中国媒介生物学及控制杂志 ›› 2012, Vol. 23 ›› Issue (5): 384-387.

• 专题报道——虫媒病毒调查研究 • 上一篇    下一篇

云南省三带喙库蚊中分离到Toti病毒

郭晓芳1,2, 卢云兰3, 曾旭灿2, 陶娅琳3, 周红宁2, 张久松1   

  1. 1. 军事医学科学院微生物流行病研究所, 北京 100071;
    2. 云南省寄生虫病防治所, 云南普洱 665000;
    3. 大理学院病原与媒介生物研究所
  • 收稿日期:2012-06-29 出版日期:2012-10-20 发布日期:2012-10-20
  • 通讯作者: 张久松,Email: zhang_jiusong@yahoo.com.cn;周红宁,Email: zhhn@yipd.org
  • 基金资助:

    国家自然科学基金(30660160)

Isolation of Totivirus from Culex tritaeniorhynchus in Yunnan province, China

GUO Xiao-fang1,2, LU Yun-lan3, ZENG Xu-can2, TAO Ya-lin3, ZHOU Hong-ning2, ZHANG Jiu-song1   

  1. 1. Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China;
    2. YunnanInstitute of Parasitic Diseases, Pu’er 665000, Yunnan Province, China;
    3. Institute of Pathogens and Vectors, Dali University
  • Received:2012-06-29 Online:2012-10-20 Published:2012-10-20
  • Supported by:

    Supported by the National Natural Science Foundation of China(No. 30660160)

摘要:

目的 对云南省蚊虫病毒分离物进行分子生物学鉴定,以明确其分类地位。方法 采用C6/36细胞对病毒分离物ML-13做病毒扩增,使用多种虫媒病毒基因扩增引物进行病毒基因扩增和基因序列测定。采用推导的氨基酸序列用Mega5.0软件构建种系发生树。结果 ML-13病毒可以在蚊虫细胞增殖,用OMRV和ToV-TJ病毒特异引物扩增出目的产物,序列分析显示,ML-13病毒与OMRV-AK4、ToV-TJ、OMRV-Y61、DTV、AsTV病毒衣壳蛋白和RNA依赖RNA聚合酶基因株相似性最高,分别为76%、75%、72%、67%和67%;与Toti病毒科中的DTV、ToV-TJ病毒和OMRV处于同一进化分支。结论 云南省三带喙库蚊中分离的ML-13病毒为Toti病毒,这是我国首次从三带喙库蚊中分离到Toti病毒。关键词:虫媒病毒;Toti病毒;分子生物学鉴定。

关键词: 虫媒病毒, Toti病毒, 分子生物学鉴定

Abstract:

Objective To identify the isolated virus (ML-13) from mosquitoes in Yunnan province, China by molecular biology techniques. Methods The new virus isolate (ML-13) was amplified by C6/36 cells. The viral gene was amplified and sequenced using several sets of arbovirus primers. A phylogenetic tree was constructed using Mega 5.0 based on deduced amino acid sequences. Results ML-13 virus could be amplified in C6/36 cells. Target products were obtained by amplification using specific primers for Omono River virus (OMRV) and Tianjin Totivirus (ToV-TJ). ML-13 virus showed the highest sequence similarities (76%, 75%, 72%, 67%, and 67%) with OMRV-AK4, ToV-TJ, OMRV-Y61, DTV, and AsTV with regard to capsid protein (CP) and RNA-dependent RNA polymerase (RdRp). The phylogenetic analysis showed that ML-13 was in the same branch as OMRV, ToV-TJ, and DTV in Totiviridae family. Conclusion ML-13 strain isolated from Culex tritaeniorhynchus in Yunnan province, China belongs to the Totiviridae family and is the first isolate of Totivirus from Cx. tritaeniorhynchus in China.

Key words: Arbovirus, Totivirus, Molecular biological identification

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