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来源类型Publication
Analysis of genetic similarity among friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health (Add Health)
Ben Domingue; Daniel Belsky; Jason Fletcher; Dalton Conley; Jason D. Boardman; Kathleen Mullan Harris
发表日期2017
出版年2017
语种英语
摘要

It has been long known that human relationships are genetically stratified. Whether genetic similarity among those in a relationship is due to complex ancestral patterns linked to historical migration, macro-level social structures in modern society, or individual-level peer selection remains unsettled. We use data from 9,500 adolescents from the the National Longitudinal Study of Adolescent to Adult Health to examine genetic similarity among school-based friends. While friends have correlated genotypes, both at the whole-genome level as well as at trait-associated loci (via polygenic scores), the results suggest that macro-level forces, such as school assignment, are a prime source of genetic similarity between friends. Further, we find evidence consistent with the existence of social genetic effects as an individual's educational attainment is strongly associated with the polygenic scores of those in their broader social environment (e.g., school) and of their friends (net of their own score). In contrast, individual BMI and height are largely unassociated with the genetics of peers.

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URLhttps://cepa.stanford.edu/content/analysis-genetic-similarity-among-friends-and-schoolmates-national-longitudinal-study-adolescent-adult-health-add-health
来源智库Center for Education Policy Analysis (United States)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/491791
推荐引用方式
GB/T 7714
Ben Domingue,Daniel Belsky,Jason Fletcher,et al. Analysis of genetic similarity among friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health (Add Health). 2017.
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