Genetic and environmental influences on testosterone in adolescents: Evidence for sex differences
Article first published online: 13 FEB 2014
© 2014 Wiley Periodicals, Inc.
Volume 56, Issue 6, pages 1278–1289, September 2014
How to Cite
Harden, K. P., Kretsch, N., Tackett, J. L. and Tucker-Drob, E. M. (2014), Genetic and environmental influences on testosterone in adolescents: Evidence for sex differences. Dev. Psychobiol., 56: 1278–1289. doi: 10.1002/dev.21207
- Issue published online: 1 AUG 2014
- Article first published online: 13 FEB 2014
- Manuscript Accepted: 17 JAN 2014
- Manuscript Received: 23 APR 2013
- behavioral genetics;
The current study investigated genetic and environmental influences on salivary testosterone during adolescence, using data from 49 pairs of monozygotic twins and 68 pairs of dizygotic twins, ages 14–19 years (M = 16.0 years). Analyses tested for sex differences in genetic and environmental influences on testosterone and its relation to pubertal development. Among adolescent males, individual differences in testosterone were heritable (55%) and significantly associated with self-reported pubertal status (controlling for age) via common genetic influences. In contrast, there was minimal heritable variation in testosterone for females, and testosterone in females was not significantly associated with pubertal status after controlling for age. Rather, environmental influences shared by twins raised together accounted for nearly all of the familial similarity in female testosterone. This study adds to a small but growing body of research that investigates genetic influences on individual differences in behaviorally relevant hormones. © 2014 Wiley Periodicals, Inc. Dev Psychobiol 56: 1278–1289, 2014.