中国媒介生物学及控制杂志 ›› 2014, Vol. 25 ›› Issue (1): 12-14.DOI: 10.11853/j.issn.1003.4692.2014.01.003

• 论著 • 上一篇    下一篇

青海省凶小库蚊辽宁病毒的分离鉴定

李文娟1,2,3,李铭华2,王静林2,吕志2,曹玉玺2,王志玉3,梁国栋2   

  1. 1 济宁医学院法医学与医学检验学院,山东 济宁 272067;
    2 中国疾病预防控制中心病毒病预防控制所病毒性脑炎室,传染病预防控制国家重点实验室,北京 102206;
    3 山东大学公共卫生学院,山东 济南 250012
  • 收稿日期:2013-07-16 出版日期:2014-02-20 发布日期:2014-02-20
  • 通讯作者: 梁国栋, Email: gdliang@hotmail.com
  • 作者简介:李文娟, 女, 博士, 主要从事病毒学检验研究。Email: liwenjuan_sdu@163.com
  • 基金资助:
    科技部重大项目(2003BA712A08-01); 传染病预防控制国家重点实验室发展基金(2008SKLID105)

Isolation and identification of Liaoning virus from Culex modestuscollected in Qinghai province, China

LI Wen-juan1,2,3, LI Ming-hua2, WANG Jing-lin2, LYU Zhi2, CAO Yu-xi2, WANG Zhi-yu3, LIANG Guo-dong2   

  1. 1 School of Forensic and Laboratory Medicine, Jining Medical University, Jining 272067, Shandong Province, China;
    2 State Key Laboratory for Infectious Diseases Prevention and Control, Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China;
    3 School of Public Health,Shandong University, Jinan 250012, Shandong Province, China
  • Received:2013-07-16 Online:2014-02-20 Published:2014-02-20
  • Contact: LIANG Guo-dong, Email: gdliang@hotmail.com
  • Supported by:
    Supported by the Ministry of Science and Technology of China(No. 2003BA712A08-01) and Development Grant of State Key Laboratory for Infectious Diseases Prevention and Control (No. 2008SKLID105)

摘要: 目的 对青海省蚊虫标本中新分离的QH07130病毒株进行系统鉴定分析。方法 采用血清学和分子生物学方法对QH07130病毒进行鉴定,并对该病毒进行系统进化特征分析。结果 QH07130病毒株对C6/36细胞产生明显细胞病变;间接免疫荧光试验显示,QH07130病毒株与辽宁病毒(LNV)单克隆抗体呈现阳性反应。聚丙烯酰胺凝胶电泳显示,QH07130病毒为12条带双链RNA病毒,与LNV的6-5-1带型一致。该病毒第10节段序列测定全长为844 bp,与LNV SX0771和NE9712株核苷酸同源性分别为99.5%和98.0%;系统进化分析显示,QH07130病毒位于LNV进化分支内,并且与LNV SX0771和NE9712株的进化关系最近,确认QH07130病毒为LNV。结论 青海省蚊虫中存在LNV传播,这是首次在位于青藏高原的青海省分离到该病毒。

关键词: 凶小库蚊, 辽宁病毒, 进化分析

Abstract: Objective To identify the arbovirus strain QH07130 isolated from Culex modestus collected in Qinghai province, China. Methods The virus QH07130 was identified by serological and molecular biological methods, and phylogenetic analysis of this virus was performed. Results QH07130 propagated in C6/36 cells and caused significant cytopathic effects. As shown by indirect immunofluorescence assay (IFA), QH07130 reacted with the monoclonal antibodies against Liaoning virus (LNV). Polyacrylamide gel electrophoresis showed that QH07130 was a virus with 12 double-stranded RNA segments, which was in accordance with the 6-5-1 banding pattern of LNV. Sequence analysis of the 10th segment of QH07130 revealed that the sequence length was 844 bp, and its nucleotide homologies with LNV SX0771 and NE9712 amounted 99.5% and 98.0%, respectively. Phylogenetic analysis demonstrated that QH07130 was located in the same evolutionary branch with LNV and had the closest revolutionary relationship with LNV SX0771 and NE9712. QH07130 was identified as LNV. Conclusion LNV is transmitted by mosquitoes in Qinghai province. And QH07130 is the first strain of LNV isolated in Qinghai province.

Key words: Culex modestus, Liaoning virus, Phylogenetic analysis

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