您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Expression and Localization of Piwil1 During Gonadal Development in Monopterus albus

文献类型： 外文期刊

作者： Zhang, Jing 1 ; Li, Yongzhi 1 ; Chen, Mei 1 ; Jin, Jiali 1 ; Yue, Huamei 1 ; Ye, Huan 1 ; Ruan, Rui 1 ; Li, Chuangju 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Key Lab Freshwater Biodivers Conservat, Minist Agr & Rural Affairs China, Wuhan 430223, Peoples R China

关键词： expression pattern; gonadal development; localization; Monopterus albus; piwil1

期刊名称：AQUACULTURE RESEARCH （ 影响因子：1.9； 五年影响因子：2.2 ）

ISSN： 1355-557X

年卷期： 2025 年 2025 卷 1 期

页码：

收录情况： SCI

摘要： PIWI proteins and Piwi-interacting RNAs (piRNAs) are crucial for gametogenesis, embryogenesis, and stem cell maintenance in animals. The Piwil1 (Piwi-like RNA-mediated gene silencing 1) gene has rapidly evolved in the protogynous hermaphrodite ricefield eel (Monopterus albus) compared to other teleosts. Notably, there is a significant reduction in DNA methylation levels and an increase in the expression levels of the Piwil1 gene in testes compared to those in ovaries. However, the role of Piwil1 in the gonadogenesis of ricefield eel remains unclear. This study elucidated the histomorphological characteristics of ricefield eel gonads at different developmental stages and analyzed the expression and localization of Piwil1 using qRT-PCR, western blot, and immunofluorescence. Histological analysis showed that the female gonad contained oocytes at different developmental stages, the intersex gonad had both ovarian and testicular tissues, and the male gonad included spermatogenic cells and testicular lobules. Quantitative real-time PCR and western blot indicated significantly higher Piwil1 expression in the ovary, intersexual gonad, and testis compared to other tissues, with levels increasing during gonadal differentiation and peaking in the testis. Immunofluorescence analysis revealed that the PIWIL1 protein was abundantly localized in the cytoplasm of immature oocytes, granulosa cells surrounding the oocytes, spermatogonia, and primary spermatocytes. Importantly, in both the ovary and testis, the expression of Piwil1 initially increased but then decreased at the mRNA and protein levels. These results suggest that Piwil1 might play a crucial role in gonadal development and gametogenesis in ricefield eels.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台