Premium
Socially controlled male‐to‐female sex reversal in the protogynous orange‐spotted grouper, Epinephelus coioides
Author(s) -
Chen Jiaxing,
Xiao Ling,
Peng Cheng,
Ye Zhifeng,
Wang Dengdong,
Yang Yuqing,
Zhang Haifa,
Zhao Mi,
Li Shuisheng,
Lin Haoran,
Zhang Yong
Publication year - 2019
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13911
Subject(s) - sex change , grouper , biology , sex reversal , epinephelus , hermaphrodite , heterogametic sex , zoology , fishery , genetics , fish <actinopterygii> , gene , chromosome
Socially controlled sex change in teleosts is a dramatic example of adaptive reproductive plasticity. In many cases, the occurrence of sex change is triggered by a change in the social context, such as the disappearance of the dominant individual. The orange‐spotted grouper Epinephelus coioides is a typical protogynous hermaphrodite fish that changes sex from female to male and remains male throughout its life span. In this study, male‐to‐female sex reversal in male Epinephelus coioides was successfully induced by social isolation. The body length and mass, gonadal change, serum sex steroid hormone levels and sex‐related gene expression patterns during the process of socially controlled male‐to‐female sex reversal in E. coioides were systematically examined. This report investigates the physiological mechanisms of the socially controlled male‐to‐female sex reversal process in a protogynous hermaphrodite grouper species. The results enable us to study the physiological control of sex change, not only from female to male, but also from male to female.