Expression analysis and characterization of an autosome-localized tesk1 gene in half-smooth tongue sole (Cynoglossus semilaevis)

文献类型： 外文期刊

第一作者： Xu, Wenteng

作者： Xu, Wenteng;Li, Hailong;Zhang, Ning;Dong, Zhongdian;Wang, Na;Shao, Changwei;Chen, Songlin;Xu, Wenteng;Li, Hailong;Zhang, Ning;Dong, Zhongdian;Wang, Na;Shao, Changwei;Chen, Songlin

作者机构：

关键词： Cynoglossus semilaevis;Altesk1;Expression pattern;Methylation profile;Oogenesis

期刊名称：GENE （ 影响因子：3.688； 五年影响因子：3.329 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Testis-specific protein kinase 1 (tesk1) represents a conserved gene family functioning in many cellular processes. In this study, we cloned and characterized an autosome-localized tesk1 gene (Altesk1) from Cynoglossus semilaevis. The open reading frame consists of 2088 nucleotides and encodes a 665 amino acid polypeptide. Phylogenetic analyses show that vertebrate Tesk1s are divided into two clusters based on protein length and AlTesk1 belongs to "long-type" group. Semi-quantitative PCR reveals that Altesk1 is predominantly expressed in ovary, despite of relatively low detection in some other tissues. Among different development stages, Altesk1 transcripts are only observed in ovary samples of 210-day and 1-year fish. In situ hybridization analyses have further confirmed its major localization in oocyte cells. Comparison of methylation patterns in different sexual genotypes reveals the low methylation level of Altesk1 promoter in female, which is consistent with Altesk1 high expression level in female. Taken together, this is the first time that tesk1 gene has been found to show female-biased expression and in view of this, we postulate that AlTesk1 might be involved in some cellular processes specific in ovary, e.g. oogenesis. (C) 2016 Elsevier B.V. All rights reserved.

分类号： R394

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