A comparative transcriptomic study on developmental gonads provides novel insights into sex change in the protandrous black porgy (Acanthopagrus schlegelii)
文献类型： 外文期刊
作者： Zhang, Kai 1 ; Xu, Jin 3 ; Zhang, Zhiwei 3 ; Huang, Yu 2 ; Ruan, Zhiqiang 2 ; Chen, Shuyin 3 ; Zhu, Fei 3 ; You, Xinxin 2 ;
作者机构： 1.Zhongkai Univ Agr & Engn, Sch Anim & Technol, Guangzhou 510225, Guangdong, Peoples R China
2.BGI Acad Marine Sci, Shenzhen Key Lab Marine Genom, Guangdong Prov Key Lab Mol Breeding Marine Econ A, BGI Marine,BGI, Shenzhen 518083, Peoples R China
3.Jiangsu Marine Fishery Res Inst, Nantong 226007, Jiangsu, Peoples R China
4.BGI Zhenjiang Inst Hydrobiol, BGI Marine, Zhenjiang 212000, Jiangsu, Peoples R China
5.Hainan BGI Marine Sci & Technol Co Ltd, BGI Marine, Wenchang 571327, Peoples R China
6.Rakuno Gakuen Univ, Sch Vet Med, Ebetsu, Hokkaido 0698501, Japan
7.Chinese Acad Fishery Sci, Freshwater Fishery Res Ctr, Wuxi 214081, Jiangsu, Peoples R China
关键词： Black porgy; Sex change; Transcriptome; Differentially expressed gene
期刊名称：GENOMICS （ 影响因子：5.736； 五年影响因子：4.939 ）
ISSN： 0888-7543
年卷期： 2019 年 111 卷 3 期
页码：
收录情况： SCI
摘要： Protandrous black porgy (Acanthopagrus schlegelii) is a popular and valuable commercial marine fish in China and East Asian countries. Controlling and managing its breeding has been an imperative step towards obtaining a sustainable supply of this fish in aquaculture production systems. Therefore, study on the molecular mechanisms of sex change in black porgy has both scientific and commercial importance. Previously, we identified some candidate genes related to sex determination and differentiation from a high-quality genome assembly of the black porgy. In the present study, transcriptome sequencing of developmental gonads (including testis, ovotestis and ovary) of black porgy was performed to further investigate the sex-change mechanisms. Our results showed that the highly expressed male-related genes (dmrt1, piwi1, piwi2, sox9, sox30 and amh) at the male phase were significantly down-regulated to a substantial degree at the intersexual stage, and the female-related genes (jnk1, vasa, wnt4, figla and foxl2) were distinctly up-regulated when the fish grows into a female adult, suggesting the potential roles of these genes in sex change of the black porgy. These data also support a previous hypothesis that the femaleness will be switched on when the testis is entering the degenerated stage through the diminished dmrtl expression. Our transcriptome data provide a very useful genomic resource for future studies on sex change and practical aquaculture in the black porgy.
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