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Cui, Zhongkai; Liu, Yun; Wang, Wenwen; Wang, Qian; Zhang, Ning; Lin, Fan; Wang, Na; Shao, Changwei; Dong, Zhongdian; Li, Yangzhen; Yang, Yingming; Hu, Mengzhu; Li, Hailong; Gao, Fengtao; Wei, Zhanfei; Meng, Liang; Liu, Yang; Wei, Min; Zhu, Ying; Guo, Hua; Cheng, Christopher H K; Schartl, Manfred; Chen, Songlin
Scientific reports, 02/2017, Letnik: 7, Številka: 1Journal Article
Chinese tongue sole is a marine fish with ZW sex determination. Genome sequencing suggested that the Z-linked dmrt1 is a putative male determination gene, but direct genetic evidence is still lacking. Here we show that TALEN of dmrt1 efficiently induced mutations of this gene. The ZZ dmrt1 mutant fish developed ovary-like testis, and the spermatogenesis was disrupted. The female-related genes foxl2 and cyp19a1a were significantly increased in the gonad of the ZZ dmrt1 mutant. Conversely, the male-related genes Sox9a and Amh were significantly decreased. The dmrt1 deficient ZZ fish grew much faster than ZZ male control. Notably, we obtained an intersex ZW fish with a testis on one side and an ovary on the other side. This fish was chimeric for a dmrt1 mutation in the ovary, and wild-type dmrt1 in the testis. Our data provide the first functional evidence that dmrt1 is a male determining gene in tongue sole.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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