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Characterization and function of the T-box 1 gene in Chinese giant salamander Andrias davidianus

文献类型： 外文期刊

作者： Hu, Qiaomu 1 ; Meng, Yan 1 ; Wang, Dan 1 ; Tian, Haifeng 1 ; Xiao, Hanbing 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Hubei, Peoples R China

关键词： Andrias davidianus; T-box transcription factor1; Gene expression; Testicular development

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 6 期

页码：

收录情况： SCI

摘要： We characterized the Andrias davidianus T-box 1 (Tbx1) gene. Tbx1 expression was high in testis and low in other examined tissues. Immunohistochemistry detected tbx1 expression in somatic and germ cells 62 days post-hatching (dph), prior to gonad differentiation. At 210 dph, after gonad differentiation, tbx1 was expressed in spermatogonia and testis somatic cells and in granulosa cells in ovary. Tbx1 expression was up-regulated in ovary after high temperature treatment. In the neomale, tbx1 expression showed a similar profile to normal males, and vice-versa for genetic male. Over-expression of tbx1 in females after injection of TBX1 protein downregulated the female-biased genes cyp19a and foxl2 and up-regulated the male-biased amh gene. When tbx1 was knocked down by tbx1/siRNA, cyp19a and foxl2 expression was up-regulated, and expression of amh, cyp26a, dmrt1, and wt1 was down-regulated. Results suggest that tbx1 influenced sex-related gene expression and participates in regulation of A. davidianus testis development.

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