rs11206133 - LRP8

Magnitude 2.2 · 1 study on file

Reported associations

• Genomic evidence consistent with antagonistic pleiotropy may help explain the evolutionary maintenance of same-sex sexual behaviour in humans. - Nature human behaviour (2021) · Zietsch BP, Sidari MJ, Abdellaoui A, Maier R, Långström N, Guo S, Beecham GW, Martin ER, Sanders AR, Verweij KJH · PubMed 34426668

  Human same-sex sexual behaviour (SSB) is heritable, confers no immediately obvious direct reproductive or survival benefit and can divert mating effort from reproductive opportunities. This presents a Darwinian paradox: why has SSB been maintained despite apparent selection against it? We show that genetic effects associated with SSB may, in individuals who only engage in opposite-sex sexual behaviour (OSB individuals), confer a mating advantage. Using results from a recent genome-wide association study of SSB and a new genome-wide association study on number of opposite-sex sexual partners in 358,426 individuals, we show that, among OSB individuals, genetic effects associated with SSB are associated with having more opposite-sex sexual partners. Computer simulations suggest that such a ma

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