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盐度调控对花鲈(Lateolabrax maculatus)生长相关基因表达的影响
引用本文:张沛,迟美丽,温海深,钱焜,倪蒙,张亚晨,黄政举,宋志飞,柴森浩.盐度调控对花鲈(Lateolabrax maculatus)生长相关基因表达的影响[J].海洋与湖沼,2015,46(2):446-453.
作者姓名:张沛  迟美丽  温海深  钱焜  倪蒙  张亚晨  黄政举  宋志飞  柴森浩
作者单位:中国海洋大学水产学院 青岛 266003
基金项目:国家“十二五”国家科技支撑计划重大项目课题,2011BAD13B03号。
摘    要:生长激素受体(GHR)作为GH/IGF轴的中心环节,在内分泌调控中发挥重要作用。本实验采用c DNA末端快速扩增法(RACE)技术克隆出花鲈GHR1和GHR2的c DNA全长序列。急性低盐度调控实验设为海水组、半海水组和淡水组。测定了急性低盐度调控24、48、96、144、192h后,花鲈肝脏中GHRs、IGF-1及垂体GH表达情况。结果表明,GHR1 c DNA全长序列2436bp,编码637个氨基酸;GHR2 c DNA全长序列2940bp,编码582个氨基酸。GHR1与GHR2由信号肽、胞外区、跨膜区、胞内区组成,且结构存在差异。脑、肾、鳃中GHR1表达明显高于GHR2;而在肌肉、垂体、肝脏、盲肠、胸腺、心脏中,GHR2表达明显高于GHR1。24h时,各组GHR1表达不变,GHR2、GH、IGF-1显著下降。之后,相对于海水组,淡水组和半海水组GHRs和IGF-1表达升高,而GH下降,GH与GHR负相关。据结果推测,花鲈GHR2可能为SL受体,GH/IGF轴参与低渗调控可能是通过增加GHRs,进而激活下游IGF-1表达而实现。

关 键 词:花鲈  盐度  生长激素受体  生长激素  胰岛素样生长因子1
收稿时间:4/4/2014 12:00:00 AM
修稿时间:2014/9/17 0:00:00

CLONING OF GROWTH HORMONE RECEPTOR AND SALINITY EFFECTS ON THE EXPRESSION OF ITS RELATED GENES IN SEABASS LATEOLABRAX MACULATUS
ZHANG Pei,CHI Mei-Li,WEN Hai-Shen,QIAN Kun,NI Meng,ZHANG Ya-Chen,HUANG Zheng-Ju,SONG Zhi-Fei and CHAI Sen-Hao.CLONING OF GROWTH HORMONE RECEPTOR AND SALINITY EFFECTS ON THE EXPRESSION OF ITS RELATED GENES IN SEABASS LATEOLABRAX MACULATUS[J].Oceanologia Et Limnologia Sinica,2015,46(2):446-453.
Authors:ZHANG Pei  CHI Mei-Li  WEN Hai-Shen  QIAN Kun  NI Meng  ZHANG Ya-Chen  HUANG Zheng-Ju  SONG Zhi-Fei and CHAI Sen-Hao
Institution:College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China,College of Fisheries, Ocean University of China, Qingdao 266003, China and College of Fisheries, Ocean University of China, Qingdao 266003, China
Abstract:
Keywords:Lateolabrax maculatus  salinity  growth hormone receptor  growth hormone  insulin-like growth factor 1
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