Identification and Expression Analysis of Wnt2 Gene in the Sex Differentiation of the Chinese Soft-Shelled Turtle (Pelodiscus sinensis)
文献类型： 外文期刊
作者： Zhou, Tong 1 ; Zhang, Haiqi 2 ; Chen, Meng 1 ; Zhang, Yingping 1 ; Chen, Guobin 1 ; Zou, Guiwei 1 ; Liang, Hongwei 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
2.Zhejiang Inst Freshwater Fisheries, Huzhou 313001, Peoples R China
3.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Key Lab Aquat Genom, Minist Agr & Rural Affairs, Wuhan 430223, Peoples R China
关键词： Pelodiscus sinensis; Wnt2; gonad differentiation; Wnt agonist
期刊名称：LIFE-BASEL （ 影响因子：3.2； 五年影响因子：3.2 ）
ISSN：
年卷期： 2023 年 13 卷 1 期
页码：
收录情况： SCI
摘要： The Chinese soft-shelled turtle (Pelodiscus sinensis) is an important freshwater aquaculture animal in China. The Wnt gene family plays important regulatory roles in the development and growth of mammals. However, the precise function of these family genes has not been well understood in the sex differentiation of Chinese soft-shelled turtles. Here, we cloned a member of the Wnt family, Wnt2, which obtained a 1077 bp open reading frame that encoded a 358-aa protein. The putative amino acid sequences of proteins are exceeded 80% identical to other turtles. The expression level of Wnt2 peaked at the 14th stage both in female and male embryos during the early gonadal differentiation period of Chinese soft-shelled turtles, which occurred before gonadal differentiation. Wnt2 mRNA was expressed at higher levels in the brains and gonads of mature P. sinensis females compared with those in mature males. Wnt agonists significantly affected the expression level of Wnt2 during the gonadal differentiation period. After Wnt agonists (1.0 mu g/mu L, 2.5 mu g/mu L, 5.0 mu g/mu L) treatment, the expression level of the Wnt2 generally appeared to have an inverted-V trend over time in female embryonic gonads. The results suggested that Wnt2 may participate in the regulation of gonad development in P. sinensis during the early embryonic stages. These results could provide a theoretical basis for the reproduction process of the Chinese soft-shelled turtle.
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