生物技术通报 ›› 2017, Vol. 33 ›› Issue (7): 203-209.doi: 10.13560/J.cnki.biotech.bull.1985.2017-0096

• 研究报告 • 上一篇    下一篇

四个罗氏沼虾抗病选择系抗病力比较分析

李玉锋1,戴习林1,袁新程1,周迅1,胡彦杰1,丁福江2   

  1. 1. 水产科学国家级实验教学示范中心上海海洋大学 农业部淡水水产种质资源重点实验室上海海洋大学 水产动物遗传育种中心上海市协同创新中心上海海洋大学;
    2. 上海申漕特种水产开发公司,上海 201516
  • 收稿日期:2017-02-17 出版日期:2017-07-11 发布日期:2017-07-11
  • 作者简介:李玉锋,男,硕士研究生,研究方向:水产动物种质资源于种苗工程;E-mail:959914518@qq.com
  • 基金资助:

    上海市现代农业产业技术体系(虾类)[沪农科产字(2015)第5号]

Comparing and Analyzing the Disease Resistances of Four Disease-resistant Selected Lines of Macrobrachium rosenbergii

LI Yu-feng1, DAI Xi-lin1 ,YUAN Xin-cheng1 ,ZHOU Xun1 ,HU Yan-jie1 ,DING Fu-jiang2   

  1. 1. National Demonstration Center for Experimental Fisheries Science EducationShanghai Ocean University;Key Laboratory of Freshwater Aquatic Genetic ResourcesShanghai Ocean University,Ministry of Agriculture; Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding;
    2. Shanghai Shencao Special Fisheries Development Corps,Shanghai 201516
  • Received:2017-02-17 Published:2017-07-11 Online:2017-07-11

摘要:

采用荧光定量PCR方法,对4个罗氏沼虾抗病选择系的4个抗病力基因(热休克蛋白70(HSP70)Se-GPx、CAT、SOD)表达量分析。通过感染溶藻弧菌(Vibrio alginolyticus),对比4个选择系之间HSP70、Se-GPx、CAT及SOD表达量的差异,结合4个选择系成活率,来对比4个抗病选择系抗病力强弱。结果表明,A、B两个抗病选择系的肝胰腺HSP70 mRNA的相对表达量明显高于C、D两个抗病选择系(P<0.05)。感染96 h内Se-GPx、CAT、SOD表达量变化显著,在4个选择系不同时间表达量也不相同,但是总体变化趋势是A、B选择系高于C、D选择系。结合4个选择系感染溶藻弧菌一周的成活率分别为65.0%、65.8%、51.7%及53.3%,可得出结论A、B两个抗病选择系抗病力高于C、D两个选择系。

关键词: 罗氏沼虾, HSP70, 非特异性免疫, 溶藻弧菌

Abstract:

Expressions of 4 disease-resistant genes(heat shock protein70(HSP70),Se-GPx,CAT,and SOD)from 4 selected lines(A,B,C,and D)of Macrobrachium rosenbergii were analyzed with real-time PCR. Infected with Vibrio alginolyticus,the disease-resistant abilities of the 4 selected lines were compared based on the survival rates of 4 selected lines and the expression differences ofHSP70,Se-GPx,CAT,and SOD among the 4 selected lines. The results showed that relative expression of HSP70 mRNA of A and B was obviously higher than that of C and D in the hepatopancreas(P<0.05). The expressions of Se-GPx,CAT,and SOD changed significantly within 96 h,and were different among the 4 selected lines at different time;however,the general trend was that expressions in A and B were higher than those in C and D. The rate of A,B,C,and D was 65.0%,65.8%,51.7%,and 53.3% after infecting with V.alginolyticus for a week,it is inferred that disease-resistant ability of A and B is higher than that of C and D.

Key words: Macrobrachium rosenbergii, HSP70, non-specific immune, Vibrio alginolyticus