›› 2015, Vol. 58 ›› Issue (9): 959-965.

• 研究论文 • 上一篇    下一篇

重庆中华蜜蜂囊状幼虫病病毒多聚蛋白基因分子特性分析

沈克飞#, 曹兰#, 郑华, 杨柳, 张邑帆, 张素辉*   

  1. (重庆市畜牧科学院, 重庆 402460)
  • 出版日期:2015-09-20 发布日期:2015-09-20
  • 作者简介:沈克飞, 男, 1980年12月生, 安徽六安人, 硕士, 助理研究员, 从事蜜蜂保护学研究, E-mail: coffeeshine@163.com; 曹兰, 女, 1980年10月生, 重庆江津人, 本科, 助理研究员, 从事蜜蜂保护学研究, E-mail: fyscl2010@163.com

Molecular characterization of the polyprotein gene of sacbrood virus isolated from Apis cerana cerana in Chongqiong, southwestern China

SHEN Ke-Fei#, CAO Lan#, ZHENG Hua, YANG Liu, ZHANG Yi-Fan, ZHANG Su-Hui*   

  1. (Chongqing Academy of Animal Sciences, Chongqing 402460, China)
  • Online:2015-09-20 Published:2015-09-20

摘要: 【目的】分析地处中国南方的重庆地区中华蜜蜂 Apis cerana cerana(简称“中蜂”)囊状幼虫病病毒(sacbrood virus, SBV)(AcSBV-S.Chn-CQ)的遗传特性。【方法】采用RT-PCR法对采自重庆23个区县的阳性中蜂幼虫进行SBV多聚蛋白基因扩增、序列测定和序列分析,采用邻接法(neighbor-joining method)基于基因组和基因组片段SB11-SB12构建系统进化树,使用RDP3检测SBV的基因重组。【结果】AcSBV-S.Chn-CQ与中国南方中蜂SBV(AcSBV-S.Chn)其他分离株、越南北部东方蜜蜂 A. cerana SBV(AcSBV-N.Vie)、越南北部西方蜜蜂 A. mellifera SBV(AmSBV-N.Vie)、韩国东方蜜蜂SBV(AcSBV-S.Kor)的同源性较高。AcSBV-S.Chn-CQ在结构蛋白编码区域存在连续51个核苷酸缺失,在非结构蛋白编码区域有3个不连续的核苷酸缺失,与AcSBV-N.Vie, AmSBV-N.Vie和AcSBV-S.Kor核苷酸缺失相同。AcSBV-S.Chn-CQ与AcSBV-S.Chn-FZ, AcSBV-N.Vie, AmSBV-N.Vie和AcSBV-S.Kor在亚洲基因型中形成一亚型,亚型内检测到重组事件。【结论】推测AcSBV-S.Chn-CQ与SBV-N.Vie和AcSBV-S.Kor可能来自一个共同祖先。

关键词: 中华蜜蜂, 囊状幼虫病病毒, 多聚蛋白基因, 核苷酸缺失, 系统进化

Abstract: 【Aim】 This study aims to analyze the genetic characteristics of sacbrooe virus (SBV) isolated from Apis cerana cerana in Chongqing, southwestern China (AcSBV-S.Chn-CQ). 【Methods】 The polyprotein gene of SBV was amplified by RT-PCR from samples of A. c. cerana  larvae infected with SBV, which originated from 23 districts or counties in Chongqing, sequenced and analyzed. Phylogenetic trees were constructed using neighbor-joining method based on SBV genome, and the genomic region SB11-SB12. RDP3 was used to detect the genetic recombination. 【Results】 AcSBV-S.Chn-CQ showed high homologies with other SBV isolates from  A. c. cerana in South China (AcSBV-S.Chn), the SBV infecting  A. cerana and A. mellifera in North Vietnam (AcSBV-N.Vie and AmSBV-N.Vie) and the SBV infecting A. cerana in South Korea (AcSBV-S.Kor). AcSBV-S.Chn-CQ has a consecutive 51-nucleotide deletion along the structural protein-coding region and an inconsecutive 3-nucleotide deletion along the nonstructural protein-coding region, and its nucleotide deletion is identical to those of AcSBV-N.Vie, AmSBV-N.Vie and AcSBV-S.Kor. AcSBV-S.Chn-CQ, AcSBV-S.Chn-FZ, AcSBV-N.Vie, AmSBV-N.Vie and AcSBV-S.Kor formed a subtype within the Asian genotype, and recombination events were detected in the isolates within this subtype. 【Conclusion】 AcSBV-S.Chn-CQ, SBV-N.Vie and AcSBV-S.Kor may share a common origin.

Key words: Apis cerana cerana, sacbrood virus (SBV), polyprotein gene, nucleotide deletion, phylogeny