EST dataset of pituitary and identification of somatolactin and novel genes in Chinese sturgeon, Acipenser sinensis

文献类型： 外文期刊

第一作者： Cao, Hong

作者： Cao, Hong;Cheng, Hanhua;Zhou, Rongjia;Leng, Xiaoqian;Gui, Jianfang;Li, Chuangju;Wei, Qiwei

作者机构：

关键词： Endocrinology;ESTs;Somatolactin;Acipenser sinensis;Pituitary

期刊名称：MOLECULAR BIOLOGY REPORTS （ 影响因子：2.316； 五年影响因子：2.357 ）

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收录情况： SCI

摘要： Chinese sturgeon (Acipenser sinensis) is a rare and endangered species and also an important resource for the sturgeon aquaculture industry, however, a few genes have been identified in this species. We report here construction of a pituitary cDNA library from a 24 years old female Chinese sturgeon just after its spawning, and obtained 2,025 ESTs from the library. 885 unique sequences were identified, which were categorized into 12 functional groups. More than half of the unique sequences (57%) do not match with annotated sequences in the public databases. Three of these novel genes were further identified. Notably, a full-length of cDNA (1,143 bp) encoding somatolactin of 232 amino acids was identified. Phylogenetic analysis showed 97% amino acid identity with White sturgeon somatolactin. RT-PCR analysis indicated that the somatolactin mRNA was only detected in pituitary. Pituitary-specific expression of the somatolactin suggested that the protein may play important physiological functions in pituitary-endocrine system of the Chinese sturgeon.

分类号： Q7

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