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Promoter regions of many neural- and nutrition-related genes have experienced positive selection during human evolution

Nature Genetics volume 39, pages 1140–1144 (2007)Cite this article

Abstract

Surveys of protein-coding sequences for evidence of positive selection in humans or chimpanzees have flagged only a few genes known to function in neural or nutritional processes1,2,3,4,5, despite pronounced differences between humans and chimpanzees in behavior, cognition and diet6,7,8. It may be that most such differences are due to changes in gene regulation rather than protein structure9. Here, we present the first survey of promoter (5′-flanking) regions, which are rich in cis-regulatory sequences, for evidence of positive selection in humans. Our results indicate that positive selection has targeted the regulation of many genes known to be involved in neural development and function, both in the brain and elsewhere in the nervous system, and in nutrition, particularly in glucose metabolism.

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Figure 1: Genes and models.
Figure 2: Positive selection in chimpanzees versus humans.

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Acknowledgements

We thank J. Pavisic and T. Severson for assistance with gene annotations; G. Barber, M. Diekhans, W. Kent, S. Kosakovsky Pond and W. Miller for advice about their software; F. Hsu, K. Rosenbloom and A. Zweig for advice about UCSC resources and J. Horvath, J. Pritchard, M. Turelli, H. Willard and members of the G. Wray laboratory for comments on the manuscript. Most of the computations were performed on the Duke Shared Cluster Resource, which is maintained by the Duke Center for Computational Science, Engineering and Medicine. This research was supported by the Duke Institute for Genome Sciences and Policy and a US National Science Foundation Postdoctoral Fellowship in Biological Informatics to R.H. (grant number 0434655).

Author information

Author notes

  1. Ralph Haygood and Olivier Fedrigo: These authors contributed equally to this work.

Authors and Affiliations

  1. Biology Department, Duke University, Durham, 27708, North Carolina, USA

    Ralph Haygood, Olivier Fedrigo, Brian Hanson, Ken-Daigoro Yokoyama & Gregory A Wray

  2. Institute for Genome Sciences and Policy, Duke University, Durham, 27708, North Carolina, USA

    Olivier Fedrigo & Gregory A Wray

Authors
  1. Ralph Haygood
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  2. Olivier Fedrigo
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  3. Brian Hanson
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  4. Ken-Daigoro Yokoyama
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  5. Gregory A Wray
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Correspondence to Ralph Haygood.

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The authors declare no competing financial interests.

Supplementary information

Supplementary Table 1

A fuller presentation of our models. (XLS 38 kb)

Supplementary Table 2

Basic results, human lineage, passing cutoffs. (XLS 2487 kb)

Supplementary Table 3

Basic results, human lineage, failing cutoffs. (XLS 1608 kb)

Supplementary Table 4

Basic results, chimpanzee lineage, passing cutoffs. (XLS 2480 kb)

Supplementary Table 5

Basic results, chimpanzee lineage, failing cutoffs. (XLS 1599 kb)

Supplementary Table 6

Further analyses of PANTHER biological process categories. (XLS 59 kb)

Supplementary Text and Figures

Supplementary Discussion (PDF 472 kb)

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Haygood, R., Fedrigo, O., Hanson, B. et al. Promoter regions of many neural- and nutrition-related genes have experienced positive selection during human evolution. Nat Genet 39, 1140–1144 (2007). https://doi.org/10.1038/ng2104

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