Longer telomeres during early life predict higher lifetime reproductive success in females but not males.

ABSTRACT: The mechanisms that contribute to variation in lifetime reproductive success are not well understood. One possibility is that telomeres, conserved DNA sequences at chromosome ends that often shorten with age and stress exposures, may reflect differences in vital processes or influence fitness. Telomere length often predicts longevity, but longevity is only one component of fitness and little is known about how lifetime reproductive success is related to telomere dynamics in wild populations. We examined the relationships between telomere length beginning in early life, telomere loss into adulthood and lifetime reproductive success in free-living house sparrows (Passer domesticus). We found that females, but not males, with longer telomeres during early life had higher lifetime repro

SUBMITTER: Heidinger BJ 

PROVIDER: S-EPMC8150037 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature