Sexually antagonistic selection on educational attainment and body size in Estonian children,Annals of the New York Academy of Sciences

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Sexually antagonistic selection on educational attainment and body size in Estonian children
Annals of the New York Academy of Sciences ( IF 4.1 ) Pub Date : 2022-07-11 , DOI: 10.1111/nyas.14859
Markus Valge ₁ , Richard Meitern ₁ , Peeter Hõrak ₁

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Natural selection is a key mechanism of evolution, which results from the differential reproduction of phenotypes. We describe fecundity selection at different parity transitions on 15 anthropometric traits and educational attainment in Estonian children sampled in the middle of 20th century. The direction of selection on educational attainment and bodily traits was sexually antagonistic, and it occurred via different parity transitions in boys and girls. Compared to boys with primary education, obtaining tertiary education was associated with 3.5 times and secondary education two times higher odds of becoming a father. Transition to motherhood was not related to educational attainment, while education above primary was associated with lower odds (OR = 0.5–0.7) to progression to parities above one and two. Selection on anthropometric traits occurred almost exclusively via childlessness in boys, while among the girls, most of the traits that were associated with becoming a mother were additionally associated with a transition from one child to higher parities. Male (but not female) fitness was thus primarily determined by traits related to mating success. Selection favored stronger and larger boys and smaller girls. Selection on girls favored some traits that associate with perceived femininity, while other feminine traits were selected against.

中文翻译：

爱沙尼亚儿童受教育程度和体型的性对抗选择

自然选择是进化的关键机制，它源于表型的差异繁殖。我们描述了 20 世纪中叶抽样的爱沙尼亚儿童在不同胎次转换时对 15 种人体测量学特征和教育程度的生育力选择。受教育程度和身体特征的选择方向是性别对立的，它通过男孩和女孩的不同胎次转换发生。与受过小学教育的男孩相比，接受过高等教育的男孩成为父亲的几率高出 3.5 倍，中等教育的几率高出两倍。过渡为母亲与教育程度无关，而小学以上的教育与升至一胎和二胎以上的几率较低 (OR = 0.5–0.7) 有关。对人体测量特征的选择几乎完全是通过男孩没有孩子而发生的，而在女孩中，大多数与成为母亲有关的特征还与从一个孩子到更高胎次的过渡有关。因此，男性（但不是女性）的健康状况主要取决于与交配成功相关的特征。选择有利于更强壮更大的男孩和更小的女孩。对女孩的选择偏爱一些与女性气质相关的特征，而选择其他女性特征。因此，男性（但不是女性）的健康状况主要取决于与交配成功相关的特征。选择有利于更强壮更大的男孩和更小的女孩。对女孩的选择偏爱一些与女性气质相关的特征，而选择其他女性特征。因此，男性（但不是女性）的健康状况主要取决于与交配成功相关的特征。选择有利于更强壮更大的男孩和更小的女孩。对女孩的选择偏爱一些与女性气质相关的特征，而选择其他女性特征。

更新日期：2022-07-11

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