An integrated map of genetic variation from 1,092 human genomes

Journal name:
Nature
Volume:
491,
Pages:
56–65
Date published:
DOI:
doi:10.1038/nature11632
Received
Accepted
Published online

Abstract

By characterizing the geographic and functional spectrum of human genetic variation, the 1000 Genomes Project aims to build a resource to help to understand the genetic contribution to disease. Here we describe the genomes of 1,092 individuals from 14 populations, constructed using a combination of low-coverage whole-genome and exome sequencing. By developing methods to integrate information across several algorithms and diverse data sources, we provide a validated haplotype map of 38million single nucleotide polymorphisms, 1.4million short insertions and deletions, and more than 14,000 larger deletions. We show that individuals from different populations carry different profiles of rare and common variants, and that low-frequency variants show substantial geographic differentiation, which is further increased by the action of purifying selection. We show that evolutionary conservation and coding consequence are key determinants of the strength of purifying selection, that rare-variant load varies substantially across biological pathways, and that each individual contains hundreds of rare non-coding variants at conserved sites, such as motif-disrupting changes in transcription-factor-binding sites. This resource, which captures up to 98% of accessible single nucleotide polymorphisms at a frequency of 1% in related populations, enables analysis of common and low-frequency variants in individuals from diverse, including admixed, populations.

At a glance

Figures

  1. Power and accuracy.
    Figure 1: Power and accuracy.

    a, Power to detect SNPs as a function of variant count (and proportion) across the entire set of samples, estimated by comparison to independent SNP array data in the exome (green) and whole genome (blue). b, Genotype accuracy compared with the same SNP array data as a function of variant frequency, summarized by the r2 between true and inferred genotype (coded as 0, 1 and 2) within the exome (green), whole genome after haplotype integration (blue), and whole genome without haplotype integration (red). LD, linkage disequilibrium; WGS, whole-genome sequencing.

  2. The distribution of rare and common variants.
    Figure 2: The distribution of rare and common variants.

    a, Summary of inferred haplotypes across a 100-kb region of chromosome 2 spanning the genes ALMS1 and NAT8, variation in which has been associated with kidney disease45. Each row represents an estimated haplotype, with the population of origin indicated on the right. Reference alleles are indicated by the light blue background. Variants (non-reference alleles) above 0.5% frequency are indicated by pink (typed on the high-density SNP array), white (previously known) and dark blue (not previously known). Low frequency variants (<0.5%) are indicated by blue crosses. Indels are indicated by green triangles and novel variants by dashes below. A large, low-frequency deletion (black line) spanning NAT8 is present in some populations. Multiple structural haplotypes mediated by segmental duplications are present at this locus, including copy number gains, which were not genotyped for this study. Within each population, haplotypes are ordered by total variant count across the region. Population abbreviations: ASW, people with African ancestry in Southwest United States; CEU, Utah residents with ancestry from Northern and Western Europe; CHB, Han Chinese in Beijing, China; CHS, Han Chinese South, China; CLM, Colombians in Medellin, Colombia; FIN, Finnish in Finland; GBR, British from England and Scotland, UK; IBS, Iberian populations in Spain; LWK, Luhya in Webuye, Kenya; JPT, Japanese in Tokyo, Japan; MXL, people with Mexican ancestry in Los Angeles, California; PUR, Puerto Ricans in Puerto Rico; TSI, Toscani in Italia; YRI, Yoruba in Ibadan, Nigeria. Ancestry-based groups: AFR, African; AMR, Americas; EAS, East Asian; EUR, European. b, The fraction of variants identified across the project that are found in only one population (white line), are restricted to a single ancestry-based group (defined as in a, solid colour), are found in all groups (solid black line) and all populations (dotted black line). c, The density of the expected number of variants per kilobase carried by a genome drawn from each population, as a function of variant frequency (see Supplementary Information). Colours as in a. Under a model of constant population size, the expected density is constant across the frequency spectrum.

  3. Allele sharing within and between populations.
    Figure 3: Allele sharing within and between populations.

    a, Sharing of f2 variants, those found exactly twice across the entire sample, within and between populations. Each row represents the distribution across populations for the origin of samples sharing an f2 variant with the target population (indicated by the left-hand side). The grey bars represent the average number of f2 variants carried by a randomly chosen genome in each population. b, Median length of haplotype identity (excluding cryptically related samples and singleton variants, and allowing for up to two genotype errors) between two chromosomes that share variants of a given frequency in each population. Estimates are from 200 randomly sampled regions of 1Mb each and up to 15 pairs of individuals for each variant. c, The average proportion of variants that are new (compared with the pilot phase of the project) among those found in regions inferred to have different ancestries within ASW, PUR, CLM and MXL populations. Error bars represent 95% bootstrap confidence intervals. NatAm, Native American.

  4. Purifying selection within and between populations.
    Figure 4: Purifying selection within and between populations.

    a, The relationship between evolutionary conservation (measured by GERP score19) and rare variant proportion (fraction of all variants with derived allele frequency (DAF)<0.5%) for variants occurring in different functional elements and with different coding consequences. Crosses indicate the average GERP score at variant sites (x axis) and the proportion of rare variants (y axis) in each category. ENHCR, enhancer; lincRNA, large intergenic non-coding RNA; non-syn, non-synonymous; PSEUG, pseudogene; syn, synonymous; TF, transcription factor. b, Levels of evolutionary conservation (mean GERP score, top) and genetic diversity (per-nucleotide pairwise differences, bottom) for sequences matching the CTCF-binding motif within CTCF-binding peaks, as identified experimentally by ChIP-seq in the ENCODE project13 (blue) and in a matched set of motifs outside peaks (red). The logo plot shows the distribution of identified motifs within peaks. Error bars represent±2 s.e.m.

  5. Implications of phase I 1000 Genomes Project data for GWAS.
    Figure 5: Implications of phase I 1000 Genomes Project data for GWAS.

    a, Accuracy of imputation of genome-wide SNPs, exome SNPs and indels (using sites on the Illumina 1M array) into ten individuals of African ancestry (three LWK, four Masaai from Kinyawa, Kenya(MKK), two YRI), sequenced to high coverage by an independent technology3. Only indels in regions of high sequence complexity with frequency >1% are analysed. Deletion imputation accuracy estimated by comparison to array data46 (note that this is for a different set of individuals, although with a similar ancestry, but included on the same plot for clarity). Accuracy measured by squared Pearson correlation coefficient between imputed and true dosage across all sites in a frequency range estimated from the 1000 Genomes data. Lines represent whole-genome SNPs (solid), exome SNPs (long dashes), short indels (dotted) and large deletions (short dashes). SV, structural variants. b, The average number of variants in linkage disequilibrium (r2>0.5 among EUR) to focal SNPs identified in GWAS47 as a function of distance from the index SNP. Lines indicate the number of HapMap (green), pilot (red) and phase I (blue) variants.

Introduction

Recent efforts to map human genetic variation by sequencing exomes1 and whole genomes2, 3, 4 have characterized the vast majority of common single nucleotide polymorphisms (SNPs) and many structural variants across the genome. However, although more than 95% of common (>5% frequency) variants were discovered in the pilot phase of the 1000 Genomes Project, lower-frequency variants, particularly those outside the coding exome, remain poorly characterized. Low-frequency variants are enriched for potentially functional mutations, for example, protein-changing variants, under weak purifying selection1, 5, 6. Furthermore, because low-frequency variants tend to be recent in origin, they exhibit increased levels of population differentiation6, 7, 8. Characterizing such variants, for both point mutations and structural changes, across a range of populations is thus likely to identify many variants of functional importance and is crucial for interpreting individual genome sequences, to help separate shared variants from those private to families, for example.

We now report on the genomes of 1,092 individuals sampled from 14 populations drawn from Europe, East Asia, sub-Saharan Africa and the Americas (Supplementary Figs 1 and 2), analysed through a combination of low-coverage (2–6×) whole-genome sequence data, targeted deep (50–100×) exome sequence data and dense SNP genotype data (Table 1 and Supplementary Tables 1–3). This design was shown by the pilot phase2 to be powerful and cost-effective in discovering and genotyping all but the rarest SNP and short insertion and deletion (indel) variants. Here, the approach was augmented with statistical methods for selecting higher quality variant calls from candidates obtained using multiple algorithms, and to integrate SNP, indel and larger structural variants within a single framework (see Box 1 and Supplementary Fig. 1). Because of the challenges of identifying large and complex structural variants and shorter indels in regions of low complexity, we focused on conservative but high-quality subsets: biallelic indels and large deletions.

Table 1: Summary of 1000 Genomes Project phase I data

Box 1: Constructing an integrated map of variation

Overall, we discovered and genotyped 38million SNPs, 1.4million bi-allelic indels and 14,000 large deletions (Table 1). Several technologies were used to validate a frequency-matched set of sites to assess and control the false discovery rate (FDR) for all variant types. Where results were clear, 3 out of 185 exome sites (1.6%), 5 out of 281 low-coverage sites (1.8%) and 72 out of 3,415 large deletions (2.1%) could not be validated (Supplementary Information and Supplementary Tables 4–9). The initial indel call set was found to have a high FDR (27 out of 76), which led to the application of further filters, leaving an implied FDR of 5.4% (Supplementary Table 6 and Supplementary Information). Moreover, for 2.1% of low-coverage SNP and 18% of indel sites, we found inconsistent or ambiguous results, indicating that substantial challenges remain in characterizing variation in low-complexity genomic regions. We previously described the ‘accessible genome’: the fraction of the reference genome in which short-read data can lead to reliable variant discovery. Through longer read lengths, the fraction accessible has increased from 85% in the pilot phase to 94% (available as a genome annotation; see Supplementary Information), and 1.7million low-quality SNPs from the pilot phase have been eliminated.

By comparison to external SNP and high-depth sequencing data, we estimate the power to detect SNPs present at a frequency of 1% in the study samples is 99.3% across the genome and 99.8% in the consensus exome target (Fig. 1a). Moreover, the power to detect SNPs at 0.1% frequency in the study is more than 90% in the exome and nearly 70% across the genome. The accuracy of individual genotype calls at heterozygous sites is more than 99% for common SNPs and 95% for SNPs at a frequency of 0.5% (Fig. 1b). By integrating linkage disequilibrium information, genotypes from low-coverage data are as accurate as those from high-depth exome data for SNPs with frequencies >1%. For very rare SNPs (≤0.1%, therefore present in one or two copies), there is no gain in genotype accuracy from incorporating linkage disequilibrium information and accuracy is lower. Variation among samples in genotype accuracy is primarily driven by sequencing depth (Supplementary Fig. 3) and technical issues such as sequencing platform and version (detectable by principal component analysis; Supplementary Fig. 4), rather than by population-level characteristics. The accuracy of inferred haplotypes at common SNPs was estimated by comparison to SNP data collected on mother–father–offspring trios for a subset of the samples. This indicates that a phasing (switch) error is made, on average, every 300–400kilobases (kb) (Supplementary Fig. 5).

Figure 1: Power and accuracy.
Power and accuracy.

a, Power to detect SNPs as a function of variant count (and proportion) across the entire set of samples, estimated by comparison to independent SNP array data in the exome (green) and whole genome (blue). b, Genotype accuracy compared with the same SNP array data as a function of variant frequency, summarized by the r2 between true and inferred genotype (coded as 0, 1 and 2) within the exome (green), whole genome after haplotype integration (blue), and whole genome without haplotype integration (red). LD, linkage disequilibrium; WGS, whole-genome sequencing.

A key goal of the 1000 Genomes Project was to identify more than 95% of SNPs at 1% frequency in a broad set of populations. Our current resource includes ~50%, 98% and 99.7% of the SNPs with frequencies of ~0.1%, 1.0% and 5.0%, respectively, in ~2,500 UK-sampled genomes (the Wellcome Trust-funded UK10K project), thus meeting this goal. However, coverage may be lower for populations not closely related to those studied. For example, our resource includes only 23.7%, 76.9% and 99.3% of the SNPs with frequencies of ~0.1%, 1.0% and 5.0%, respectively, in ~2,000 genomes sequenced in a study of the isolated population of Sardinia (the SardiNIA study).

Genetic variation within and between populations

The integrated data set provides a detailed view of variation across several populations (illustrated in Fig. 2a). Most common variants (94% of variants with frequency≥5% in Fig. 2a) were known before the current phase of the project and had their haplotype structure mapped through earlier projects2, 9. By contrast, only 62% of variants in the range 0.5–5% and 13% of variants with frequencies of≤0.5% had been described previously. For analysis, populations are grouped by the predominant component of ancestry: Europe (CEU (see Fig. 2a for definitions of this and other populations), TSI, GBR, FIN and IBS), Africa (YRI, LWK and ASW), East Asia (CHB, JPT and CHS) and the Americas (MXL, CLM and PUR). Variants present at 10% and above across the entire sample are almost all found in all of the populations studied. By contrast, 17% of low-frequency variants in the range 0.5–5% were observed in a single ancestry group, and 53% of rare variants at 0.5% were observed in a single population (Fig. 2b). Within ancestry groups, common variants are weakly differentiated (most within-group estimates of Wright’s fixation index (FST) are <1%; Supplementary Table 11), although below 0.5% frequency variants are up to twice as likely to be found within the same population compared with random samples from the ancestry group (Supplementary Fig. 6a). The degree of rare-variant differentiation varies between populations. For example, within Europe, the IBS and FIN populations carry excesses of rare variants (Supplementary Fig. 6b), which can arise through events such as recent bottlenecks10, ‘clan’ breeding structures11 and admixture with diverged populations12.

Figure 2: The distribution of rare and common variants.
The distribution of rare and common variants.

a, Summary of inferred haplotypes across a 100-kb region of chromosome 2 spanning the genes ALMS1 and NAT8, variation in which has been associated with kidney disease45. Each row represents an estimated haplotype, with the population of origin indicated on the right. Reference alleles are indicated by the light blue background. Variants (non-reference alleles) above 0.5% frequency are indicated by pink (typed on the high-density SNP array), white (previously known) and dark blue (not previously known). Low frequency variants (<0.5%) are indicated by blue crosses. Indels are indicated by green triangles and novel variants by dashes below. A large, low-frequency deletion (black line) spanning NAT8 is present in some populations. Multiple structural haplotypes mediated by segmental duplications are present at this locus, including copy number gains, which were not genotyped for this study. Within each population, haplotypes are ordered by total variant count across the region. Population abbreviations: ASW, people with African ancestry in Southwest United States; CEU, Utah residents with ancestry from Northern and Western Europe; CHB, Han Chinese in Beijing, China; CHS, Han Chinese South, China; CLM, Colombians in Medellin, Colombia; FIN, Finnish in Finland; GBR, British from England and Scotland, UK; IBS, Iberian populations in Spain; LWK, Luhya in Webuye, Kenya; JPT, Japanese in Tokyo, Japan; MXL, people with Mexican ancestry in Los Angeles, California; PUR, Puerto Ricans in Puerto Rico; TSI, Toscani in Italia; YRI, Yoruba in Ibadan, Nigeria. Ancestry-based groups: AFR, African; AMR, Americas; EAS, East Asian; EUR, European. b, The fraction of variants identified across the project that are found in only one population (white line), are restricted to a single ancestry-based group (defined as in a, solid colour), are found in all groups (solid black line) and all populations (dotted black line). c, The density of the expected number of variants per kilobase carried by a genome drawn from each population, as a function of variant frequency (see Supplementary Information). Colours as in a. Under a model of constant population size, the expected density is constant across the frequency spectrum.

Some common variants show strong differentiation between populations within ancestry-based groups (Supplementary Table 12), many of which are likely to have been driven by local adaptation either directly or through hitchhiking. For example, the strongest differentiation between African populations is within an NRSF (neuron-restrictive silencer factor) transcription-factor peak (PANC1 cell line)13, upstream of ST8SIA1 (difference in derived allele frequency LWKYRI of 0.475 at rs7960970), whose product is involved in ganglioside generation14. Overall, we find a range of 17–343SNPs (fewest = CEUGBR, most = FINTSI) showing a difference in frequency of at least 0.25 between pairs of populations within an ancestry group.

The derived allele frequency distribution shows substantial divergence between populations below a frequency of 40% (Fig. 2c), such that individuals from populations with substantial African ancestry (YRI, LWK and ASW) carry up to three times as many low-frequency variants (0.5–5% frequency) as those of European or East Asian origin, reflecting ancestral bottlenecks in non-African populations15. However, individuals from all populations show an enrichment of rare variants (<0.5% frequency), reflecting recent explosive increases in population size and the effects of geographic differentiation6, 16. Compared with the expectations from a model of constant population size, individuals from all populations show a substantial excess of high-frequency-derived variants (>80% frequency).

Because rare variants are typically recent, their patterns of sharing can reveal aspects of population history. Variants present twice across the entire sample (referred to as f2 variants), typically the most recent of informative mutations, are found within the same population in 53% of cases (Fig. 3a). However, between-population sharing identifies recent historical connections. For example, if one of the individuals carrying an f2 variant is from the Spanish population (IBS) and the other is not (referred to as IBS−X), the other individual is more likely to come from the Americas populations (48%, correcting for sample size) than from elsewhere in Europe (41%). Within the East Asian populations, CHS and CHB show stronger f2 sharing to each other (58% and 53% of CHS−X and CHB−X variants, respectively) than either does to JPT, but JPT is closer to CHB than to CHS (44% versus 35% of JPT−X variants). Within African-ancestry populations, the ASW are closer to the YRI (42% of ASW−X f2 variants) than the LWK (28%), in line with historical information17 and genetic evidence based on common SNPs18. Some sharing patterns are surprising; for example, 2.5% of the f2 FIN−X variants are shared with YRI or LWK populations.

Figure 3: Allele sharing within and between populations.
Allele sharing within and between populations.

a, Sharing of f2 variants, those found exactly twice across the entire sample, within and between populations. Each row represents the distribution across populations for the origin of samples sharing an f2 variant with the target population (indicated by the left-hand side). The grey bars represent the average number of f2 variants carried by a randomly chosen genome in each population. b, Median length of haplotype identity (excluding cryptically related samples and singleton variants, and allowing for up to two genotype errors) between two chromosomes that share variants of a given frequency in each population. Estimates are from 200 randomly sampled regions of 1Mb each and up to 15 pairs of individuals for each variant. c, The average proportion of variants that are new (compared with the pilot phase of the project) among those found in regions inferred to have different ancestries within ASW, PUR, CLM and MXL populations. Error bars represent 95% bootstrap confidence intervals. NatAm, Native American.

Independent evidence about variant age comes from the length of the shared haplotypes on which they are found. We find, as expected, a negative correlation between variant frequency and the median length of shared haplotypes, such that chromosomes carrying variants at 1% frequency share haplotypes of 100–150kb (typically 0.08–0.13cM; Fig. 3b and Supplementary Fig. 7a), although the distribution is highly skewed and 2–5% of haplotypes around the rarest SNPs extend over 1megabase (Mb) (Supplementary Fig. 7b, c). Haplotype phasing and genotype calling errors will limit the ability to detect long shared haplotypes, and the observed lengths are a factor of 2–3 times shorter than predicted by models that allow for recent explosive growth6 (Supplementary Fig. 7a). Nevertheless, the haplotype length for variants shared within and between populations is informative about relative allele age. Within populations and between populations in which there is recent shared ancestry (for example, through admixture and within continents), f2 variants typically lie on long shared haplotypes (median within ancestry group 103kb; Supplementary Fig. 8). By contrast, between populations with no recent shared ancestry, f2 variants are present on very short haplotypes, for example, an average of 11kb for FINYRI f2 variants (median between ancestry groups excluding admixture is 15kb), and are therefore likely to reflect recurrent mutations and chance ancient coalescent events.

To analyse populations with substantial historical admixture, statistical methods were applied to each individual to infer regions of the genome with different ancestries. Populations and individuals vary substantially in admixture proportions. For example, the MXL population contains the greatest proportion of Native American ancestry (47% on average compared with 24% in CLM and 13% in PUR), but the proportion varies from 3% to 92% between individuals (Supplementary Fig. 9a). Rates of variant discovery, the ratio of non-synonymous to synonymous variation and the proportion of variants that are new vary systematically between regions with different ancestries. Regions of Native American ancestry show less variation, but a higher fraction of the variants discovered are novel (3.0% of variants per sample; Fig. 3c) compared with regions of European ancestry (2.6%). Regions of African ancestry show the highest rates of novelty (6.2%) and heterozygosity (Supplementary Fig. 9b, c).

The functional spectrum of human variation

The phase I data enable us to compare, for different genomic features and variant types, the effects of purifying selection on evolutionary conservation19, the allele frequency distribution and the level of differentiation between populations. At the most highly conserved coding sites, 85% of non-synonymous variants and more than 90% of stop-gain and splice-disrupting variants are below 0.5% in frequency, compared with 65% of synonymous variants (Fig. 4a). In general, the rare variant excess tracks the level of evolutionary conservation for variants of most functional consequence, but varies systematically between types (for example, for a given level of conservation enhancer variants have a higher rare variant excess than variants in transcription-factor motifs). However, stop-gain variants and, to a lesser extent, splice-site disrupting changes, show increased rare-variant excess whatever the conservation of the base in which they occur, as such mutations can be highly deleterious whatever the level of sequence conservation. Interestingly, the least conserved splice-disrupting variants show similar rare-variant loads to synonymous and non-coding regions, suggesting that these alternative transcripts are under very weak selective constraint. Sites at which variants are observed are typically less conserved than average (for example, sites with non-synonymous variants are, on average, as conserved as third codon positions; Supplementary Fig. 10).

Figure 4: Purifying selection within and between populations.
Purifying selection within and between populations.

a, The relationship between evolutionary conservation (measured by GERP score19) and rare variant proportion (fraction of all variants with derived allele frequency (DAF)<0.5%) for variants occurring in different functional elements and with different coding consequences. Crosses indicate the average GERP score at variant sites (x axis) and the proportion of rare variants (y axis) in each category. ENHCR, enhancer; lincRNA, large intergenic non-coding RNA; non-syn, non-synonymous; PSEUG, pseudogene; syn, synonymous; TF, transcription factor. b, Levels of evolutionary conservation (mean GERP score, top) and genetic diversity (per-nucleotide pairwise differences, bottom) for sequences matching the CTCF-binding motif within CTCF-binding peaks, as identified experimentally by ChIP-seq in the ENCODE project13 (blue) and in a matched set of motifs outside peaks (red). The logo plot shows the distribution of identified motifs within peaks. Error bars represent±2 s.e.m.

A simple way of estimating the segregating load arising from rare, deleterious mutations across a set of genes comes from comparing the ratios of non-synonymous to synonymous variants in different frequency ranges. The non-synonymous to synonymous ratio among rare (<0.5%) variants is typically in the range 1–2, and among common variants in the range 0.5–1.5, suggesting that 25–50% of rare non-synonymous variants are deleterious. However, the segregating rare load among gene groups in KEGG pathways20 varies substantially (Supplementary Fig. 11a and Supplementary Table 13). Certain groups (for example, those involving extracellular matrix (ECM)–receptor interactions, DNA replication and the pentose phosphate pathway) show a substantial excess of rare coding mutations, which is only weakly correlated with the average degree of evolutionary conservation. Pathways and processes showing an excess of rare functional variants vary between continents (Supplementary Fig. 11b). Moreover, the excess of rare non-synonymous variants is typically higher in populations of European and East Asian ancestry (for example, the ECM–receptor interaction pathway load is strongest in European populations). Other groups of genes (such as those associated with allograft rejection) have a high non-synonymous to synonymous ratio in common variants, potentially indicating the effects of positive selection.

Genome-wide data provide important insights into the rates of functional polymorphism in the non-coding genome. For example, we consider motifs matching the consensus for the transcriptional repressor CTCF, which has a well-characterized and highly conserved binding motif21. Within CTCF-binding peaks experimentally defined by chromatin-immunoprecipitation sequencing (ChIP-seq), the average levels of conservation within the motif are comparable to third codon positions, whereas there is no conservation outside peaks (Fig. 4b). Within peaks, levels of genetic diversity are typically reduced 25–75%, depending on the position in the motif (Fig. 4b). Unexpectedly, the reduction in diversity at some degenerate positions, for example, at position 8 in the motif, is as great as that at non-degenerate positions, suggesting that motif degeneracy may not have a simple relationship with functional importance. Variants within peaks show a weak but consistent excess of rare variation (proportion with frequency <0.5% is 61% within peaks compared with 58% outside peaks; Supplementary Fig. 12), supporting the hypothesis that regulatory sequences contain substantial amounts of weakly deleterious variation.

Purifying selection can also affect population differentiation if its strength and efficacy vary among populations. Although the magnitude of the effect is weak, non-synonymous variants consistently show greater levels of population differentiation than synonymous variants, for variants of frequencies of less than 10% (Supplementary Fig. 13).

Uses of 1000 Genomes Project data in medical genetics

Data from the 1000 Genomes Project are widely used to screen variants discovered in exome data from individuals with genetic disorders22 and in cancer genome projects23. The enhanced catalogue presented here improves the power of such screening. Moreover, it provides a ‘null expectation’ for the number of rare, low-frequency and common variants with different functional consequences typically found in randomly sampled individuals from different populations.

Estimates of the overall numbers of variants with different sequence consequences are comparable to previous values1, 20, 21, 22 (Supplementary Table 14). However, only a fraction of these are likely to be functionally relevant. A more accurate picture of the number of functional variants is given by the number of variants segregating at conserved positions (here defined as sites with a genomic evolutionary rate profiling (GERP)19 conservation score of >2), or where the function (for example, stop-gain variants) is strong and independent of conservation (Table 2). We find that individuals typically carry more than 2,500 non-synonymous variants at conserved positions, 20–40 variants identified as damaging24 at conserved sites and about 150 loss-of-function (LOF) variants (stop-gains, frameshift indels in coding sequence and disruptions to essential splice sites). However, most of these are common (>5%) or low-frequency (0.5–5%), such that the numbers of rare (<0.5%) variants in these categories (which might be considered as pathological candidates) are much lower; 130–400 non-synonymous variants per individual, 10–20 LOF variants, 2–5 damaging mutations, and 1–2 variants identified previously from cancer genome sequencing25. By comparison with synonymous variants, we can estimate the excess of rare variants; those mutations that are sufficiently deleterious that they will never reach high frequency. We estimate that individuals carry an excess of 76–190 rare deleterious non-synonymous variants and up to 20 LOF and disease-associated variants. Interestingly, the overall excess of low-frequency variants is similar to that of rare variants (Table 2). Because many variants contributing to disease risk are likely to be segregating at low frequency, we recommend that variant frequency be considered when using the resource to identify pathological candidates.

Table 2: Per-individual variant load at conserved sites

The combination of variation data with information about regulatory function13 can potentially improve the power to detect pathological non-coding variants. We find that individuals typically contain several thousand variants (and several hundred rare variants) in conserved (GERP conservation score >2) untranslated regions (UTR), non-coding RNAs and transcription-factor-binding motifs (Table 2). Within experimentally defined transcription-factor-binding sites, individuals carry 700–900 conserved motif losses (for the transcription factors analysed, see Supplementary Information), of which 18–69 are rare (<0.5%) and show strong evidence for being selected against. Motif gains are rarer (~200 per individual at conserved sites), but they also show evidence for an excess of rare variants compared with conserved sites with no functional annotation (Table 2). Many of these changes are likely to have weak, slightly deleterious effects on gene regulation and function.

A second major use of the 1000 Genomes Project data in medical genetics is imputing genotypes in existing genome-wide association studies (GWAS)26. For common variants, the accuracy of using the phase I data to impute genotypes at sites not on the original GWAS SNP array is typically 90–95% in non-African and approximately 90% in African-ancestry genomes (Fig. 5a and Supplementary Fig. 14a), which is comparable to the accuracy achieved with high-quality benchmark haplotypes (Supplementary Fig. 14b). Imputation accuracy is similar for intergenic SNPs, exome SNPs, indels and large deletions (Supplementary Fig. 14c), despite the different amounts of information about such variants and accuracy of genotypes. For low-frequency variants (1–5%), imputed genotypes have between 60% and 90% accuracy in all populations, including those with admixed ancestry (also comparable to the accuracy from trio-phased haplotypes; Supplementary Fig. 14b).

Figure 5: Implications of phase I 1000 Genomes Project data for GWAS.
Implications of phase I 1000 Genomes Project data for GWAS.

a, Accuracy of imputation of genome-wide SNPs, exome SNPs and indels (using sites on the Illumina 1M array) into ten individuals of African ancestry (three LWK, four Masaai from Kinyawa, Kenya(MKK), two YRI), sequenced to high coverage by an independent technology3. Only indels in regions of high sequence complexity with frequency >1% are analysed. Deletion imputation accuracy estimated by comparison to array data46 (note that this is for a different set of individuals, although with a similar ancestry, but included on the same plot for clarity). Accuracy measured by squared Pearson correlation coefficient between imputed and true dosage across all sites in a frequency range estimated from the 1000 Genomes data. Lines represent whole-genome SNPs (solid), exome SNPs (long dashes), short indels (dotted) and large deletions (short dashes). SV, structural variants. b, The average number of variants in linkage disequilibrium (r2>0.5 among EUR) to focal SNPs identified in GWAS47 as a function of distance from the index SNP. Lines indicate the number of HapMap (green), pilot (red) and phase I (blue) variants.

Imputation has two primary uses: fine-mapping existing association signals and detecting new associations. GWAS have had only a few examples of successful fine-mapping to single causal variants27, 28, often because of extensive haplotype structure within regions of association29, 30. We find that, in Europeans, each previously reported GWAS signal31 is, on average, in linkage disequilibrium (r20.5) with 56 variants: 51.5SNPs and 4.5indels. In 19% of cases at least one of these variants changes the coding sequence of a nearby gene (compared with 12% in control variants matched for frequency, distance to nearest gene and ascertainment in GWAS arrays) and in 65% of cases at least one of these is at a site with GERP >2 (68% in matched controls). The size of the associated region is typically <200kb in length (Fig. 5b). Our observations suggest that trans-ethnic fine-mapping experiments are likely to be especially valuable: among the 56 variants that are in strong linkage disequilibrium with a typical GWAS signal, approximately 15 show strong disequilibrium across our four continental groupings (Supplementary Table 15). Our current resource increases the number of variants in linkage disequilibrium with each GWAS signal by 25% compared with the pilot phase of the project and by greater than twofold compared with the HapMap resource.

Discussion

The success of exome sequencing in Mendelian disease genetics32 and the discovery of rare and low-frequency disease-associated variants in genes associated with complex diseases27, 33, 34 strongly support the hypothesis that, in addition to factors such as epistasis35, 36 and gene–environment interactions37, many other genetic risk factors of substantial effect size remain to be discovered through studies of rare variation. The data generated by the 1000 Genomes Project not only aid the interpretation of all genetic-association studies, but also provide lessons on how best to design and analyse sequencing-based studies of disease.

The use and cost-effectiveness of collecting several data types (low-coverage whole-genome sequence, targeted exome data, SNP genotype data) for finding variants and reconstructing haplotypes are demonstrated here. Exome capture provides private and rare variants that are missed by low-coverage data (approximately 60% of the singleton variants in the sample were detected only from exome data compared with 5% detected only from low-coverage data; Supplementary Fig. 15). However, whole-genome data enable characterization of functional non-coding variation and accurate haplotype estimation, which are essential for the analysis of cis-effects around genes, such as those arising from variation in upstream regulatory regions38. There are also benefits from integrating SNP array data, for example, to improve genotype estimation39 and to aid haplotype estimation where array data have been collected on additional family members. In principle, any sources of genotype information (for example, from array CGH) could be integrated using the statistical methods developed here.

Major methodological advances in phase I, including improved methods for detecting and genotyping variants40, statistical and machine-learning methods for evaluating the quality of candidate variant calls, modelling of genotype likelihoods and performing statistical haplotype integration41, have generated a high-quality resource. However, regions of low sequence complexity, satellite regions, large repeats and many large-scale structural variants, including copy-number polymorphisms, segmental duplications and inversions (which constitute most of the ‘inaccessible genome’), continue to present a major challenge for short-read technologies. Some issues are likely to be improved by methodological developments such as better modelling of read-level errors, integrating de novo assembly42, 43 and combining multiple sources of information to aid genotyping of structurally diverse regions40, 44. Importantly, even subtle differences in data type, data processing or algorithms may lead to systematic differences in false-positive and false-negative error modes between samples. Such differences complicate efforts to compare genotypes between sequencing studies. Moreover, analyses that naively combine variant calls and genotypes across heterogeneous data sets are vulnerable to artefact. Analyses across multiple data sets must therefore either process them in standard ways or use meta-analysis approaches that combine association statistics (but not raw data) across studies.

Finally, the analysis of low-frequency variation demonstrates both the pervasive effects of purifying selection at functionally relevant sites in the genome and how this can interact with population history to lead to substantial local differentiation, even when standard metrics of structure such as FST are very small. The effect arises primarily because rare variants tend to be recent and thus geographically restricted6, 7, 8. The implication is that the interpretation of rare variants in individuals with a particular disease should be within the context of the local (either geographic or ancestry-based) genetic background. Moreover, it argues for the value of continuing to sequence individuals from diverse populations to characterize the spectrum of human genetic variation and support disease studies across diverse groups. A further 1,500 individuals from 12 new populations, including at least 15 high-depth trios, will form the final phase of this project.

Methods

All details concerning sample collection, data generation, processing and analysis can be found in the Supplementary Information. Supplementary Fig. 1 summarizes the process and indicates where relevant details can be found.

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Acknowledgements

We thank many people who contributed to this project: A. Naranjo, M. V. Parra and C. Duque for help with the collection of the Colombian samples; N. Kälin and F. Laplace for discussions; A. Schlattl and T. Zichner for assistance in managing data sets; E. Appelbaum, H. Arbery, E. Birney, S. Bumpstead, J. Camarata, J. Carey, G. Cochrane, M. DaSilva, S. Dökel, E. Drury, C. Duque, K. Gyaltsen, P. Jokinen, B. Lenz, S. Lewis, D. Lu, A. Naranjo, S. Ott, I. Padioleau, M. V. Parra, N. Patterson, A. Price, L. Sadzewicz, S. Schrinner, N. Sengamalay, J. Sullivan, F. Ta, Y. Vaydylevich, O. Venn, K. Watkins and A. Yurovsky for assistance, discussion and advice. We thank the people who generously contributed their samples, from these populations: Yoruba in Ibadan, Nigeria; the Han Chinese in Beijing, China; the Japanese in Tokyo, Japan; the Utah CEPH community; the Luhya in Webuye, Kenya; people with African ancestry in the Southwest United States; the Toscani in Italia; people with Mexican ancestry in Los Angeles, California; the Southern Han Chinese in China; the British in England and Scotland; the Finnish in Finland; the Iberian Populations in Spain; the Colombians in Medellin, Colombia; and the Puerto Ricans in Puerto Rico. This research was supported in part by Wellcome Trust grants WT098051 to R.M.D., M.E.H. and C.T.S.; WT090532/Z/09/Z, WT085475/Z/08/Z and WT095552/Z/11/Z to P.Do.; WT086084/Z/08/Z and WT090532/Z/09/Z to G.A.M.; WT089250/Z/09/Z to I.M.; WT085532AIA to P.F.; Medical Research Council grant G0900747(91070) to G.A.M.; British Heart Foundation grant RG/09/12/28096 to C.A.A.; the National Basic Research Program of China (973 program no. 2011CB809201, 2011CB809202 and 2011CB809203); the Chinese 863 program (2012AA02A201); the National Natural Science Foundation of China (30890032, 31161130357); the Shenzhen Key Laboratory of Transomics Biotechnologies (CXB201108250096A); the Shenzhen Municipal Government of China (grants ZYC200903240080A and ZYC201105170397A); Guangdong Innovative Research Team Program (no. 2009010016); BMBF grant 01GS08201 to H.Le.; BMBF grant 0315428A to R.H.; the Max Planck Society; Swiss National Science Foundation 31003A_130342 to E.T.D.; Swiss National Science Foundation NCCR ‘Frontiers in Genetics’ grant to E.T.D.; Louis Jeantet Foundation grant to E.T.D.; Biotechnology and Biological Sciences Research Council (BBSRC) grant BB/I021213/1 to A.R.-L.; German Research Foundation (Emmy Noether Fellowship KO 4037/1-1) to J.O.K.; Netherlands Organization for Scientific Research VENI grant 639.021.125 to K.Y.; Beatriu de Pinos Program grants 2006BP-A 10144 and 2009BP-B 00274 to M.V.; Israeli Science Foundation grant 04514831 to E.H.; Genome Québec and the Ministry of Economic Development, Innovation and Trade grant PSR-SIIRI-195 to P.Aw.; National Institutes of Health (NIH) grants UO1HG5214, RC2HG5581 and RO1MH84698 to G.R.A.; R01HG4719 and R01HG3698 to G.T.M; RC2HG5552 and UO1HG6513 to G.R.A. and G.T.M.; R01HG4960 and R01HG5701 to B.L.B.; U01HG5715 to C.D.B. and A.G.C.; T32GM8283 to D.Cl.; U01HG5208 to M.J.D.; U01HG6569 to M.A.D.; R01HG2898 and R01CA166661 to S.E.D.; UO1HG5209, UO1HG5725 and P41HG4221 to C.Le.; P01HG4120 to E.E.E.; U01HG5728 to Yu.F.; U54HG3273 and U01HG5211 to R.A.G.; R01HL95045 to S.B.G.; U41HG4568 to S.J.K.; P41HG2371 to W.J.K.; ES015794, AI077439, HL088133 and HL078885 to E.G.B.; RC2HL102925 to S.B.G. and D.M.A.; R01GM59290 to L.B.J. and M.A.B.; U54HG3067 to E.S.L. and S.B.G.; T15LM7033 to B.K.M.; T32HL94284 to J.L.R.-F.; DP2OD6514 and BAA-NIAID-DAIT-NIHAI2009061 to P.C.S.; T32GM7748 to X.S.; U54HG3079 to R.K.W.; UL1RR024131 to R.D.H.; HHSN268201100040C to the Coriell Institute for Medical Research; a Sandler Foundation award and an American Asthma Foundation award to E.G.B.; an IBM Open Collaborative Research Program award to Y.B.; an A.G. Leventis Foundation scholarship to D.K.X.; a Wolfson Royal Society Merit Award to P.Do.; a Howard Hughes Medical Institute International Fellowship award to P.H.S.; a grant from T. and V. Stanley to S.C.Y.; and a Mary Beryl Patch Turnbull Scholar Program award to K.C.B. E.H. is a faculty fellow of the Edmond J. Safra Bioinformatics program at Tel-Aviv University. E.E.E. and D.H. are investigators of the Howard Hughes Medical Institute. M.V.G. is a long-term fellow of EMBO.

Author information

Affiliations

  1. Wellcome Trust Centre for Human Genetics, Oxford University, Oxford OX3 7BN, UK.

    • Gil A. McVean,
    • Peter Donnelly,
    • Gerton Lunter,
    • Jonathan L. Marchini,
    • Simon Myers,
    • Anjali Gupta-Hinch,
    • Zamin Iqbal,
    • Iain Mathieson,
    • Andy Rimmer,
    • Dionysia K. Xifara &
    • Angeliki Kerasidou
  2. Department of Statistics, Oxford University, Oxford OX1 3TG, UK.

    • Gil A. McVean,
    • Peter Donnelly,
    • Gil A. McVean (Principal Investigator),
    • Jonathan L. Marchini,
    • Simon Myers,
    • Claire Churchhouse,
    • Olivier Delaneau &
    • Dionysia K. Xifara
  3. The Broad Institute of MIT and Harvard, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA.

    • David M. Altshuler,
    • Stacey B. Gabriel,
    • Eric S. Lander,
    • Namrata Gupta,
    • Mark J. Daly,
    • Mark A. DePristo,
    • Eric Banks,
    • Gaurav Bhatia,
    • Mauricio O. Carneiro,
    • Guillermo del Angel,
    • Giulio Genovese,
    • Robert E. Handsaker,
    • Chris Hartl,
    • Steven A. McCarroll,
    • James C. Nemesh,
    • Ryan E. Poplin,
    • Stephen F. Schaffner,
    • Khalid Shakir,
    • Pardis C. Sabeti,
    • Sharon R. Grossman,
    • Shervin Tabrizi,
    • Ridhi Tariyal &
    • Heng Li
  4. Center for Human Genetic Research, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.

    • David M. Altshuler
  5. Department of Genetics, Harvard Medical School, Cambridge, Massachusetts 02142, USA.

    • David M. Altshuler,
    • Robert E. Handsaker &
    • David Reich
  6. Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge CB10 1SA, UK.

    • Richard M. Durbin,
    • Matthew E. Hurles,
    • Senduran Balasubramaniam,
    • John Burton,
    • Petr Danecek,
    • Thomas M. Keane,
    • Anja Kolb-Kokocinski,
    • Shane McCarthy,
    • James Stalker,
    • Michael Quail,
    • Qasim Ayub,
    • Yuan Chen,
    • Alison J. Coffey,
    • Vincenza Colonna,
    • Ni Huang,
    • Luke Jostins,
    • Heng Li,
    • Aylwyn Scally,
    • Klaudia Walter,
    • Yali Xue,
    • Yujun Zhang,
    • Ben Blackburne,
    • Sarah J. Lindsay,
    • Zemin Ning,
    • Adam Frankish,
    • Jennifer Harrow &
    • Chris Tyler-Smith
  7. Center for Statistical Genetics, Biostatistics, University of Michigan, Ann Arbor, Michigan 48109, USA.

    • Gonçalo R. Abecasis,
    • Hyun Min Kang,
    • Paul Anderson,
    • Tom Blackwell,
    • Fabio Busonero,
    • Christian Fuchsberger,
    • Goo Jun,
    • Andrea Maschio,
    • Eleonora Porcu,
    • Carlo Sidore,
    • Adrian Tan &
    • Mary Kate Trost
  8. Illumina United Kingdom, Chesterford Research Park, Little Chesterford, Near Saffron Walden, Essex CB10 1XL, UK.

    • David R. Bentley,
    • Russell Grocock,
    • Sean Humphray,
    • Terena James,
    • Zoya Kingsbury,
    • Markus Bauer,
    • R. Keira Cheetham,
    • Tony Cox,
    • Michael Eberle,
    • Lisa Murray &
    • Richard Shaw
  9. McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.

    • Aravinda Chakravarti
  10. Center for Comparative and Population Genomics, Cornell University, Ithaca, New York 14850, USA.

    • Andrew G. Clark,
    • Alon Keinan,
    • Juan L. Rodriguez-Flores,
    • Francisco M. De La Vega &
    • Jeremiah Degenhardt
  11. Department of Genome Sciences, University of Washington School of Medicine and Howard Hughes Medical Institute, Seattle, Washington 98195, USA.

    • Evan E. Eichler
  12. European Bioinformatics Institute, Wellcome Trust Genome Campus, Cambridge CB10 1SD, UK.

    • Paul Flicek,
    • Laura Clarke,
    • Rasko Leinonen,
    • Richard E. Smith,
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  13. Baylor College of Medicine, Human Genome Sequencing Center, Houston, Texas 77030, USA.

    • Richard A. Gibbs,
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  14. US National Institutes of Health, National Human Genome Research Institute, 31 Center Drive, Bethesda, Maryland 20892, USA.

    • Eric D. Green
  15. Centre of Genomics and Policy, McGill University, Montréal, Québec H3A 1A4, Canada.

    • Bartha M. Knoppers
  16. European Molecular Biology Laboratory, Genome Biology Research Unit, Meyerhofstraße 1, 69117 Heidelberg, Germany.

    • Jan O. Korbel,
    • Tobias Rausch &
    • Adrian M. Stütz
  17. Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.

    • Charles Lee,
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    • Xinghua Shi,
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  18. Max Planck Institute for Molecular Genetics, Ihnestraße 63-73, 14195 Berlin, Germany.

    • Hans Lehrach,
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    • Marie-Laure Yaspo,
    • Sudbrak &
    • Ralf Herwig
  19. Dahlem Centre for Genome Research and Medical Systems Biology, D-14195 Berlin-Dahlem, Germany.

    • Hans Lehrach
  20. The Genome Center, Washington University School of Medicine, St Louis, Missouri 63108, USA.

    • Elaine R. Mardis,
    • Richard K. Wilson,
    • Lucinda Fulton,
    • Robert Fulton,
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  21. Department of Biology, Boston College, Chestnut Hill, Massachusetts 02467, USA.

    • Gabor T. Marth,
    • Erik P. Garrison,
    • Deniz Kural,
    • Wan-Ping Lee,
    • Wen Fung Leong,
    • Alistair N. Ward,
    • Jiantao Wu &
    • Mengyao Zhang
  22. Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington 98195, USA.

    • Deborah A. Nickerson,
    • Can Alkan,
    • Fereydoun Hormozdiari,
    • Arthur Ko &
    • Peter H. Sudmant
  23. Affymetrix, Inc., Santa Clara, California 95051, USA.

    • Jeanette P. Schmidt,
    • Christopher J. Davies,
    • Jeremy Gollub,
    • Teresa Webster,
    • Brant Wong &
    • Yiping Zhan
  24. US National Institutes of Health, National Center for Biotechnology Information, 45 Center Drive, Bethesda, Maryland 20892, USA.

    • Stephen T. Sherry,
    • Chunlin Xiao,
    • Deanna Church,
    • Victor Ananiev,
    • Zinaida Belaia,
    • Dimitriy Beloslyudtsev,
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    • Robert Cohen,
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    • John Garner,
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    • Eugene Shekhtman,
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    • Hua Zhang
  25. BGI-Shenzhen, Shenzhen 518083, China.

    • Jun Wang,
    • Xiaodong Fang,
    • Xiaosen Guo,
    • Min Jian,
    • Hui Jiang,
    • Xin Jin,
    • Guoqing Li,
    • Jingxiang Li,
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    • Zhuo Li,
    • Xiao Liu,
    • Yao Lu,
    • Xuedi Ma,
    • Zhe Su,
    • Shuaishuai Tai,
    • Meifang Tang,
    • Bo Wang,
    • Guangbiao Wang,
    • Honglong Wu,
    • Renhua Wu,
    • Ye Yin,
    • Wenwei Zhang,
    • Jiao Zhao,
    • Meiru Zhao,
    • Xiaole Zheng,
    • Yan Zhou,
    • Lachlan J. M. Coin,
    • Lin Fang,
    • Qibin Li,
    • Zhenyu Li,
    • Haoxiang Lin,
    • Binghang Liu,
    • Ruibang Luo,
    • Nan Qin,
    • Haojing Shao,
    • Bingqiang Wang,
    • Yinlong Xie,
    • Chen Ye,
    • Chang Yu,
    • Fan Zhang,
    • Hancheng Zheng,
    • Hongmei Zhu,
    • Hongyu Cai,
    • Hongzhi Cao,
    • Yeyang Su,
    • Zhongming Tian,
    • Yuhong Wang,
    • Huanming Yang,
    • Ling Yang,
    • Jiayong Zhu &
    • Cai Zhi Ming
  26. The Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, DK-2200 Copenhagen, Denmark.

    • Jun Wang
  27. Department of Biology, University of Copenhagen, DK-2100 Copenhagen, Denmark.

    • Jun Wang
  28. Alacris Theranostics GmbH, D-14195 Berlin-Dahlem, Germany.

    • Marcus W. Albrecht &
    • Tatiana A. Borodina
  29. Department of Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA.

    • Adam Auton
  30. Department of Computational Medicine and Bioinfomatics, University of Michigan, Ann Arbor, Michigan 48109, USA.

    • Ryan E. Mills
  31. Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.

    • Seungtai C. Yoon &
    • Jayon Lihm
  32. Seaver Autism Center and Department of Psychiatry, Mount Sinai School of Medicine, New York, New York 10029, USA.

    • Vladimir Makarov
  33. Department of Nanobiomedical Science, Dankook University, Cheonan 330-714, South Korea.

    • Hanjun Jin
  34. Department of Biological Sciences, Dankook University, Cheonan 330-714, South Korea.

    • Wook Kim &
    • Ki Cheol Kim
  35. Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14853, USA.

    • Srikanth Gottipati &
    • Danielle Jones
  36. Center for Systems Biology and Department Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA.

    • Pardis C. Sabeti,
    • Sharon R. Grossman,
    • Shervin Tabrizi &
    • Ridhi Tariyal
  37. Institute of Medical Genetics, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.

    • David N. Cooper,
    • Edward V. Ball &
    • Peter D. Stenson
  38. Illumina, Inc., San Diego, California 92122, USA.

    • Bret Barnes &
    • Scott Kahn
  39. Molecular Epidemiology Section, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center 2333 ZA, The Netherlands.

    • Kai Ye
  40. Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803, USA.

    • Mark A. Batzer,
    • Miriam K. Konkel &
    • Jerilyn A. Walker
  41. Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.

    • Daniel G. MacArthur &
    • Monkol Lek
  42. Department of Anthropology, Penn State University, University Park, Pennsylvania 16802, USA.

    • Mark D. Shriver
  43. Department of Genetics, Stanford University, Stanford, California 94305, USA.

    • Carlos D. Bustamante,
    • Simon Gravel,
    • Eimear E. Kenny,
    • Jeffrey M. Kidd,
    • Phil Lacroute,
    • Brian K. Maples,
    • Andres Moreno-Estrada,
    • Fouad Zakharia,
    • Brenna Henn &
    • Karla Sandoval
  44. Ancestry.com, San Francisco, California 94107, USA.

    • Jake K. Byrnes
  45. lavatnik School of Computer Science, Tel-Aviv UniversityB, 69978 Tel Aviv, Israel.

    • Eran Halperin &
    • Yael Baran
  46. Department of Microbiology, Tel-Aviv University, 69978 Tel Aviv, Israel.

    • Eran Halperin
  47. International Computer Science Institute, Berkeley, California 94704, USA.

    • Eran Halperin
  48. The Translational Genomics Research Institute, Phoenix, Arizona 85004, USA.

    • David W. Craig,
    • Alexis Christoforides,
    • Tyler Izatt,
    • Ahmet A. Kurdoglu &
    • Shripad A. Sinari
  49. Life Technologies, Beverly, Massachusetts 01915, USA.

    • Nils Homer
  50. Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90024, USA.

    • Kevin Squire
  51. Department of Psychiatry, University of California, San Diego, La Jolla, California 92093, USA.

    • Jonathan Sebat
  52. Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California 92093, USA.

    • Jonathan Sebat
  53. Department of Computer Science, University of California, San Diego, La Jolla, California 92093, USA.

    • Vineet Bafna
  54. Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York 10461, USA.

    • Kenny Ye
  55. Department of Bioengineering and Therapeutic Sciences and Medicine, University of California, San Francisco, California 94158, USA.

    • Esteban G. Burchard,
    • Ryan D. Hernandez &
    • Christopher R. Gignoux
  56. Center for Biomolecular Science and Engineering, University of California, Santa Cruz, California 95064, USA.

    • David Haussler,
    • Sol J. Katzman &
    • W. James Kent
  57. Howard Hughes Medical Institute, Santa Cruz, California 95064, USA.

    • David Haussler
  58. Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA.

    • Bryan Howie
  59. Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK.

    • Andres Ruiz-Linares
  60. Department of Genetic Medicine and Development, University of Geneva Medical School, 1211 Geneva, Switzerland.

    • Emmanouil T. Dermitzakis &
    • Tuuli Lappalainen
  61. Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, 1211 Geneva, Switzerland.

    • Emmanouil T. Dermitzakis &
    • Tuuli Lappalainen
  62. Swiss Institute of Bioinformatics, 1211 Geneva, Switzerland.

    • Emmanouil T. Dermitzakis &
    • Tuuli Lappalainen
  63. Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA.

    • Scott E. Devine,
    • Xinyue Liu,
    • Ankit Maroo &
    • Luke J. Tallon
  64. IST/High Performance and Research Computing, University of Medicine and Dentistry of New Jersey, Newark, New Jersey 07107, USA.

    • Jeffrey A. Rosenfeld &
    • Leslie P. Michelson
  65. Department of Invertebrate Zoology, American Museum of Natural History, New York, New York 10024, USA.

    • Jeffrey A. Rosenfeld &
    • Leslie P. Michelson
  66. Istituto di Ricerca Genetica e Biomedica, CNR, Monserrato, 09042 Cagliari, Italy.

    • Andrea Angius,
    • Fabio Busonero,
    • Francesco Cucca,
    • Andrea Maschio,
    • Eleonora Porcu,
    • Serena Sanna &
    • Carlo Sidore
  67. Department of Anthropology, University of Michigan, Ann Arbor, Michigan 48109, USA.

    • Abigail Bigham
  68. Dipartimento di Scienze Biomediche, Università delgi Studi di Sassari, 07100 Sassari, Italy.

    • Fabio Busonero,
    • Francesco Cucca,
    • Andrea Maschio,
    • Eleonora Porcu &
    • Carlo Sidore
  69. Center for Advanced Studies, Research, and Development in Sardinia (CRS4), AGCT Program, Parco Scientifico e tecnologico della Sardegna, 09010 Pula, Italy.

    • Chris Jones &
    • Fred Reinier
  70. Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.

    • Yun Li
  71. University of Michigan Sequencing Core, University of Michigan, Ann Arbor, Michigan 48109, USA.

    • Robert Lyons
  72. National Institute on Aging, Laboratory of Genetics, Baltimore, Maryland 21224, USA.

    • David Schlessinger
  73. Department of Pediatrics, University of Montréal, Ste. Justine Hospital Research Centre, Montréal, Québec H3T 1C5, Canada.

    • Philip Awadalla &
    • Alan Hodgkinson
  74. Department of Biology, University of Puerto Rico, Mayagüez, Puerto Rico 00680, USA.

    • Taras K. Oleksyk &
    • Juan C. Martinez-Cruzado
  75. The University of Texas Health Science Center at Houston, Houston, Texas 77030, USA.

    • Yunxin Fu,
    • Xiaoming Liu &
    • Momiao Xiong
  76. Eccles Institute of Human Genetics, University of Utah School of Medicine, Salt Lake City, Utah 84112, USA.

    • Lynn Jorde &
    • David Witherspoon
  77. Department of Genetics, Rutgers University,The State University of New Jersey, Piscataway, New Jersey 08854, USA.

    • Jinchuan Xing
  78. Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, Washington 98195, USA.

    • Brian L. Browning
  79. Department of Computer Engineering, Bilkent University, TR-06800 Bilkent, Ankara, Turkey.

    • Can Alkan
  80. Department of Computer Science, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.

    • Iman Hajirasouliha
  81. Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77230, USA.

    • Ken Chen
  82. Department of Haematology, University of Cambridge and National Health Service Blood and Transplant, Cambridge CB2 1TN, UK.

    • Cornelis A. Albers
  83. Institute of Genetics and Biophysics, National Research Council (CNR), 80125 Naples, Italy.

    • Vincenza Colonna
  84. Program in Computational Biology and Bioinformatics, Yale University, New Haven, Connecticut 06520, USA.

    • Mark B. Gerstein,
    • Alexej Abyzov,
    • Jieming Chen,
    • Yao Fu,
    • Lukas Habegger,
    • Arif O. Harmanci,
    • Xinmeng Jasmine Mu &
    • Cristina Sisu
  85. Department of Computer Science, Yale University, New Haven, Connecticut 06520, USA.

    • Mark B. Gerstein
  86. Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520, USA.

    • Mark B. Gerstein,
    • Alexej Abyzov,
    • Suganthi Balasubramanian,
    • Mike Jin &
    • Ekta Khurana
  87. Department of Chemistry, Yale University, New Haven, Connecticut 06520, USA.

    • Declan Clarke
  88. Beyster Center for Genomics of Psychiatric Diseases, University of California, San Diego, La Jolla, California 92093, USA.

    • Jacob J. Michaelson
  89. US National Institutes of Health, National Human Genome Research Institute, 50 South Drive, Bethesda, Maryland 20892, USA.

    • Chris O’Sullivan
  90. Division of Allergy and Clinical Immunology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, USA.

    • Kathleen C. Barnes
  91. Coriell Institute for Medical Research, Camden, New Jersey 08103, USA.

    • Christine Beiswanger,
    • Neda Gharani &
    • Lorraine H. Toji
  92. Centre for Health, Law and Emerging Technologies, University of Oxford, Oxford OX3 7LF, UK.

    • Jane S. Kaye
  93. Genetic Alliance, London N1 3QP, UK.

    • Alastair Kent
  94. Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.

    • Rasika Mathias
  95. Department of Medical History and Bioethics, Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.

    • Pilar N. Ossorio
  96. University of Wisconsin Law School, Madison, Wisconsin 53706, USA.

    • Pilar N. Ossorio
  97. The Ethox Centre, Department of Public Health, University of Oxford, Old Road Campus, Oxford OX3 7LF, UK.

    • Michael Parker
  98. US National Institutes of Health, Center for Research on Genomics and Global Health, National Human Genome Research Institute, 12 South Drive, Bethesda, Maryland 20892, USA.

    • Charles N. Rotimi
  99. Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina 27708, USA.

    • Charmaine D. Royal
  100. Department of Genetics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.

    • Sarah Tishkoff
  101. Department of Animal Biology, Unit of Anthropology, University of Barcelona, 08028 Barcelona, Spain.

    • Marc Via
  102. Cancer and Immunogenetics Laboratory, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK.

    • Walter Bodmer
  103. Laboratory of Molecular Genetics, Institute of Biology, University of Antioquia, Medellín, Colombia.

    • Gabriel Bedoya
  104. Peking University Shenzhen Hospital, Shenzhen 518036, China.

    • Gao Yang
  105. Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China.

    • Chu Jia You
  106. Instituto de Biologia Molecular y Celular del Cancer, Centro de Investigacion del Cancer/IBMCC (CSIC-USAL), Institute of Biomedical Research of Salamanca (IBSAL) & Banco Nacional de ADN Carlos III, University of Salamanca, 37007 Salamanca, Spain.

    • Andres Garcia-Montero
  107. Instituto de Biologia Molecular y Celular del Cancer, Centro de Investigacion del Cancer/IBMCC (CSIC-USAL), Institute of Biomedical Research of Salamanca (IBSAL) & Cytometry Service and Department of Medicine, 37007 University of Salamanca, Salamanca, Spain.

    • Alberto Orfao
  108. Ponce School of Medicine and Health Sciences, Ponce, Puerto Rico 00716, USA.

    • Julie Dutil
  109. US National Institutes of Health, National Human Genome Research Institute, 5635 Fishers Lane, Bethesda, Maryland 20892, USA.

    • Lisa D. Brooks,
    • Adam L. Felsenfeld,
    • Jean E. McEwen,
    • Nicholas C. Clemm,
    • Mark S. Guyer &
    • Jane L. Peterson
  110. Wellcome Trust, Gibbs Building, 215 Euston Road, London NW1 2BE, UK.

    • Audrey Duncanson &
    • Michael Dunn
  111. Deceased.

    • Leena Peltonen

Consortia

  1. The 1000 Genomes Project Consortium

  2. (Participants are arranged by project role, then by institution alphabetically, and finally alphabetically within institutions except for Principal Investigators and Project Leaders, as indicated.)

  3. Corresponding Author

    • Gil A. McVean
  4. Steering committee

    • David M. Altshuler (Co-Chair),
    • Richard M. Durbin (Co-Chair),
    • Gonçalo R. Abecasis,
    • David R. Bentley,
    • Aravinda Chakravarti,
    • Andrew G. Clark,
    • Peter Donnelly,
    • Evan E. Eichler,
    • Paul Flicek,
    • Stacey B. Gabriel,
    • Richard A. Gibbs,
    • Eric D. Green,
    • Matthew E. Hurles,
    • Bartha M. Knoppers,
    • Jan O. Korbel,
    • Eric S. Lander,
    • Charles Lee,
    • Hans Lehrach,
    • Elaine R. Mardis,
    • Gabor T. Marth,
    • Gil A. McVean,
    • Deborah A. Nickerson,
    • Jeanette P. Schmidt,
    • Stephen T. Sherry,
    • Jun Wang &
    • Richard K. Wilson
  5. Production group:

  6. Baylor College of Medicine

    • Richard A. Gibbs (Principal Investigator),
    • Huyen Dinh,
    • Christie Kovar,
    • Sandra Lee,
    • Lora Lewis,
    • Donna Muzny,
    • Jeff Reid &
    • Min Wang
  7. BGI-Shenzhen

    • Jun Wang (Principal Investigator),
    • Xiaodong Fang,
    • Xiaosen Guo,
    • Min Jian,
    • Hui Jiang,
    • Xin Jin,
    • Guoqing Li,
    • Jingxiang Li,
    • Yingrui Li,
    • Zhuo Li,
    • Xiao Liu,
    • Yao Lu,
    • Xuedi Ma,
    • Zhe Su,
    • Shuaishuai Tai,
    • Meifang Tang,
    • Bo Wang,
    • Guangbiao Wang,
    • Honglong Wu,
    • Renhua Wu,
    • Ye Yin,
    • Wenwei Zhang,
    • Jiao Zhao,
    • Meiru Zhao,
    • Xiaole Zheng &
    • Yan Zhou
  8. Broad Institute of MIT and Harvard

    • Eric S. Lander (Principal Investigator),
    • David M. Altshuler,
    • Stacey B. Gabriel (Co-Chair) &
    • Namrata Gupta
  9. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator),
    • Laura Clarke,
    • Rasko Leinonen,
    • Richard E. Smith &
    • Xiangqun Zheng-Bradley
  10. Illumina

    • David R. Bentley (Principal Investigator),
    • Russell Grocock,
    • Sean Humphray,
    • Terena James &
    • Zoya Kingsbury
  11. Max Planck Institute for Molecular Genetics

    • Hans Lehrach (Principal Investigator),
    • Ralf Sudbrak (Project Leader),
    • Marcus W. Albrecht,
    • Vyacheslav S. Amstislavskiy,
    • Tatiana A. Borodina,
    • Matthias Lienhard,
    • Florian Mertes,
    • Marc Sultan,
    • Bernd Timmermann &
    • Marie-Laure Yaspo
  12. US National Institutes of Health

    • Stephen T. Sherry (Principal Investigator)
  13. University of Oxford

    • Gil A. McVean (Principal Investigator)
  14. Washington University in St Louis

    • Elaine R. Mardis (Co-Principal Investigator) (Co-Chair),
    • Richard K. Wilson (Co-Principal Investigator),
    • Lucinda Fulton,
    • Robert Fulton &
    • George M. Weinstock
  15. Wellcome Trust Sanger Institute

    • Richard M. Durbin (Principal Investigator),
    • Senduran Balasubramaniam,
    • John Burton,
    • Petr Danecek,
    • Thomas M. Keane,
    • Anja Kolb-Kokocinski,
    • Shane McCarthy,
    • James Stalker &
    • Michael Quail
  16. Analysis group:

  17. Affymetrix

    • Jeanette P. Schmidt (Principal Investigator),
    • Christopher J. Davies,
    • Jeremy Gollub,
    • Teresa Webster,
    • Brant Wong &
    • Yiping Zhan
  18. Albert Einstein College of Medicine

    • Adam Auton (Principal Investigator)
  19. Baylor College of Medicine

    • Richard A. Gibbs (Principal Investigator),
    • Fuli Yu (Project Leader),
    • Matthew Bainbridge,
    • Danny Challis,
    • Uday S. Evani,
    • James Lu,
    • Donna Muzny,
    • Uma Nagaswamy,
    • Jeff Reid,
    • Aniko Sabo,
    • Yi Wang &
    • Jin Yu
  20. BGI-Shenzhen

    • Jun Wang (Principal Investigator),
    • Lachlan J. M. Coin,
    • Lin Fang,
    • Xiaosen Guo,
    • Xin Jin,
    • Guoqing Li,
    • Qibin Li,
    • Yingrui Li,
    • Zhenyu Li,
    • Haoxiang Lin,
    • Binghang Liu,
    • Ruibang Luo,
    • Nan Qin,
    • Haojing Shao,
    • Bingqiang Wang,
    • Yinlong Xie,
    • Chen Ye,
    • Chang Yu,
    • Fan Zhang,
    • Hancheng Zheng &
    • Hongmei Zhu
  21. Boston College

    • Gabor T. Marth (Principal Investigator),
    • Erik P. Garrison,
    • Deniz Kural,
    • Wan-Ping Lee,
    • Wen Fung Leong,
    • Alistair N. Ward,
    • Jiantao Wu &
    • Mengyao Zhang
  22. Brigham and Women’s Hospital

    • Charles Lee (Principal Investigator),
    • Lauren Griffin,
    • Chih-Heng Hsieh,
    • Ryan E. Mills,
    • Xinghua Shi,
    • Marcin von Grotthuss &
    • Chengsheng Zhang
  23. Broad Institute of MIT and Harvard

    • Mark J. Daly (Principal Investigator),
    • Mark A. DePristo (Project Leader),
    • David M. Altshuler,
    • Eric Banks,
    • Gaurav Bhatia,
    • Mauricio O. Carneiro,
    • Guillermo del Angel,
    • Stacey B. Gabriel,
    • Giulio Genovese,
    • Namrata Gupta,
    • Robert E. Handsaker,
    • Chris Hartl,
    • Eric S. Lander,
    • Steven A. McCarroll,
    • James C. Nemesh,
    • Ryan E. Poplin,
    • Stephen F. Schaffner &
    • Khalid Shakir
  24. Cold Spring Harbor Laboratory

    • Seungtai C. Yoon (Principal Investigator),
    • Jayon Lihm &
    • Vladimir Makarov
  25. Dankook University

    • Hanjun Jin (Principal Investigator),
    • Wook Kim &
    • Ki Cheol Kim
  26. European Molecular Biology Laboratory

    • Jan O. Korbel (Principal Investigator) &
    • Tobias Rausch
  27. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator),
    • Kathryn Beal,
    • Laura Clarke,
    • Fiona Cunningham,
    • Javier Herrero,
    • William M. McLaren,
    • Graham R. S. Ritchie,
    • Richard E. Smith &
    • Xiangqun Zheng-Bradley
  28. Cornell University

    • Andrew G. Clark (Principal Investigator),
    • Srikanth Gottipati,
    • Alon Keinan &
    • Juan L. Rodriguez-Flores
  29. Harvard University

    • Pardis C. Sabeti (Principal Investigator),
    • Sharon R. Grossman,
    • Shervin Tabrizi &
    • Ridhi Tariyal
  30. Human Gene Mutation Database

    • David N. Cooper (Principal Investigator),
    • Edward V. Ball &
    • Peter D. Stenson
  31. Illumina

    • David R. Bentley (Principal Investigator),
    • Bret Barnes,
    • Markus Bauer,
    • R. Keira Cheetham,
    • Tony Cox,
    • Michael Eberle,
    • Sean Humphray,
    • Scott Kahn,
    • Lisa Murray,
    • John Peden &
    • Richard Shaw
  32. Leiden University Medical Center

    • Kai Ye (Principal Investigator)
  33. Louisiana State University

    • Mark A. Batzer (Principal Investigator),
    • Miriam K. Konkel &
    • Jerilyn A. Walker
  34. Massachusetts General Hospital

    • Daniel G. MacArthur (Principal Investigator) &
    • Monkol Lek
  35. Max Planck Institute for Molecular Genetics

    • Sudbrak (Project Leader),
    • Vyacheslav S. Amstislavskiy &
    • Ralf Herwig
  36. Pennsylvania State University

    • Mark D. Shriver (Principal Investigator)
  37. Stanford University

    • Carlos D. Bustamante (Principal Investigator),
    • Jake K. Byrnes,
    • Francisco M. De La Vega,
    • Simon Gravel,
    • Eimear E. Kenny,
    • Jeffrey M. Kidd,
    • Phil Lacroute,
    • Brian K. Maples,
    • Andres Moreno-Estrada &
    • Fouad Zakharia
  38. Tel-Aviv University

    • Eran Halperin (Principal Investigator) &
    • Yael Baran
  39. Translational Genomics Research Institute

    • David W. Craig (Principal Investigator),
    • Alexis Christoforides,
    • Nils Homer,
    • Tyler Izatt,
    • Ahmet A. Kurdoglu,
    • Shripad A. Sinari &
    • Kevin Squire
  40. US National Institutes of Health

    • Stephen T. Sherry (Principal Investigator) &
    • Chunlin Xiao
  41. University of California, San Diego

    • Jonathan Sebat (Principal Investigator),
    • Vineet Bafna &
    • Kenny Ye
  42. University of California, San Francisco

    • Esteban G. Burchard (Principal Investigator),
    • Ryan D. Hernandez (Principal Investigator) &
    • Christopher R. Gignoux
  43. University of California, Santa Cruz

    • David Haussler (Principal Investigator),
    • Sol J. Katzman &
    • W. James Kent
  44. University of Chicago

    • Bryan Howie
  45. University College London

    • Andres Ruiz-Linares (Principal Investigator)
  46. University of Geneva

    • Emmanouil T. Dermitzakis (Principal Investigator) &
    • Tuuli Lappalainen
  47. University of Maryland School of Medicine

    • Scott E. Devine (Principal Investigator),
    • Xinyue Liu,
    • Ankit Maroo &
    • Luke J. Tallon
  48. University of Medicine and Dentistry of New Jersey

    • Jeffrey A. Rosenfeld (Principal Investigator) &
    • Leslie P. Michelson
  49. University of Michigan

    • Gonçalo R. Abecasis (Principal Investigator) (Co-Chair),
    • Hyun Min Kang (Project Leader),
    • Paul Anderson,
    • Andrea Angius,
    • Abigail Bigham,
    • Tom Blackwell,
    • Fabio Busonero,
    • Francesco Cucca,
    • Christian Fuchsberger,
    • Chris Jones,
    • Goo Jun,
    • Yun Li,
    • Robert Lyons,
    • Andrea Maschio,
    • Eleonora Porcu,
    • Fred Reinier,
    • Serena Sanna,
    • David Schlessinger,
    • Carlo Sidore,
    • Adrian Tan &
    • Mary Kate Trost
  50. University of Montréal

    • Philip Awadalla (Principal Investigator) &
    • Alan Hodgkinson
  51. University of Oxford

    • Gerton Lunter (Principal Investigator),
    • Gil A. McVean (Principal Investigator) (Co-Chair),
    • Jonathan L. Marchini (Principal Investigator),
    • Simon Myers (Principal Investigator),
    • Claire Churchhouse,
    • Olivier Delaneau,
    • Anjali Gupta-Hinch,
    • Zamin Iqbal,
    • Iain Mathieson,
    • Andy Rimmer &
    • Dionysia K. Xifara
  52. University of Puerto Rico

    • Taras K. Oleksyk (Principal Investigator)
  53. University of Texas Health Sciences Center at Houston

    • Yunxin Fu (Principal Investigator),
    • Xiaoming Liu &
    • Momiao Xiong
  54. University of Utah

    • Lynn Jorde (Principal Investigator),
    • David Witherspoon &
    • Jinchuan Xing
  55. University of Washington

    • Evan E. Eichler (Principal Investigator),
    • Brian L. Browning (Principal Investigator),
    • Can Alkan,
    • Iman Hajirasouliha,
    • Fereydoun Hormozdiari,
    • Arthur Ko &
    • Peter H. Sudmant
  56. Washington University in St Louis

    • Elaine R. Mardis (Co-Principal Investigator),
    • Ken Chen,
    • Asif Chinwalla,
    • Li Ding,
    • David Dooling,
    • Daniel C. Koboldt,
    • Michael D. McLellan,
    • John W. Wallis,
    • Michael C. Wendl &
    • Qunyuan Zhang
  57. Wellcome Trust Sanger Institute

    • Richard M. Durbin (Principal Investigator),
    • Matthew E. Hurles (Principal Investigator),
    • Chris Tyler-Smith (Principal Investigator),
    • Cornelis A. Albers,
    • Qasim Ayub,
    • Senduran Balasubramaniam,
    • Yuan Chen,
    • Alison J. Coffey,
    • Vincenza Colonna,
    • Petr Danecek,
    • Ni Huang,
    • Luke Jostins,
    • Thomas M. Keane,
    • Heng Li,
    • Shane McCarthy,
    • Aylwyn Scally,
    • James Stalker,
    • Klaudia Walter,
    • Yali Xue &
    • Yujun Zhang
  58. Yale University

    • Mark B. Gerstein (Principal Investigator),
    • Alexej Abyzov,
    • Suganthi Balasubramanian,
    • Jieming Chen,
    • Declan Clarke,
    • Yao Fu,
    • Lukas Habegger,
    • Arif O. Harmanci,
    • Mike Jin,
    • Ekta Khurana,
    • Xinmeng Jasmine Mu &
    • Cristina Sisu
  59. Structural variation group:

  60. BGI-Shenzhen

    • Yingrui Li,
    • Ruibang Luo &
    • Hongmei Zhu
  61. Brigham and Women’s Hospital

    • Charles Lee (Principal Investigator) (Co-Chair),
    • Lauren Griffin,
    • Chih-Heng Hsieh,
    • Ryan E. Mills,
    • Xinghua Shi,
    • Marcin von Grotthuss &
    • Chengsheng Zhang
  62. Boston College

    • Gabor T. Marth (Principal Investigator),
    • Erik P. Garrison,
    • Deniz Kural,
    • Wan-Ping Lee,
    • Alistair N. Ward,
    • Jiantao Wu &
    • Mengyao Zhang
  63. Broad Institute of MIT and Harvard

    • Steven A. McCarroll (Project Leader),
    • David M. Altshuler,
    • Eric Banks,
    • Guillermo del Angel,
    • Giulio Genovese,
    • Robert E. Handsaker,
    • Chris Hartl,
    • James C. Nemesh &
    • Khalid Shakir
  64. Cold Spring Harbor Laboratory

    • Seungtai C. Yoon (Principal Investigator),
    • Jayon Lihm &
    • Vladimir Makarov
  65. Cornell University

    • Jeremiah Degenhardt
  66. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator),
    • Laura Clarke,
    • Richard E. Smith &
    • Xiangqun Zheng-Bradley
  67. European Molecular Biology Laboratory

    • Jan O. Korbel (Principal Investigator) (Co-Chair),
    • Tobias Rausch &
    • Adrian M. Stütz
  68. Illumina

    • David R. Bentley (Principal Investigator),
    • Bret Barnes,
    • R. Keira Cheetham,
    • Michael Eberle,
    • Sean Humphray,
    • Scott Kahn,
    • Lisa Murray &
    • Richard Shaw
  69. Leiden University Medical Center

    • Kai Ye (Principal Investigator)
  70. Louisiana State University

    • Mark A. Batzer (Principal Investigator),
    • Miriam K. Konkel &
    • Jerilyn A. Walker
  71. Stanford University

    • Phil Lacroute
  72. Translational Genomics Research Institute

    • David W. Craig (Principal Investigator) &
    • Nils Homer
  73. US National Institutes of Health

    • Deanna Church &
    • Chunlin Xiao
  74. University of California, San Diego

    • Jonathan Sebat (Principal Investigator),
    • Vineet Bafna,
    • Jacob J. Michaelson &
    • Kenny Ye
  75. University of Maryland School of Medicine

    • Scott E. Devine (Principal Investigator),
    • Xinyue Liu,
    • Ankit Maroo &
    • Luke J. Tallon
  76. University of Oxford

    • Gerton Lunter (Principal Investigator),
    • Gil A. McVean (Principal Investigator) &
    • Zamin Iqbal
  77. University of Utah

    • David Witherspoon &
    • Jinchuan Xing
  78. University of Washington

    • Evan E. Eichler (Principal Investigator) (Co-Chair),
    • Can Alkan,
    • Iman Hajirasouliha,
    • Fereydoun Hormozdiari,
    • Arthur Ko &
    • Peter H. Sudmant
  79. Washington University in St Louis

    • Ken Chen,
    • Asif Chinwalla,
    • Li Ding,
    • Michael D. McLellan &
    • John W. Wallis
  80. Wellcome Trust Sanger Institute

    • Matthew E. Hurles (Principal Investigator) (Co-Chair),
    • Ben Blackburne,
    • Heng Li,
    • Sarah J. Lindsay,
    • Zemin Ning,
    • Aylwyn Scally,
    • Klaudia Walter &
    • Yujun Zhang
  81. Yale University

    • Mark B. Gerstein (Principal Investigator),
    • Alexej Abyzov,
    • Jieming Chen,
    • Declan Clarke,
    • Ekta Khurana,
    • Xinmeng Jasmine Mu &
    • Cristina Sisu
  82. Exome group:

  83. Baylor College of Medicine

    • Richard A. Gibbs (Principal Investigator) (Co-Chair),
    • Fuli Yu (Project Leader),
    • Matthew Bainbridge,
    • Danny Challis,
    • Uday S. Evani,
    • Christie Kovar,
    • Lora Lewis,
    • James Lu,
    • Donna Muzny,
    • Uma Nagaswamy,
    • Jeff Reid,
    • Aniko Sabo &
    • Jin Yu
  84. BGI-Shenzhen

    • Xiaosen Guo,
    • Yingrui Li &
    • Renhua Wu
  85. Boston College

    • Gabor T. Marth (Principal Investigator) (Co-Chair),
    • Erik P. Garrison,
    • Wen Fung Leong &
    • Alistair N. Ward
  86. Broad Institute of MIT and Harvard

    • Guillermo del Angel,
    • Mark A. DePristo,
    • Stacey B. Gabriel,
    • Namrata Gupta,
    • Chris Hartl &
    • Ryan E. Poplin
  87. Cornell University

    • Andrew G. Clark (Principal Investigator) &
    • Juan L. Rodriguez-Flores
  88. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator),
    • Laura Clarke,
    • Richard E. Smith &
    • Xiangqun Zheng-Bradley
  89. Massachusetts General Hospital

    • Daniel G. MacArthur (Principal Investigator)
  90. Stanford University

    • Carlos D. Bustamante (Principal Investigator) &
    • Simon Gravel
  91. Translational Genomics Research Institute

    • David W. Craig (Principal Investigator),
    • Alexis Christoforides,
    • Nils Homer &
    • Tyler Izatt
  92. US National Institutes of Health

    • Stephen T. Sherry (Principal Investigator) &
    • Chunlin Xiao
  93. University of Geneva

    • Emmanouil T. Dermitzakis (Principal Investigator)
  94. University of Michigan

    • Gonçalo R. Abecasis (Principal Investigator) &
    • Hyun Min Kang
  95. University of Oxford

    • Gil A. McVean (Principal Investigator)
  96. Washington University in St Louis

    • Elaine R. Mardis (Principal Investigator),
    • David Dooling,
    • Lucinda Fulton,
    • Robert Fulton &
    • Daniel C. Koboldt
  97. Wellcome Trust Sanger Institute

    • Richard M. Durbin (Principal Investigator),
    • Senduran Balasubramaniam,
    • Thomas M. Keane,
    • Shane McCarthy &
    • James Stalker
  98. Yale University

    • Mark B. Gerstein (Principal Investigator),
    • Suganthi Balasubramanian &
    • Lukas Habegger
  99. Functional interpretation group:

  100. Boston College

    • Erik P. Garrison
  101. Baylor College of Medicine

    • Richard A. Gibbs (Principal Investigator),
    • Matthew Bainbridge,
    • Donna Muzny,
    • Fuli Yu &
    • Jin Yu
  102. Broad Institute of MIT and Harvard

    • Guillermo del Angel &
    • Robert E. Handsaker
  103. Cold Spring Harbor Laboratory

    • Vladimir Makarov
  104. Cornell University

    • Juan L. Rodriguez-Flores
  105. Dankook University

    • Hanjun Jin (Principal Investigator),
    • Wook Kim &
    • Ki Cheol Kim
  106. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator),
    • Kathryn Beal,
    • Laura Clarke,
    • Fiona Cunningham,
    • Javier Herrero,
    • William M. McLaren,
    • Graham R. S. Ritchie &
    • Xiangqun Zheng-Bradley
  107. Harvard University

    • Shervin Tabrizi
  108. Massachusetts General Hospital

    • Daniel G. MacArthur (Principal Investigator) &
    • Monkol Lek
  109. Stanford University

    • Carlos D. Bustamante (Principal Investigator) &
    • Francisco M. De La Vega
  110. Translational Genomics Research Institute

    • David W. Craig (Principal Investigator) &
    • Ahmet A. Kurdoglu
  111. University of Geneva

    • Tuuli Lappalainen
  112. University of Medicine and Dentistry of New Jersey

    • Jeffrey A. Rosenfeld (Principal Investigator) &
    • Leslie P. Michelson
  113. University of Montréal

    • Philip Awadalla (Principal Investigator) &
    • Alan Hodgkinson
  114. University of Oxford

    • Gil A. McVean (Principal Investigator)
  115. Washington University in St Louis

    • Ken Chen
  116. Wellcome Trust Sanger Institute

    • Chris Tyler-Smith (Principal Investigator) (Co-Chair),
    • Yuan Chen,
    • Vincenza Colonna,
    • Adam Frankish,
    • Jennifer Harrow &
    • Yali Xue
  117. Yale University

    • Mark B. Gerstein (Principal Investigator) (Co-Chair),
    • Alexej Abyzov,
    • Suganthi Balasubramanian,
    • Jieming Chen,
    • Declan Clarke,
    • Yao Fu,
    • Arif O. Harmanci,
    • Mike Jin,
    • Ekta Khurana,
    • Xinmeng Jasmine Mu &
    • Cristina Sisu
  118. Data coordination centre group:

  119. Baylor College of Medicine

    • Richard A. Gibbs (Principal Investigator),
    • Gerald Fowler,
    • Walker Hale,
    • Divya Kalra,
    • Christie Kovar,
    • Donna Muzny &
    • Jeff Reid
  120. BGI-Shenzhen

    • Jun Wang (Principal Investigator),
    • Xiaosen Guo,
    • Guoqing Li,
    • Yingrui Li &
    • Xiaole Zheng
  121. Broad Institute of MIT and Harvard

    • David M. Altshuler
  122. European Bioinformatics Institute

    • Paul Flicek (Principal Investigator) (Co-Chair),
    • Laura Clarke (Project Leader),
    • Jonathan Barker,
    • Gavin Kelman,
    • Eugene Kulesha,
    • Rasko Leinonen,
    • William M. McLaren,
    • Rajesh Radhakrishnan,
    • Asier Roa,
    • Dmitriy Smirnov,
    • Richard E. Smith,
    • Ian Streeter,
    • Iliana Toneva,
    • Brendan Vaughan &
    • Xiangqun Zheng-Bradley
  123. Illumina

    • David R. Bentley (Principal Investigator),
    • Tony Cox,
    • Sean Humphray &
    • Scott Kahn
  124. Max Planck Institute for Molecular Genetics

    • Ralf Sudbrak (Project Leader),
    • Marcus W. Albrecht &
    • Matthias Lienhard
  125. Translational Genomics Research Institute

    • David W. Craig (Principal Investigator),
    • Tyler Izatt &
    • Ahmet A. Kurdoglu
  126. US National Institutes of Health

    • Stephen T. Sherry (Principal Investigator) (Co-Chair),
    • Victor Ananiev,
    • Zinaida Belaia,
    • Dimitriy Beloslyudtsev,
    • Nathan Bouk,
    • Chao Chen,
    • Deanna Church,
    • Robert Cohen,
    • Charles Cook,
    • John Garner,
    • Timothy Hefferon,
    • Mikhail Kimelman,
    • Chunlei Liu,
    • John Lopez,
    • Peter Meric,
    • Chris O’Sullivan,
    • Yuri Ostapchuk,
    • Lon Phan,
    • Sergiy Ponomarov,
    • Valerie Schneider,
    • Eugene Shekhtman,
    • Karl Sirotkin,
    • Douglas Slotta,
    • Chunlin Xiao &
    • Hua Zhang
  127. University of California, Santa Cruz

    • David Haussler (Principal Investigator)
  128. University of Michigan

    • Gonçalo R. Abecasis (Principal Investigator)
  129. University of Oxford

    • Gil A. McVean (Principal Investigator)
  130. University of Washington

    • Can Alkan &
    • Arthur Ko
  131. Washington University in St Louis

    • David Dooling
  132. Wellcome Trust Sanger Institute

    • Richard M. Durbin (Principal Investigator),
    • Senduran Balasubramaniam,
    • Thomas M. Keane,
    • Shane McCarthy &
    • James Stalker
  133. Samples and ELSI group

    • Aravinda Chakravarti (Co-Chair),
    • Bartha M. Knoppers (Co-Chair),
    • Gonçalo R. Abecasis,
    • Kathleen C. Barnes,
    • Christine Beiswanger,
    • Esteban G. Burchard,
    • Carlos D. Bustamante,
    • Hongyu Cai,
    • Hongzhi Cao,
    • Richard M. Durbin,
    • Neda Gharani,
    • Richard A. Gibbs,
    • Christopher R. Gignoux,
    • Simon Gravel,
    • Brenna Henn,
    • Danielle Jones,
    • Lynn Jorde,
    • Jane S. Kaye,
    • Alon Keinan,
    • Alastair Kent,
    • Angeliki Kerasidou,
    • Yingrui Li,
    • Rasika Mathias,
    • Gil A. McVean,
    • Andres Moreno-Estrada,
    • Pilar N. Ossorio,
    • Michael Parker,
    • David Reich,
    • Charles N. Rotimi,
    • Charmaine D. Royal,
    • Karla Sandoval,
    • Yeyang Su,
    • Ralf Sudbrak,
    • Zhongming Tian,
    • Bernd Timmermann,
    • Sarah Tishkoff,
    • Lorraine H. Toji,
    • Chris Tyler-Smith,
    • Marc Via,
    • Yuhong Wang,
    • Huanming Yang,
    • Ling Yang &
    • Jiayong Zhu
  134. Sample collection:

  135. British from England and Scotland (GBR)

    • Walter Bodmer
  136. Colombians in Medellín, Colombia (CLM)

    • Gabriel Bedoya &
    • Andres Ruiz-Linares
  137. Han Chinese South (CHS)

    • Cai Zhi Ming,
    • Gao Yang &
    • Chu Jia You
  138. Finnish in Finland (FIN)

    • Leena Peltonen
  139. Iberian populations in Spain (IBS)

    • Andres Garcia-Montero &
    • Alberto Orfao
  140. Puerto Ricans in Puerto Rico (PUR)

    • Julie Dutil,
    • Juan C. Martinez-Cruzado &
    • Taras K. Oleksyk
  141. Scientific management

    • Lisa D. Brooks,
    • Adam L. Felsenfeld,
    • Jean E. McEwen,
    • Nicholas C. Clemm,
    • Audrey Duncanson,
    • Michael Dunn,
    • Eric D. Green,
    • Mark S. Guyer &
    • Jane L. Peterson
  142. Writing group

    • Goncalo R. Abecasis,
    • Adam Auton,
    • Lisa D. Brooks,
    • Mark A. DePristo,
    • Richard M. Durbin,
    • Robert E. Handsaker,
    • Hyun Min Kang,
    • Gabor T. Marth &
    • Gil A. McVean

Contributions

Details of author contributions can be found in the author list.

Competing financial interests

The authors declare competing financial interests: P.Aw. is an adviser for Ancestry.com; E.T.D. is an adviser for DNAnexus; A.Cha. is on the scientific advisory board for Affymetrix; C.D.B. is on the scientific advisory boards for Personalis, Inc., Ancestry.com, Locus Development and the 23andMe.com project ‘Roots into the future’; D.H. is on the scientific advisory board for Pacific Biosciences; E.E.E. is on the scientific advisory boards for Pacific Biosciences, Inc., SynapDx Corp, and DNAnexus, Inc.; P.F. is on the scientific advisory board for Omicia, Inc.; C.Le. is on the scientific advisory board for BioNano Genomics and is a senior scientific adviser for Samsung; E.R.M. holds shares in Life Technologies and serves on Illumina’s Speaker’s Bureau; R.A.G. and D.M. hold a co-investment with Life Technologies; J.K.B., C.J.D., J.Go., J.P.S., T.W., B.Wo. and Y.Zha. work at Affymetrix; J.K.B. works at Ancestry.com; N.Ho. works at Life Technologies; F.M.D. used to work and hold shares at Life Technologies; W.J.K. works at Kent Informatics; B.Ba., M.Bau., D.R.B., R.K.C., T.C., M.E., S.H., S.K., L.M., J.P. and R.Sh. work at Illumina.

Corresponding author

Correspondence to:

All primary data, alignments, individual call sets, consensus call sets, integrated haplotypes with genotype likelihoods and supporting data including details of validation are available from the project website (http://www.1000genomes.org). Variant and haplotypes for specific genomic regions and specific samples can be viewed and downloaded through the project browser (http://browser.1000genomes.org/).Common project variants with no known medical impact have been compiled by dbSNP for filtering (http://www.ncbi.nlm.nih.gov/variation/docs/human_variation_vcf/).

Author details

    Supplementary information

    PDF files

    1. Supplementary Information (4.4M)

      This fie contains Supplementary Text and Data 1-11, Supplementary References, Supplementary Tables 1-15 and Supplementary Figures 1-15 (see Contents for details).

    Additional data