Allelic variation and duplication of the dmrt1 were associated with sex chromosome turnover in three representative Scatophagidae fish species
文献类型： 外文期刊
作者： Huang, Yuan-Qing 1 ; Zhang, Xin-Hui 2 ; Bian, Chao 2 ; Jiao, Kai-Zhi 1 ; Zhang, Lin 3 ; Huang, Yu 4 ; Yang, Wei 5 ; Li, Yu 1 ; Shi, Gang 1 ; Huang, Yang 1 ; Tian, Chang-Xu 1 ; Chen, Hua-Pu 1 ; Deng, Si-Ping 1 ; Zhu, Chun-Hua 1 ; Shi, Qiong 2 ; Li, Guang-Li 1 ; Jiang, Dong-Neng 1 ;
作者机构： 1.Guangdong Ocean Univ, Fisheries Coll, Guangdong Res Ctr Reprod Control & Breeding Techno, Guangdong Prov Key Lab Aquat Anim Dis Control & Hl, Zhanjiang 524088, Peoples R China
2.Shenzhen Univ, Coll Life Sci & Oceanog, Lab Aquat Genom, Shenzhen 518057, Peoples R China
3.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
4.BGI Acad Marine Sci, Shenzhen Key Lab Marine Genom, Guangdong Prov Key Lab Mol Breeding Marine Econ An, Shenzhen 518081, Peoples R China
5.Yangjiang Polytech, Yangjiang 529566, Peoples R China
期刊名称：COMMUNICATIONS BIOLOGY （ 影响因子：5.1； 五年影响因子：5.8 ）
ISSN：
年卷期： 2025 年 8 卷 1 期
页码：
收录情况： SCI
摘要： Fish species of the family Scatophagidae possessing known candidate sex-determining genes (male-specific dmrt1Ys), offer suitable models for studying sex chromosome evolution. Here, we analyzed sex chromosome turnover events in three representative fish species of the family Scatophagidae, belonging to the genera Scatophagus and Selenotoca, which diverged 12.8 million years ago (Mya). Prior to the divergence of Sc. argus and Sc. tetracanthus 7.2 Mya, their dmrt1Y was differentiated from its locus, the truncated dmrt1 Delta X, through allelic variation. The Y chromosome (Chr1) of Sc. tetracanthus is the result of the fusion of the original Y chromosome (Chr4) with an autosome (Chr13). The Se. multifasciata dmrt1Y arose from a duplication of dmrt1 on Chr4 and then translocated to the new Y chromosome (Chr18). The divergent evolutionary trajectories of the dmrt1Ys were accompanied by sex chromosome turnover in these three species. The sex chromosomes of the Scatophagidae family have evolved rapidly, albeit not randomly.
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