Evolutionarily conserved vasa identifies embryonic and gonadal germ cells in spinyhead croaker Collichthys lucidus
文献类型： 外文期刊
第一作者： Li, Yu
作者： Li, Yu;Song, Wei;Zhu, Yei Fei;Ma, Ling Bo;Li, Yu;Zhu, Yei Fei;Zhu, Tian Yu;Li, Ming You;Li, Yu;Zhu, Yei Fei;Zhu, Tian Yu;Li, Ming You;Li, Yu;Zhu, Yei Fei;Zhu, Tian Yu;Li, Ming You
作者机构：
关键词： Collichthys lucidus; primordial germ cells; vasa; visualisation
期刊名称：JOURNAL OF FISH BIOLOGY （ 影响因子：2.051； 五年影响因子：2.25 ）
ISSN： 0022-1112
年卷期： 2019 年 94 卷 5 期
页码：
收录情况： SCI
摘要： In this study, a 2198 bp full-length cDNA of spinyhead croaker Collichthys lucidus vasa gene encoding 616 amino-acid residues was obtained. Multiple alignment revealed that C. lucidus vasa has eight conserved characteristic motifs of the DEAD box protein family and has the highest identity to large yellow croaker Larimichthys croceas. Reverse-transcription (RT)-PCR and Western blot analyses indicated that the vasa messenger (m)RNA and Vasa protein are specifically expressed in the gonads in both sexes. In situ hybridisation (ISH) demonstrated that vasa RNA is exclusively detected in the germ cells in C. lucidus gonads and its temporospatial expression reveals a dynamic pattern during oogenesis. Surprisingly, C. lucidus vasa 3'UTR can direct stable and specific GFP expression in the primordial germ cells (PGC) of medaka Oryzias latipes embryos. Taken together, these results suggest that because C. lucidus vasa expression delineates critical stages of oogenesis, it may be a useful molecular marker for the identification of gonadal germ cells, facilitating the isolation and utilization of germ cells in future study.
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