畜牧兽医学报

• 预防兽医 • 上一篇    下一篇

牛狂犬病病毒的鉴定及N基因序列分析

张克山,刘永杰,孔汉金,尚佑军,刘湘涛*   

  1. 中国农业科学院兰州兽医研究所 家畜疫病病原生物学国家重点实验室 农业部畜禽病毒学重点开放实验室国家口蹄疫参考实验室,兰州 730046
  • 收稿日期:2012-09-20 出版日期:2013-04-23 发布日期:2013-04-23
  • 通讯作者: 刘湘涛, 研究员,E-mail:hnxiangtao@hotmail.com
  • 作者简介:张克山(1980-),男,河南省淮滨人,博士,助理研究员,主要从事动物病毒学研究,E-mail:zks009@126.com
  • 基金资助:

    国家自然科学基金(NSFC-31201914);国家现代肉羊产业技术体系(CARS-39)

Identification and Sequence Analysis of Rabies Virus N Gene from Cattle

ZHANG Ke-shan, LIU Yong-jie, KONG Han-jin, SHANG You-jun, LIU Xiang-tao*   

  1. State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
  • Received:2012-09-20 Online:2013-04-23 Published:2013-04-23

摘要:

为诊断疑似牛狂犬病病例、分析其病原分子特征,本研究以疑似牛狂犬病脑组织为研究对象,运用内基氏小体染色观察、荧光抗体试验、特异性目的基因(N基因)RT-PCR扩增和序列测定等方法进行病毒鉴定,使用DNAStar、Mega4.0软件分析N基因的遗传进化关系。内基氏小体检测、荧光抗体试验、乳鼠脑内接种试验和特异性目的基因扩增结果显示狂犬病毒阳性,建立了基于狂犬病毒N基因的遗传进化关系树。结合临床症状确诊该病例为牛狂犬病,遗传进化分析表明本研究鉴定的狂犬病毒和2006年及2007年国内狗源狂犬病毒(DQ666306、DQ866121)、猪源狂犬病毒(DQ496219)及人源狂犬病毒(EF556197)的遗传关系较近。本文为研究牛狂犬病毒分子流行病学积累了资料。

Abstract:

To diagnose suspected cattle rabies case and analyze molecular characteristics of the pathogen, brain tissue materials of cattle with clinical symptom from a farm in China were used. Rabies virus (RV) in brain tissue was confirmed by Mouse Inoculation Test (MIT), Hematoxylin and Eosin Staining (HE), Fluorescent antibody test (FAT) and specific nucleoprotein gene (N) RT-PCR amplification. Molecular characterization of RV strain was performed using DNAStar, Mega4.0 softwares based on N gene sequence. Results showed that this cattle disease case was caused by RV, phylogenetic tree analysis demonstrated that RV researched in study has a closer genetic relationship with DQ666306, DQ866121, DQ496219, EF556197 which were isolated in 2006 and 2007 from dog, pig and human. This paper accumulated useful materials for further studying molecular epidemiology of cattle RV in China in the future.

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