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Molecular characterization and expression profiles of six genes involved in vitellogenic deposition and hydrolysis of Chinese sturgeon (Acipenser sinensis) suggesting their transcriptional regulation on ovarian development

文献类型： 外文期刊

作者： Yao, Junpeng 1 ; Du, Hao 2 ; Zhou, Hai 1 ; Leng, Xiaoqian 2 ; Wu, Jinping 2 ; He, Shan 1 ; Luo, Jiang 2 ; Liang, Xufang 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Fisheries, Key Lab Freshwater Anim Breeding,Hubei Prov Engn, Minist Agr,Hubei Collaborat Innovat Ctr Freshwate, Wuhan 430070, Peoples R China

2.Chinese Acad Fisheries Sci, Yangtze River Fisheries Res Inst, Minist Agr, Key Lab Freshwater Biodivers Conservat & Utilizat, Wuhan 430223, Peoples R China

关键词： Gene cloning; Gene expression; Ovary development; Regulatory pathway; Dietary lipid

期刊名称：THERIOGENOLOGY （ 影响因子：2.74； 五年影响因子：2.93 ）

ISSN： 0093-691X

年卷期： 2021 年 162 卷

页码：

收录情况： SCI

摘要： Ovary development of Chinese sturgeon (Acipenser sinensis) in controlled breeding has been reported to respond to dietary lipid levels. However, the corresponding molecular regulatory mechanism about ovary development of Chinese sturgeon is still unclear. To elucidate the molecular mechanism of vitellogenic deposition and hydrolysis, six key genes, namely, vtgr (vitellogenin receptor), atp6v1c1 (Vacuolar H+-ATPase subunit c1), atp6v1h (Vacuolar H+-ATPase subunit h), ctsb (cathepsin B), ctsd (cathepsin D) and ctsl (cathepsin L) involved in vitellogenic deposition and hydrolysis of Chinese sturgeon were cloned and characterized, and their spatio-temporal mRNA expression profiles as well as transcriptional responses to dietary lipid level were investigated. The full-length cDNA sequences of these six genes showed similar domain structure to their respective orthologous genes from other vertebrates. Tissue-specific expression patterns of these genes were observed in ovary, liver, muscle, spleen, brain, gill, intestine, heart, stomach and kidney. Ovarian expression level of vtgr was the highest in stage II, and ctsl expression was the highest in stage IV, while the mRNA expressions of other 4 genes were the highest in stage III. The increase of dietary lipid level promoted ovary development and elevated the expressions of vtgr, atp6v1c1, atp6v1h, ctsb and ctsd in the ovary. The results of the present study indicated that these genes are crucial for vitellogenic deposition, and provided a preliminary understanding on the molecular regulation of vitellogenic deposition and hydrolysis during ovary development of Chinese sturgeon. (c) 2021 Elsevier Inc. All rights reserved.

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