The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health
Humans tend to form social relationships with others who resemble them. Whether this sorting of like with like arises from historical patterns of migration, meso-level social structures in modern society, or individual-level selection of similar peers remains unsettled. Recent research has evaluated...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5789914/ https://www.ncbi.nlm.nih.gov/pubmed/29317533 http://dx.doi.org/10.1073/pnas.1711803115 |
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author | Domingue, Benjamin W. Belsky, Daniel W. Fletcher, Jason M. Conley, Dalton Boardman, Jason D. Harris, Kathleen Mullan |
author_facet | Domingue, Benjamin W. Belsky, Daniel W. Fletcher, Jason M. Conley, Dalton Boardman, Jason D. Harris, Kathleen Mullan |
author_sort | Domingue, Benjamin W. |
collection | PubMed |
description | Humans tend to form social relationships with others who resemble them. Whether this sorting of like with like arises from historical patterns of migration, meso-level social structures in modern society, or individual-level selection of similar peers remains unsettled. Recent research has evaluated the possibility that unobserved genotypes may play an important role in the creation of homophilous relationships. We extend this work by using data from 5,500 adolescents from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine genetic similarities among pairs of friends. Although there is some evidence that friends have correlated genotypes, both at the whole-genome level as well as at trait-associated loci (via polygenic scores), further analysis suggests that meso-level forces, such as school assignment, are a principal source of genetic similarity between friends. We also observe apparent social–genetic effects in which polygenic scores of an individual’s friends and schoolmates predict the individual’s own educational attainment. In contrast, an individual’s height is unassociated with the height genetics of peers. |
format | Online Article Text |
id | pubmed-5789914 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-57899142018-02-03 The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health Domingue, Benjamin W. Belsky, Daniel W. Fletcher, Jason M. Conley, Dalton Boardman, Jason D. Harris, Kathleen Mullan Proc Natl Acad Sci U S A Social Sciences Humans tend to form social relationships with others who resemble them. Whether this sorting of like with like arises from historical patterns of migration, meso-level social structures in modern society, or individual-level selection of similar peers remains unsettled. Recent research has evaluated the possibility that unobserved genotypes may play an important role in the creation of homophilous relationships. We extend this work by using data from 5,500 adolescents from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine genetic similarities among pairs of friends. Although there is some evidence that friends have correlated genotypes, both at the whole-genome level as well as at trait-associated loci (via polygenic scores), further analysis suggests that meso-level forces, such as school assignment, are a principal source of genetic similarity between friends. We also observe apparent social–genetic effects in which polygenic scores of an individual’s friends and schoolmates predict the individual’s own educational attainment. In contrast, an individual’s height is unassociated with the height genetics of peers. National Academy of Sciences 2018-01-23 2018-01-09 /pmc/articles/PMC5789914/ /pubmed/29317533 http://dx.doi.org/10.1073/pnas.1711803115 Text en Copyright © 2018 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/ This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Social Sciences Domingue, Benjamin W. Belsky, Daniel W. Fletcher, Jason M. Conley, Dalton Boardman, Jason D. Harris, Kathleen Mullan The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title | The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title_full | The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title_fullStr | The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title_full_unstemmed | The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title_short | The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health |
title_sort | social genome of friends and schoolmates in the national longitudinal study of adolescent to adult health |
topic | Social Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5789914/ https://www.ncbi.nlm.nih.gov/pubmed/29317533 http://dx.doi.org/10.1073/pnas.1711803115 |
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