Abstract
Large data sets on human genetic variation have been collected recently, but their usefulness for learning about history and natural selection has been limited by biases in the ways polymorphisms were chosen. We report large subsets of SNPs from the International HapMap Project1,2 that allow us to overcome these biases and to provide accurate measurement of a quantity of crucial importance for understanding genetic variation: the allele frequency spectrum. Our analysis shows that East Asian and northern European ancestors shared the same population bottleneck expanding out of Africa but that both also experienced more recent genetic drift, which was greater in East Asians.
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Acknowledgements
We thank D. Altshuler, M. Bernstein, A. Keinan, E. Lander, M. Mandel, M. Mirazon Lahr, A. Price, M. Przeworski, S. Schaffner, C. Stringer and B. Weir for discussions, comments and assistance with stages of this study. We are grateful to G. Marth for sharing the multi-epoch model source code with us. Orangutan sequence traces were produced by the Genome Sequencing Center at Washington University School of Medicine (ftp://ftp.ncbi.nih.gov/pub/TraceDB/pongo_pygmaeus_abelii); we thank R. Wilson for permission to use these data. Sequence traces for the human ABC libraries used in this study were produced by Agencourt Biosciences Corporation and were obtained from ftp://ftp.ncbi.nih.gov/pub/TraceDB/homo_sapiens; we thank D. Smith and E. Eichler for permission to use these data. A.K. was supported by the Rothschild fellowship from Yad Hanadiv foundation. J.C.M. was supported by the Intramural Research Program of the National Human Genome Research Institute, National Institutes of Health (NIH). N.P. was supported by a career transition award from the NIH. D.R. was supported by NIH grant U01 HG004168 and a Burroughs Wellcome Career Development Award in the Biomedical Sciences.
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Keinan, A., Mullikin, J., Patterson, N. et al. Measurement of the human allele frequency spectrum demonstrates greater genetic drift in East Asians than in Europeans. Nat Genet 39, 1251–1255 (2007). https://doi.org/10.1038/ng2116
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DOI: https://doi.org/10.1038/ng2116