Evolution of sex-specific pace-of-life syndromes: genetic architecture and physiological mechanisms.

ABSTRACT: Sex differences in life history, physiology, and behavior are nearly ubiquitous across taxa, owing to sex-specific selection that arises from different reproductive strategies of the sexes. The pace-of-life syndrome (POLS) hypothesis predicts that most variation in such traits among individuals, populations, and species falls along a slow-fast pace-of-life continuum. As a result of their different reproductive roles and environment, the sexes also commonly differ in pace-of-life, with important consequences for the evolution of POLS. Here, we outline mechanisms for how males and females can evolve differences in POLS traits and in how such traits can covary differently despite constraints resulting from a shared genome. We review the current knowledge of the genetic basis of POLS traits an

SUBMITTER: Immonen E 

PROVIDER: S-EPMC5856903 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature