详细信息
斜带石斑鱼(Epinephelus coioides)MHC Ⅱα基因的克隆及表达分析 被引量:1
cDNA cloning and expression analysis of MHC Ⅱα from orange-spotted grouper (Epinephelus coioides)
文献类型:期刊文献
中文题名:斜带石斑鱼(Epinephelus coioides)MHC Ⅱα基因的克隆及表达分析
英文题名:cDNA cloning and expression analysis of MHC Ⅱα from orange-spotted grouper (Epinephelus coioides)
作者:蔡佳[1,2,3];李楠[1,2,3];蒋一男[4];张念之[4];鲁义善[1,2,3];吴灶和[2,3];夏春[4];简纪常[1,2,3]
机构:[1]广东海洋大学水产学院,湛江524088;[2]广东省水产经济动物病原生物学及流行病学重点实验室,湛江524088;[3]广东省教育厅水产经济动物病害控制重点实验室,湛江524088;[4]中国农业大学动物医学院,北京100094
年份:2015
卷号:25
期号:1
起止页码:102
中文期刊名:高技术通讯
外文期刊名:Chinese High Technology Letters
收录:CSTPCD、、北大核心2014、Scopus、北大核心、CSCD_E2015_2016、CSCD
基金:国家自然科学基金(U0631009;31402335;41406172);广东省教育厅科技创新重点项目(2012CXZD0026);广东海洋大学创新强校工程(GDOU2013050231)资助项目
语种:中文
中文关键词:斜带石斑鱼;溶藻弧菌;MHC;Ⅱα;克隆;表达分析
外文关键词:Epinephelus coioides, Vibrio alginolyticus, MHC Ⅱα, cloning, expression analysis
中文摘要:利用RACE PCR克隆了斜带石斑鱼(Epinephelus coioides)主要组织相容性复合体Ⅱα(MHCⅡα)基因,并通过荧光定量PCR分析了该基因在健康鱼体中的组织分布以及在溶藻弧菌(Vibro alginolyticus)感染后在不同组织中的表达变化。斜带石斑鱼MHCⅡαcDNA全长为2127bp,其中5'非翻译区为834bp,开放阅读框为714bp,3'非翻译区为579bp,编码237个氨基酸,其推导的氨基酸序列包含信号肽、α1及α2功能区、跨膜区、连接肽和胞浆区。荧光定量PCR结果表明,斜带石斑鱼MHCⅡα基因在鳃、头肾、肝、体肾、脑、脾和肠中表达量较高,在心脏、皮肤和肌肉中的表达量较低,并且溶藻弧菌(Vibro alginolyticus)感染后在脾、肠、头肾、和体肾中的表达显著上调,分别为对照组的9.5倍、4.3倍、3.4倍及1.9倍。上述结果表明斜带石斑鱼MHCⅡα在抗溶藻弧菌感染的免疫反应中可能发挥重要作用,这对进一步了解石斑鱼抗菌免疫反应具有参考意义。
外文摘要:In this study, the cDNA of orange-spotted grouper ( Epinephelus coioides) MHC ( major laistocompatltnnty com- plex) IIa gene (Ec-MHC Ⅱα) was cloned. And its distribution in healthy tissue and temporal expression after Vi- bro alginolyticus infection were also investigated by quantitative real-time PCR. The Ec-MHC Ⅱα cDNA was 2127bp in length, including an 834 bp 5' UTR, a 714 bp open reading frame, and a 579 bp 3' UTR. The deduced amino acid sequence contained a signal peptide, alpha 1 and alpha 2 domains, transmembrane region, connecting peptide and cytoplasmic domain. The results of quantitative real-time PCR showed that the grouper MHC Ⅱα gene was highly expressed in gill, head kidney, liver, trunk kidney, brain, spleen and intestine, but weakly expressed in heart, skin and muscle. Moreover, Ec-MHC Ⅱα expressions were significantly up-regulated in spleen (9.5 fold), intestine (4.3 fold), head kidney (3.4 fold), kidney ( 1.9 fold) after Vibrio alginolyticus infection. These data indicates that Ec-MHC Ⅱα might play an important role in immune response to Vibrio alginolyticus infection. It is of referential significance to better understanding of the grouper' s immunity against bacteria invasion.
参考文献:
正在载入数据...