The Social Genome of Friends and Schoolmates in the National Longitudinal Study of Adolescent to Adult Health
Date: 11/09/2017 (Thu)
Time: 3:30pm- 5:00pm
Location: Gross Hall 270
Organizer: V. Joseph Hotz, Ph.D.
Meeting Schedule: Login or email the organizer to schedule a meeting.
All meetings will be in Gross Hall 230K unless otherwise noted.
8:30am - Belsky et al.
9:00am - Belsky et al.
9:30am - Belsky et al.
10:00am - Belsky et al.
10:30am - Leah Richmond Rakerd
11:00am - Jasmin Wertz
11:30am - Bryce Bartlett
12:00pm - Lunch - Bryce Bartlett and Miles Marsala
12:30pm - Lunch - Bryce Bartlett and Miles Marsala
1:00pm - Lunch - Bryce Bartlett and Miles Marsala
1:30pm - Jenny Tung
2:00pm - Angie O'Rand
2:30pm - Joe Hotz
3:00pm - Seminar Prep
3:30pm - Seminar Presentation (3:30pm to 5:00pm)
Additional Comments: Abstract: 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 9,500 adolescents from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine genetic similarities among pairs of friends. While 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. Preprint: https://www.biorxiv.org/content/early/2017/10/30/107045.article-info