畜牧兽医学报 ›› 2012, Vol. 43 ›› Issue (6): 937-942.

• 预防兽医 • 上一篇    下一篇

猪捷申病毒HB株的分离与全基因序列分析

张晓杰1,2,刘业兵1*,汤德元2*, 朱向博1   

  1. 1. 中国兽医药品监察所,北京 100081; 2. 贵州大学动物科学学院,贵阳 550025
  • 收稿日期:2011-11-01 出版日期:2012-06-25 发布日期:2012-06-25
  • 通讯作者: 刘业兵,汤德元
  • 作者简介:张晓杰(1985-),男,河北沧州人,硕士生,主要从事动物传染病分子病毒与免疫学研究工作,E-mail:xiaojiezhang.sci@163.com
  • 基金资助:

    国家自然科学基金项目(3172341;31172349);十一五国家科技支撑计划项目(2007BAD86AD04)

Isolation and Sequence Analysis of Complete Genome of Porcine Teschovirus HB Strain

ZHANG Xiao-jie1,2,LIU Ye-bing1*,TANG De-yuan2*,ZHU Xiang-bo1   

  1. 1. China Institute of Veterinary Drug Control, Beijing 100081, China; 2. College of Animal Science, Guizhou University, Guiyang 550025, China
  • Received:2011-11-01 Online:2012-06-25 Published:2012-06-25
  • Contact: LIU Yebing,TANG Deyuan

摘要:

为分析河北省某规模化猪场猪捷申病毒(PTV)的遗传变异和进化关系,作者成功分离到PTV HB株,对其进行了毒力测定和动物回归试验,设计引物进行了全基因序列测定,并与国内外42株PTV全基因序列进行了同源性比较。结果表明猪捷申病毒HB株病毒滴度为10-6.4 TCID50·mL-1,健康仔猪接毒28 d后均出现明显猪捷申病症状,该毒株全基因组序列长度为7 090 bp。系统进化树分析表明,猪捷申病毒HB株(JQ664746)属于PTV-8型血清型,和国内分离的PTV-jilin/2003株(GQ293092)同源性最高,从而为进一步研究该毒株的遗传变异提供参考。

关键词: 猪捷申病毒HB株, 病毒分离, 全基因序列分析

Abstract:

This experiment was conducted to study the genetic variation and phylogenetic analysis of Porcine teschovirus (PTV) HB strain isolated from a pig farm in Hebei Province. ST cells and animal infection experiments were conducted after the virus was originated from clinical tissue samples successfully, and the genome sequence of PTV HB strain had been determined, comparative genome analysis was performed with other 42 PTV strains in GenBank. The virus titer was 10-6.4 TCID50·mL-1, and the infected pigs showed the same clinical signs and homological changes as natural infected ones after 28 days,and the complete genome sequence was composed of 7 090 nucleotides. Phylogenetic tree analysis demonstrated that PTV HB strain (JQ664746) belonged to serotype 8 and had a very closely genetic relationship with PTV-jilin/2003 strain (GQ293092) isolated from Jilin Province, China. Our results provided an essential reference for investigating the genetic variation of PTV HB strain.

Key words: porcine teschovirus HB strain, virus isolation, complete genome sequence analysis

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