alexa Genetic and educational assortative mating among US adults.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Phylogenetics & Evolutionary Biology

Author(s): Domingue BW, Fletcher J, Conley D, Boardman JD, Domingue BW, Fletcher J, Conley D, Boardman JD

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Abstract Understanding the social and biological mechanisms that lead to homogamy (similar individuals marrying one another) has been a long-standing issue across many fields of scientific inquiry. Using a nationally representative sample of non-Hispanic white US adults from the Health and Retirement Study and information from 1.7 million single-nucleotide polymorphisms, we compare genetic similarity among married couples to noncoupled pairs in the population. We provide evidence for genetic assortative mating in this population but the strength of this association is substantially smaller than the strength of educational assortative mating in the same sample. Furthermore, genetic similarity explains at most 10\% of the assortative mating by education levels. Results are replicated using comparable data from the Framingham Heart Study.
This article was published in Proc Natl Acad Sci U S A and referenced in Journal of Phylogenetics & Evolutionary Biology

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