Sex-specific stress tolerance, proteolysis, and lifespan in the invertebrate Tigriopus californicus.

ABSTRACT: Because stress tolerance and longevity are mechanistically and phenotypically linked, the sex with higher acute stress tolerance might be expected to also live longer. On the other hand, the association between stress tolerance and lifespan may be complicated by tradeoffs between acute tolerance and long-term survival. Here we use the copepod Tigriopus californicus to test for sex differences in stress resistance, proteolytic activity and longevity. Unlike many model organisms, this species does not have sex chromosomes. However, substantial sex differences were still observed. Females were found to have superior tolerance to a range of acute stressors (high temperature, high salinity, low salinity, copper and bisphenol A (BPA)) across a variety of treatments including different population

SUBMITTER: Foley HB 

PROVIDER: S-EPMC7155943 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature