Environmentally-induced sex reversal in fish with chromosomal vs. polygenic sex determination.

ABSTRACT: Sex ratio depends on sex determination mechanisms and is a key demographic parameter determining population viability and resilience to natural and anthropogenic stressors. There is increasing evidence that the environment can alter sex ratio even in genetically sex-determined species (GSD), as elevated temperature can cause female-to-male sex reversal (neomales). Alarmingly, neomales are being discovered in natural populations of several fish, amphibian and reptile species worldwide. Understanding the basis of neomale development is important for conservation biology. Among GSD species, it is unknown whether those with chromosomal sex determination (CSD), the most common system, will better resist the influence of high temperature than those with polygenic sex determination (PSD). Here, w

SUBMITTER: Valdivieso A 

PROVIDER: S-EPMC9620983 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature