›› 2012, Vol. 39 ›› Issue (5): 35-40.

• 生物技术 • 上一篇    下一篇

犬瘟热病毒山东株的分离及N蛋白基因的克隆与序列分析

孟培培, 张洪亮, 黄娟, 单虎   

  1. 青岛农业大学动物科技学院, 山东青岛 266109
  • 收稿日期:2011-10-11 修回日期:1900-01-01 出版日期:2012-05-20 发布日期:2012-05-20
  • 通讯作者: 黄娟, 单虎

Isolation, Cloning and Analysis of Nucleoprotein Gene of Canine Distemper Virus in Shandong

MENG Pei-pei, ZHANG Hong-liang, HUANG Juan, SHAN Hu   

  1. College of Veterinary Medicine and Animal Science, Qingdao Agricultural University, Qingdao 266109, China
  • Received:2011-10-11 Revised:1900-01-01 Online:2012-05-20 Published:2012-05-20

摘要: 本试验采用Vero细胞从临床疑似患犬瘟热的犬组织病料中分离出一株病毒,通过观察细胞病变,提取细胞培养物RNA并扩增克隆分析N蛋白基因部分序列进行了鉴定。结果表明,该毒株接种于Vero细胞后,出现了典型的细胞病变;对接种病料后的Vero细胞培养物提取总RNA进行RT-PCR扩增,得到了287 bp的目的片段;序列分析表明该分离株与犬瘟热病毒弱毒(Onderstepoort和Snyder Hill)的同源性为95.5%~96.9%,与标准强毒株(A75/17和2544/Han95)及野毒株(XJ-4、ZJ7、98-2646等)的同源性较高,为97.2%~99.0%,证明该毒株为犬瘟热病毒野毒株,命名为QD10。

关键词: 犬瘟热病毒; 分离; N蛋白基因; 序列分析

Abstract: A strain of canine distemper virus (CDV) was isolated from the domestic dog in Shandong province, the virus was identified by cell pathological effect observation and RT-PCR. The results showed that typical pathological changes appeared on Vero cells inoculated with the treated pathological material. A 287 bp fragment of nucleoprotein(N) gene was amplified from RNA extraction of Vero cell culture inoculated with the virus. The N gene of isolate shared 95.5% to 96.9% nucleotide homology with that of vaccine stains(Onderstepoort and Snyder Hill),and 97.2% to 99.0% nucleotide homology identity with that of virulent strains (A75/17 and 2544/Han95) and field strains (XJ-4, ZJ7, 98-2646 and so on), the phylogenetic tree also suggested that the isolate had close relationship with field strains, it indicated that the isolate was a CDV field strain, which was named QD10.

Key words: canine distemper virus; isolation; nucleoprotein gene; sequence analysis

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