The nature of nurture: Effects of parental genotypes

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DOI

  • Augustine Kong, DeCODE Genetics/Amgen, University of Oxford, Oxford, University of Iceland
  • ,
  • Gudmar Thorleifsson, DeCODE Genetics/Amgen
  • ,
  • Michael L. Frigge, DeCODE Genetics/Amgen
  • ,
  • Bjarni J. Vilhjalmsson
  • Alexander I. Young, DeCODE Genetics/Amgen, University of Oxford, Oxford, Wellcome Trust Centre for Human Genetics
  • ,
  • Thorgeir E. Thorgeirsson, DeCODE Genetics/Amgen
  • ,
  • Stefania Benonisdottir, DeCODE Genetics/Amgen
  • ,
  • Asmundur Oddsson, DeCODE Genetics/Amgen
  • ,
  • Bjarni V. Halldorsson, DeCODE Genetics/Amgen
  • ,
  • Gisli Masson, DeCODE Genetics/Amgen
  • ,
  • Daniel F. Gudbjartsson, DeCODE Genetics/Amgen, University of Iceland
  • ,
  • Agnar Helgason, DeCODE Genetics/Amgen, University of Iceland
  • ,
  • Gyda Bjornsdottir, DeCODE Genetics/Amgen
  • ,
  • Unnur Thorsteinsdottir, DeCODE Genetics/Amgen, University of Iceland
  • ,
  • Kari Stefansson, DeCODE Genetics/Amgen, University of Iceland

Sequence variants in the parental genomes that are not transmitted to a child (the proband) are often ignored in genetic studies. Here we show that nontransmitted alleles can affect a child through their impacts on the parents and other relatives, a phenomenon we call "genetic nurture." Using results from a meta-analysis of educational attainment, we find that the polygenic score computed for the nontransmitted alleles of 21,637 probands with at least one parent genotyped has an estimated effect on the educational attainment of the proband that is 29.9% (P = 1.6 × 10-14) of that of the transmitted polygenic score. Genetic nurturing effects of this polygenic score extend to other traits. Paternal and maternal polygenic scores have similar effects on educational attainment, but mothers contribute more than fathers to nutrition- and heath-related traits.

OriginalsprogEngelsk
TidsskriftScience
Vol/bind359
Nummer6374
Sider (fra-til)424-428
Antal sider5
ISSN0036-8075
DOI
StatusUdgivet - 26 jan. 2018

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