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Meta-analysis of the heritability of human traits based on fifty years of twin studies
- Tinca J C Polderman1 na1,
- Beben Benyamin2 na1,
- Christiaan A de Leeuw1,3,
- Patrick F Sullivan4,5,6,
- Arjen van Bochoven7,
- Peter M Visscher2,8 na2 &
- …
- Danielle Posthuma ORCID:orcid.org/0000-0001-7582-23651,9 na2
Nature Geneticsvolume 47, pages702–709 (2015)Cite this article
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Abstract
Despite a century of research on complex traits in humans, the relative importance and specific nature of the influences of genes and environment on human traits remain controversial. We report a meta-analysis of twin correlations and reported variance components for 17,804 traits from 2,748 publications including 14,558,903 partly dependent twin pairs, virtually all published twin studies of complex traits. Estimates of heritability cluster strongly within functional domains, and across all traits the reported heritability is 49%. For a majority (69%) of traits, the observed twin correlations are consistent with a simple and parsimonious model where twin resemblance is solely due to additive genetic variation. The data are inconsistent with substantial influences from shared environment or non-additive genetic variation. This study provides the most comprehensive analysis of the causes of individual differences in human traits thus far and will guide future gene-mapping efforts. All the results can be visualized using the MaTCH webtool.
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Acknowledgements
We would like to thank M. Frantsen, M.P. Roeling, R. Lee and D.M. DeCristo for their contribution to collecting the full texts of selected twin studies and data entry. This work was funded by the Netherlands Organization for Scientific Research (NWO VICI 453-14-005, NWO Complexity 645-000-003), by the Australian Research Council (DP130102666) and by the Australian National Health and Medical Research Council (APP613601).
Author information
Tinca J C Polderman and Beben Benyamin: These authors contributed equally to this work.
Peter M Visscher and Danielle Posthuma: These authors jointly supervised this work.
Authors and Affiliations
Department of Complex Trait Genetics, VU University, Center for Neurogenomics and Cognitive Research, Amsterdam, the Netherlands
Tinca J C Polderman, Christiaan A de Leeuw & Danielle Posthuma
Queensland Brain Institute, University of Queensland, Brisbane, Queensland, Australia
Beben Benyamin & Peter M Visscher
Institute for Computing and Information Sciences, Radboud University Nijmegen, Nijmegen, the Netherlands
Christiaan A de Leeuw
Department of Genetics, Center for Psychiatric Genomics, University of North Carolina, Chapel Hill, North Carolina, USA
Patrick F Sullivan
Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, USA
Patrick F Sullivan
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
Patrick F Sullivan
Faculty of Sciences, VU University, Amsterdam, the Netherlands
Arjen van Bochoven
University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Queensland, Australia
Peter M Visscher
Department of Clinical Genetics, VU University Medical Center, Neuroscience Campus Amsterdam, Amsterdam, the Netherlands
Danielle Posthuma
- Tinca J C Polderman
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- Beben Benyamin
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- Christiaan A de Leeuw
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- Patrick F Sullivan
Search author on:PubMed Google Scholar
- Arjen van Bochoven
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- Peter M Visscher
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- Danielle Posthuma
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Contributions
D.P., B.B., P.F.S. and P.M.V. performed the analyses. D.P. conceived the study. D.P., T.J.C.P. and P.M.V. designed the study. T.J.C.P. and D.P. collected and entered the data. D.P. and P.F.S. categorized traits according to standard classifications. A.v.B. and C.A.d.L. checked data entries, and checked and wrote statistical scripts. A.v.B. designed and programmed the webtool. D.P., T.J.C.P. and P.M.V. wrote the manuscript. All authors discussed the results and commented on the manuscript.
Corresponding author
Correspondence toDanielle Posthuma.
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Competing interests
The authors declare no competing financial interests.
Integrated supplementary information
Supplementary Figure 1 Authorship co-occurrence matrix on 2,748 twin studies published between 1958 and 2012.
Each colored cell represents two authors who appeared on the same paper; darker cells indicate authors that co-published more frequently. The filter of at least 25 papers per author was set for readability. The web application MaTCH has an interactive version of this matrix.
Supplementary Figure 2 Funnel plots across all traits for twin correlations and variance components.
Z,Z-converted correlation; MZ, monozygotic twins; DZ, dizygotic twins; DZSS, DZ same-sex twins; MZM, MZ male twins; MZF, MZ female twins; DZM, DZ male twins; DZF, DZ female twins; DOS, DZ opposite-sex twins;h2, heritability;c2, shared environment;h2 same sex;c2 same sex;h2 males;c2 males;h2 female;c2 females.
Supplementary Figure 3 Funnel plots forrMZ across the major trait domains.
The plots denote the relationship between theZ-transformedrMZ and its standard error. SE, standard error.
Supplementary Figure 4 Funnel plots forrDZ across the major trait domains.
The plots denote the relationship between theZ-transformedrDZ and its standard error. SE, standard error.
Supplementary Figure 5 Funnel plots forh2 across the major trait domains.
The plots denote the relationship between theZ-transformedh2 and its standard error. SE, standard error.
Supplementary Figure 6 Funnel plots forc2 across the major trait domains.
The plots denote the relationship between theZ-transformedc2 and its standard error. SE, standard error.
Supplementary Figure 7 Distribution of twin correlations and variance components in full and best models across all traits from 2,748 studies.
rMZ, monozygotic twin correlation;rDZ, dizygotic twin correlation;rDZSS, DZ same-sex twin correlation;rMZM, MZ male twin correlation;rMZF, MZ female twin correlation;rDZM, DZ male twin correlation;rDZF, DZ female twin correlation;rDOS, DZ opposite-sex twin correlation;h2, heritability;c2, shared environment;h2 same sex;c2 same sex;h2 males;c2 males;h2 females;c2 females. “BEST” denotes estimates from the most parsimonious models per study. All other estimates are from “FULL” models.
Supplementary Figure 8 Distribution of differences between MZ and DZ correlations.
rMZ, monozygotic twin correlation;rDZ, dizygotic twin correlation;rDZSS, DZ same-sex twin correlation;rMZM, MZ male twin correlation;rMZF, MZ female twin correlation;rDZM, DZ male twin correlation;rDZF, DZ female twin correlation;rDOS, DZ opposite-sex twin correlation.
Supplementary Figure 11 Scatterplots of all MZ versus DZ correlations.
Contour lines indicate the density of the data in that region. The lines are ‘heat’ colored from blue to red, indicating increasing data density.
Supplementary Figure 12 QQ plots of theχ2 test statistics for testing the null hypothesis that 2(rMZ –rDZ) = 0 and 2rDZ –rMZ = 0 and relationship with sample size.
(a) The deviation from the null hypotheses is quantified with the inflationλ in the QQ plots. (b) Effects as a function of sample size.
Supplementary information
Supplementary Text and Figures
Supplementary Figures 1–12, Supplementary Note and Supplementary Tables 1–19, 22–24 and 26–31. (PDF 4786 kb)
Supplementary Tables 20, 21, 25, 32 and 33.
Supplementary Tables 20, 21, 25, 32 and 33. (XLSX 609 kb)
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Polderman, T., Benyamin, B., de Leeuw, C.et al. Meta-analysis of the heritability of human traits based on fifty years of twin studies.Nat Genet47, 702–709 (2015). https://doi.org/10.1038/ng.3285
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