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1. Expression Characteristics of vasa Gene at RNA and Protein Level in Apostichopus japonicus During Gametogenesis | |||
YAN Meng,SUI Juan,SHAO Mingyu,SHENG Wanqiang,ZHANG Zhifeng | |||
Aquatic Science 17 January 2012 | |||
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Abstract:The expression product of vasa gene is a widely conserved germ line marker and participates in the development regulation of reproductive system. However, no information on vasa gene in Holothuroidea is available. In this paper, we showed the expression characteristics of Apostichopus japonicus vasa gene (Aj-vasa) during gametogenesis in ovary and testis, using in situ hybridization and immunohistochemistry techniques. The expression of Aj-vasa RNA is strongest in early germ cells (oogoniums and spermatogonia), decreases as the maturation proceeded (oocyte and spermatocyte), and absents in spermatid and sperms. Our findings show that the overall expression trend of Aj-vasa RNA is similar with that of its protein(Aj-VASA) during gametogenesis. Nevertheless there was a sexuality difference about the subcellular location of vasa RNA and its protein which was reflected in the specifically expression in cytoplasm of female germ cells and the widely expression in both nucleus cytoplasm of male germ cells. It suggested that Aj-vasa RNA as well as Aj-VASA could be the marker of germ cells during gametogenesis. | |||
TO cite this article:YAN Meng,SUI Juan,SHAO Mingyu, et al. Expression Characteristics of vasa Gene at RNA and Protein Level in Apostichopus japonicus During Gametogenesis[OL].[17 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4462753 |
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