Investigation of sex determination in starry flounder ( Platichthys stellatus) reveals sex chromosome evolution in Pleuronectiformes and identifies a sex-specific marker.

ABSTRACT: The identification of sex chromosomes is fundamental for exploring the mechanism and evolution of sex determination. Platichthys stellatus, a species exhibiting clear sexual dimorphism and homomorphic chromosome pairs, has received limited research concerning its sex determination mechanisms. Clarifying the sex chromosome of P. stellatus will enhance our understanding of sex chromosome evolution in Pleuronectiformes. This study employed whole-genome resequencing to investigate the sex chromosome and sex determination system in P. stellatus. Notably, Chr23 was identified as the sex chromosome in P. stellatus, with the sex-determining region (SDR) occupying 48.1% of the chromosome and featuring an XX/XY system. Sex chromosome turnover was observed within Pleuronec

SUBMITTER: Li WJ 

PROVIDER: S-EPMC11668952 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature