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拟穴青蟹丝裂原活化蛋白激酶激酶(MAPKK)基因的克隆与表达分析
引用本文:郑碧琪,刘学良,黄辉洋,巩杰,叶海辉.拟穴青蟹丝裂原活化蛋白激酶激酶(MAPKK)基因的克隆与表达分析[J].水产学报,2014,38(3):333-339.
作者姓名:郑碧琪  刘学良  黄辉洋  巩杰  叶海辉
作者单位:厦门大学海洋与地球学院,福建 厦门 361100;厦门大学海洋与地球学院,福建 厦门 361100;厦门大学海洋与地球学院,福建 厦门 361100;厦门大学海洋与地球学院,福建 厦门 361100;厦门大学海洋与地球学院,福建 厦门 361100
基金项目:国家自然科学基金项目(41076081,31272632)
摘    要:采用qRT-PCR、RACE等方法,获得了拟穴青蟹丝裂原活化蛋白激酶激酶(MAPKK)基因cDNA全长序列。该基因全长1 558 bp,开放阅读框长度为1 224 bp,编码407个氨基酸残基。同源分析显示,该基因编码的蛋白与昆虫的相似性高达70%,推测MAPKK基因在节肢动物具有较高的保守性。经荧光定量PCR检测,MAPKK基因在拟穴青蟹多个组织中有表达,且在脑神经节和卵巢中表达量较高。在拟穴青蟹卵巢发育过程中,MAPKK基因在卵巢发育期(Ⅲ期)表达量最高,发育期为卵母细胞快速生长期,推测MAPKK具有促进卵母细胞快速生长的作用。

关 键 词:拟穴青蟹  丝裂原活化蛋白激酶激酶  基因克隆  组织表达分析
收稿时间:2013/8/28 0:00:00
修稿时间:2013/12/30 0:00:00

Cloning and expression analysis of the MAPKK gene in the mud crab(Scylla paramamosain)
ZHENG Biqi,LIU Xueliang,HUANG Huiyang,GONG Jie and YE Haihui.Cloning and expression analysis of the MAPKK gene in the mud crab(Scylla paramamosain)[J].Journal of Fisheries of China,2014,38(3):333-339.
Authors:ZHENG Biqi  LIU Xueliang  HUANG Huiyang  GONG Jie and YE Haihui
Affiliation:College of Ocean and Earth Sciences, Xiamen University, Xiamen 361100, China;College of Ocean and Earth Sciences, Xiamen University, Xiamen 361100, China;College of Ocean and Earth Sciences, Xiamen University, Xiamen 361100, China;College of Ocean and Earth Sciences, Xiamen University, Xiamen 361100, China;College of Ocean and Earth Sciences, Xiamen University, Xiamen 361100, China
Abstract:In this paper,the MAPKK(mitogen-activated protein kinase kinase)was isolated from the mud crab,Scylla paramamosain using RT-PCR and RACE methods.The obtained full-length cDNA of MAPKK was 1 558 bp with an open reading frame of 1 224 bp encoding a putative peptide of 407 amino acids.By alignment,the amino acid sequence of S.paramamosain MAPKK showed high homology with those of some other animals.It suggested MAPKK was highly conservative.Real-time PCR showed that the MAPKK gene was expressed in various tissues,and highly expressed in brain ganglion and ovary.The MAPKK mRNA profiles during ovarian development indicated that the expression of MAPKK was significantly high at developing stage.We inferred that MAPKK might play a stimulative role in the ovarian development of the mud crab.
Keywords:Scylla paramamosain  MAPKK  gene cloning  tissue expression analysis
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