Cited by 411Genetic Associations and EpidemiologyGenetic and phenotypic traits in livestockGenetics and Physical Performance

Signatures of negative selection in the genetic architecture of human complex traits

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Zeng, Jian, de Vlaming, Ronald, Wu, Yang, Robinson, Matthew R., Lloyd-Jones, Luke R., Yengo, Loic, Yap, Chloe X., Xue, Angli +10 more·2018·Nature Genetics

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Abstract

We develop a Bayesian mixed linear model that simultaneously estimates single-nucleotide polymorphism (SNP)-based heritability, polygenicity (proportion of SNPs with nonzero effects), and the relationship between SNP effect size and minor allele frequency for complex traits in conventionally unrelated individuals using genome-wide SNP data. We apply the method to 28 complex traits in the UK Biobank data (N = 126,752) and show that on average, 6% of SNPs have nonzero effects, which in total explain 22% of phenotypic variance. We detect significant (P < 0.05/28) signatures of natural selection in the genetic architecture of 23 traits, including reproductive, cardiovascular, and anthropometric traits, as well as educational attainment. The significant estimates of the relationship between effect size and minor allele frequency in complex traits are consistent with a model of negative (or purifying) selection, as confirmed by forward simulation. We conclude that negative selection acts pervasively on the genetic variants associated with human complex traits. BayesS estimates SNP-based heritability, polygenicity, and the relationship between effect size and minor allele frequency using genome-wide SNP data. Applying BayesS to UK Biobank data identifies signatures of natural selection for 23 complex traits.

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  • Genomic features related to natural selection are enriched for loci associated with complex traits.

    “Genomic features related to natural selection are enriched for loci associated with complex traits [1, 7–9].”

    From Denisovan and Neanderthal archaic introgression differentially impacted the genetics of complex traits in modern populations (2022) · cites this paper as [7]

    The Discussion reports signatures of natural selection on variants associated with complex traits, supporting a connection between selection and trait-associated loci. It does not establish that genomic features related to selection are enriched for those loci; its analysis concerns the relationship between SNP effects and allele frequency, not enrichment in genomic features. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Background selection appears to play a primary role in shaping the highly polygenic architecture of human traits and diseases.

    “In particular, background selection (i.e., the selective removal of deleterious alleles across the genome) appears to play a primary role in shaping the highly polygenic architecture of human traits and diseases [1, 7–9].”

    From Denisovan and Neanderthal archaic introgression differentially impacted the genetics of complex traits in modern populations (2022) · cites this paper as [7]

    The Discussion (page not provided) reports signatures of natural selection in 23 of 28 complex traits and a high degree of polygenicity. The paper identifies the relevant process as negative selection, but these passages do not establish that background selection specifically plays a primary role in shaping the architecture of human traits and diseases. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The relative contributions of common and rare variants indicate that for many traits, particularly those with post-reproductive onset, purifying selection has had only limited effect.

    “The relative contributions of common and rare variants indicate that, for many traits, particularly those with post-reproductive onset, purifying selection has had only limited effect45,56.”

    From A brief history of human disease genetics (2020) · cites this paper as [56]

  • Common genetic variants generally have small effects on disease risk (OR <1.15), while rare variants typically have larger effect sizes (>2.0), are more likely deleterious, and tend to be removed by natural selection.

    “Given what we know now, common variants generally have small effects on disease risk (OR <1.15), and rare variants typically have larger effect sizes (>2.0), are more likely to be deleterious, and tend to be removed by natural selection (Fu et al., 2013; Nelson et al., 2012; Zeng et al., 2018).”

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Authors
Zeng, J., de Vlaming, R., Wu, Y., Robinson, M. R., Lloyd-Jones, L. R., Yengo, L., Yap, C. X., Xue, A., Sidorenko, J., McRae, A. F., Powell, J. E., Montgomery, G. W., Metspalu, A., Esko, T., Gibson, G., Wray, N. R., Visscher, P. M., & Yang, J.
Affiliations
  • The University of Queensland (AU)
  • University of Tartu (EE)
  • Georgia Institute of Technology (US)
Corresponding author
Yang, Jian
Venue
Nature Genetics
Published
2018-04-16
Volume
50
Issue
5
Pages
746-753
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2797293309
Cited by
391
References
99
Citations by year
2026: 38 · 2025: 51 · 2024: 43 · 2023: 50 · 2022: 46 · 2021: 63 · 2020: 42 · 2019: 30 · 2018: 23 · 2017: 4
FWCI
24.17
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion, other-oa)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • VU Research Portal (publishedVersion, other-oa)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • University of Queensland
  • National Institutes of Health (GM 099568, AG042568)
  • Medical Research Council (1107258, 1113400, 1078037, 1078901, MC_PC_17228)
  • Australian Research Council (DP160103860, DP160101343, DP160102400, 1046880, 1113400, DP160101056)
  • National Health and Medical Research Council (1083656, 1078399, 1113400, 1078901, 1107258, 1078037, 1046880)
  • National Institute of Mental Health (R01MH100141)
  • National Institute of General Medical Sciences (P01GM099568)
  • National Institute of Environmental Health Sciences (R21ES025052)
  • H2020 European Research Council (647648)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Physical Performance
Keywords
negative selection, purifying selection, genetic architecture, complex traits, polygenicity, SNP-based heritability, natural selection signatures, educational attainment, anthropometric traits, cardiovascular traits, reproductive traits, UK Biobank
MeSH terms
Bayes Theorem, Gene Frequency, Genotype, Humans, Models, Genetic, Phenotype, Selection, Genetic, Linear Models, Quantitative Trait, Heritable, Multifactorial Inheritance, Polymorphism, Single Nucleotide, Genome-Wide Association Study

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