Cloning and characterization of calreticulin and its association with salinity stress in P-trituberculatus

文献类型： 外文期刊

第一作者： Lv, Jianjian

作者： Lv, Jianjian;Wang, Yu;Zhang, Dening;Gao, Baoquan;Liu, Ping;Li, Jian;Wang, Yu;Zhang, Dening

作者机构：

关键词： Portunus trituberculatus;Calreticulin;Salinity;Single nucleotide polymorphism

期刊名称：CELL STRESS & CHAPERONES （ 影响因子：3.667； 五年影响因子：3.717 ）

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年卷期：

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收录情况： SCI

摘要： Calreticulin (CRT) is a highly conserved and multifunctional endoplasmic reticulum (ER) chaperone protein and plays important roles in salinity stress response. Portunus trituberculatus is a commercially important fishery species, and water salinity conditions influence its commercial farming significantly. In order to research the function of calreticulin under salinity stress, the full-length cDNA sequence of calreticulin from P. trituberculatus (PtCRT) was firstly cloned and characterized. The complete cDNA sequence of PtCRT is 1676 bp with 1218 bp open reading frame (ORF), encoding a polypeptide of 405 amino acids. Multiple sequence alignments showed that the deduced acid amino sequences of PtCRT shared the highest homology to CRT of Fenneropenaeus chinensis (89 %). Fluorescent quantitative real-time PCR analysis indicated that PtCRT was expressed in all detected tissues and showed the highest expression level in hepatopancreas. In addition, salinity challenge significantly influenced the expression level of PtCRT in gill. Six single nucleotide polymorphisms (SNPs) were detected in cDNA sequence of PtCRT, and one SNP was associated with the salt tolerant trait. All results indicated that PtCRT plays an important role in mediating the salinity adaption of P. trituberculatus.

分类号： Q1

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