山西省武乡县1株白蛉携带病毒（SXWX1816-2）的分离与鉴定

doi:10.11853/j.issn.1003.8280.2023.02.021

中国媒介生物学及控制杂志 ›› 2023, Vol. 34 ›› Issue (2): 270-275.DOI: 10.11853/j.issn.1003.8280.2023.02.021

山西省武乡县1株白蛉携带病毒（SXWX1816-2）的分离与鉴定

殷启凯¹, 王晶^1,2, 付士红¹, 聂凯¹, 李樊¹, 何英¹, 许松涛¹, 王环宇¹, 梁国栋¹

1. 中国疾病预防控制中心病毒病预防控制所虫媒室, 北京 102206;
2. 中山大学医学院, 广东深圳 518107

收稿日期:2022-10-27 出版日期:2023-04-20 发布日期:2023-04-26
通讯作者: 王环宇,E-mail：wanghy@ivdc.chinacdc.cn;梁国栋,E-mail：gdliang@hotmail.com
作者简介:殷启凯,男,硕士,助理研究员,主要从事虫媒病毒病原学的相关研究,E-mail：yinqk@ivdc.chinacdc.cn;王晶,女,在读博士,主要从事通过高通量测序、病毒分离和生物信息学的方法来进行新病原的发现和病毒的遗传进化研究,E-mail：wangj796@mail2.sysu.edu.cn;付士红,女,副主任技师,主要从事病毒性病原生物相关研究,E-mail：fush@ivdc.chinacdc.cn
基金资助:
传染病预防控制国家重点实验室项目（2015SKLID505）

Isolation and identification of a sandfly-borne virus （SXWX1816-2） in Wuxiang county, Shanxi province, China

YIN Qi-kai¹, WANG Jing^1,2, FU Shi-hong¹, NIE Kai¹, LI Fan¹, HE Ying¹, XU Song-tao¹, WANG Huan-yu¹, LIANG Guo-dong¹

1. Department of Arboviruses, Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China;
2. School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong 518107, China

Received:2022-10-27 Online:2023-04-20 Published:2023-04-26
Supported by:
Development Grant of State Key Laboratory of Infectious Disease Prevention and Control (No. 2015SKLID505)

摘要/Abstract

摘要： 目的调查山西省武乡县白蛉标本携带病毒的种类及其流行情况。方法 2018年6月在山西省武乡县采集白蛉标本，使用实验室保存的金黄地鼠肾细胞（BHK-21细胞）和白纹伊蚊卵细胞（C6/36细胞）2种细胞系进行病毒分离，阳性分离物经病毒RNA提取、cDNA文库制备后，进行病毒基因扩增与核苷酸序列测定及系统进化分析。结果 SXWX1816-2病毒分离株可引起哺乳动物细胞（BHK-21细胞）病变，但是对昆虫细胞（C6/36细胞）并不引起病变。病毒基因组核苷酸序列测定和分析结果显示该病毒M基因和S基因编码区核苷酸序列长度分别为4 089和1 611 nt；病毒M基因和S基因核苷酸/氨基酸序列同源性分析和分子遗传进化分析结果均表明SXWX1816-2分离株隶属于白纤病毒科白蛉病毒属，并与我国此前分离的武乡病毒（Wuxiang virus，WUXV）的同源性最高，病毒基因分子遗传进化关系最近。结论明确了我国白蛉分离病毒（SXWX1816-2）的分类地位，研究结果为我国吸血昆虫携带病毒，特别是白蛉携带和传播病毒的研究提供了重要的基础数据。

关键词: 白蛉, 白蛉传播病毒, 武乡病毒

Abstract: Objective To investigate the species and prevalence of viruses carried by sandfly specimens in Wuxiang county, Shanxi province, China. Methods Sandfly specimens were collected in Wuxiang county, Shanxi province in June 2018, and virus isolation was conducted using two cell lines of golden hamster kidney cells (BHK-21 cells) and Aedes albopictus egg cells (C6/36 cells) preserved in the laboratory. The positive isolate was subjected to viral RNA extraction and cDNA library preparation, followed by viral gene amplification, nucleotide sequence determination, and phylogenetic analysis. Results The SXWX1816-2 strain caused cytopathic effects in mammalian cells (BHK-21 cells), but no cytopathic effect in insect cells (C6/36 cells). The results of nucleotide sequence determination and analysis of the virus genome showed that the lengths of nucleotide sequences in the coding region of M and S genes of the virus were 4 089 and 1 611 nt; the results of nucleotide and amino acid sequence homology and phylogenetic analysis of M and S genes of the virus showed that the SXWX1816-2 strain belonged to the Phlebovirus genus from the Phenuiviridae family, which shared the highest homology and closest phylogenetic relationship with Wuxiang virus (WUXV) previously isolated in China. Conclusions This study clarifies the taxonomic status of the virus (SXWX1816-2) isolated from natural sandflies in China. The results provide important basic data for the research on viruses carried by blood-sucking insects in China, especially the virus carried and transmitted by sandflies.

Key words: Sandfly, Sandfly-borne virus, Wuxiang virus

中图分类号:

殷启凯, 王晶, 付士红, 聂凯, 李樊, 何英, 许松涛, 王环宇, 梁国栋. 山西省武乡县1株白蛉携带病毒（SXWX1816-2）的分离与鉴定[J]. 中国媒介生物学及控制杂志, 2023, 34(2): 270-275.

YIN Qi-kai, WANG Jing, FU Shi-hong, NIE Kai, LI Fan, HE Ying, XU Song-tao, WANG Huan-yu, LIANG Guo-dong. Isolation and identification of a sandfly-borne virus （SXWX1816-2） in Wuxiang county, Shanxi province, China[J]. Chinese Journal of Vector Biology and Control, 2023, 34(2): 270-275.

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山西省武乡县1株白蛉携带病毒（SXWX1816-2）的分离与鉴定

Isolation and identification of a sandfly-borne virus （SXWX1816-2） in Wuxiang county, Shanxi province, China

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