《中国畜牧兽医》---唯一指定的官方网站 ›› 2015, Vol. 42 ›› Issue (3): 549-557.doi: 10.11843/j.issn.1671-7236.2015.03.007

• 生物技术 • 上一篇    下一篇

2011年—2014年广西猪流行性腹泻病毒检测及其M基因的序列分析

卢冰霞1, 秦毅斌1, 何颖1, 李莹莹1,2, 梁家幸1, 黎珂钰1,2, 李斌1, 苏乾莲1, 周英宁1, 蒋冬福1, 卢敬专1, 闭炳芬1, 梁保忠1, 段群棚1, 赵武1   

  1. 1. 广西兽医研究所, 广西畜禽疫苗新技术重点实验室, 南宁 530001;
    2. 广西大学动物科学技术学院, 南宁 530005
  • 收稿日期:2014-08-06 出版日期:2015-03-20 发布日期:2015-03-30
  • 通讯作者: 赵武 E-mail:zhaowu168866@163.com
  • 作者简介:卢冰霞(1986-),女,广西桂平人,硕士,助理研究员,研究方向:动物传染病病原与分子生物学,E-mail:lubingxia13@163.com
  • 基金资助:

    广西水产畜牧兽医局科研项目(桂渔牧科12049031);广西畜禽疫苗新技术重点实验室系统性研究课题(12-071-28-A-5);广西基本科研业务费专项(桂科专项14-2)

Detection of Porcine Epidemic Diarrhea Virus from 2011 to 2014 in Guangxi Provine and Sequence Analysis of their M Genes

LU Bing-xia1, QIN Yi-bin1, HE Ying1, LI Ying-ying1,2, LIANG Jia-xing1, LI Ke-yu1,2, LI Bin1, SU Qian-lian1, ZHOU Ying-ning1, JIANG Dong-fu1, LU Jing-zhuan1, BI Bing-fen1, LIANG Bao-zhong1, DUAN Qun-peng1, ZHAO Wu1   

  1. 1. Guangxi Key Laboratory of Animal Vaccines and New Technology, Guangxi Veterinary Research Institute, Nanning 530001, China;
    2. College of Animal Science and Technology, Guangxi University, Nanning 530005, China
  • Received:2014-08-06 Online:2015-03-20 Published:2015-03-30

摘要: 本试验应用RT-PCR方法对2011年1月—2014年4月采自广西南宁、玉林等14个地区的331份仔猪腹泻粪便样品进行猪流行性腹泻病毒(PEDV)检测.结果显示331份样品中有210份为PEDV阳性,阳性率为63.44%.对其中25份阳性样品的PEDV M基因进行克隆和测序,将测序结果与GenBank中PEDV参考毒株的M 基因序列进行同源性比对分析并构建系统进化树.25个PEDV M基因序列与51个参考毒株M基因的核苷酸和氨基酸同源性分别为96.0%~99.9%、94.3%~99.6%.PEDV M基因遗传变异分析结果表明,广西2013年—2014年的PEDV流行毒株与北京、安徽、武汉、河北、广东等地2010年—2013年的流行毒株亲缘关系较近,而与中国早期分离株CH/S(GenBank登录号:JN547228)、疫苗株CV777(GenBank登录号:AF353511)和Attenuated DR13(GenBank登录号:JQ023162)的遗传距离较远.提示广西现流行的PEDV与早期毒株相比已发生较为明显的变异.

关键词: 猪流行性腹泻病毒(PEDV); M 基因; 遗传变异

Abstract: 331 piglets diarrhea fecal samples,collected from Nanning,Yulin and other 12 cites in Guangxi from January 2011 to April 2014,were used to detect porcine epidemic diarrhea virus (PEDV) by RT-PCR method.210 samples were PEDV positive,the positive rate was 63.44%.25 PEDV M genes were cloned from the PEDV positive samples.25 M genes were sequenced,analyzed and compared with 51 PEDV reference strains which were published in GenBank,and the phylogenetic tree was drew.The nucleotide and amino acid homologies of M gene were 96.0% to 99.9% and 94.3% to 99.6%,respectively.The genetic variation analysis of M gene showed that the PEDV prevalent strains of Guangxi province in 2013 to 2014 were genetically close to the prevalent strains of Beijing,Anhui,Wuhan,Hebei,Guangdong and other places of China from 2010 to 2013.But there were genetically different from the early Chinese isolates CH/S (GenBank No.JN547228),the vaccine strains CV777 (GenBank No.AF353511) and Attenuated DR13 (GenBank No.JQ023162).The results suggested that in recent years Guangxi PEDV epidemic strains had obvious variations compared with the early Chinese PEDV isolates.

Key words: porcine epidemic diarrhea virus (PEDV); M gene; genetic variation

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