Chen Jiaxing, Xiao Ling, Peng Cheng, Ye Zhifeng, Wang Dengdong, Yang Yuqing, Zhang Haifa, Zhao Mi, Li Shuisheng, Lin Haoran, Zhang Yong
State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China.
Marine Fisheries Development Center of Guangdong Province, Huizhou, People's Republic of China.
J Fish Biol. 2019 Mar;94(3):414-421. doi: 10.1111/jfb.13911. Epub 2019 Feb 20.
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.
硬骨鱼中受社会控制的性别转变是适应性繁殖可塑性的一个显著例子。在许多情况下，性别转变的发生是由社会环境的变化引发的，比如占主导地位的个体消失。橙色斑石斑鱼（Epinephelus coioides）是典型的雌性先熟雌雄同体鱼类，会从雌性转变为雄性，并在其整个生命周期中保持雄性。在本研究中，通过社会隔离成功诱导了雄性橙色斑石斑鱼发生雄向雌的性逆转。系统检查了橙色斑石斑鱼在受社会控制的雄向雌性别逆转过程中的体长和体重、性腺变化、血清性类固醇激素水平以及性别相关基因表达模式。本报告研究了雌性先熟雌雄同体石斑鱼物种中受社会控制的雄向雌性别逆转过程的生理机制。这些结果使我们能够研究性别转变的生理控制，不仅包括从雌性到雄性，还包括从雄性到雌性的转变。
