浙江农业学报 ›› 2021, Vol. 33 ›› Issue (10): 1817-1825.DOI: 10.3969/j.issn.1004-1524.2021.10.04

• 动物科学 • 上一篇    下一篇

安徽合肥地区2018—2019年犬细小病毒遗传进化分析

姬凯元(), 邱月阳, 程敖, 蒋书东, 彭梦玲   

  1. 安徽农业大学 安徽省畜禽遗传资源保护与生物育种重点实验室,安徽 合肥 230036
  • 收稿日期:2020-09-03 出版日期:2021-10-25 发布日期:2021-11-02
  • 作者简介:姬凯元(1987—),男,山东烟台人,博士,讲师,从事临床兽医学研究。E-mail: 18234487253@163.com
  • 基金资助:
    安徽农业大学校青年基金(03087060);安徽省教育厅自然科学基金(KJ2019A0165)

Genetic diversity of Canine parvovirus in Hefei, Anhui Province from 2018 to 2019

JI Kaiyuan(), QIU Yueyang, CHENG Ao, JIANG Shudong, PENG Mengling   

  1. Anhui Key Laboratory of Genetic Resources Protection and Biological Breeding for Livestock and Poultry, Anhui Agricultural University, Hefei 230036, China
  • Received:2020-09-03 Online:2021-10-25 Published:2021-11-02

摘要:

为掌握安徽地区犬细小病毒(CPV)的遗传变异情况,采用PCR法扩增2018—2019年安徽地区收集的10株CPV全基因组,采用生物信息学分析安徽地区CPV遗传进化特点与VP2抗原的变异情况。遗传进化分析发现,安徽地区分离的10株CPV主要以CPV-2c亚型为主,起源于CPV-2aB004(EF011664)和CPV-LZ1(JQ268283)株,正在形成一个独立的分支;NS1基因和VP2基因在遗传进化分支中出现不同步现象,为CPV基因重组提供了依据。VP2蛋白保守性分析发现,安徽分离的CPV毒株的VP2蛋白存在部分氨基酸位点的突变,是否对VP2蛋白的结构和功能产生影响需进一步探究。本研究通过分析安徽地区CPV的遗传进化特点与VP2蛋白氨基酸位点突变特征,为CPV的研究提供了参考。

关键词: 犬细小病毒, 全基因组, 遗传进化

Abstract:

In order to understand the genetic variation of Canine parvovirus (CPV) in Anhui, the whole genome of 10 CPV strains collected in Anhui during 2018—2019 was amplified by PCR, and the genetic evolution characteristics of CPV and the variation of VP2 antigen in Anhui were analyzed by bioinformatics. Genetic evolution analysis showed that the 10 strains of CPV isolated in Anhui were mainly CPV-2c subtypes, originating from CPV-2AB004 (EF011664) and CPV-LZ1 (JQ268283), forming an independent branch. NS1 gene and VP2 gene showed an asynchronous phenomenon in the branch of genetic evolution, which provided the basis for the recombination of CPV gene. Amino acid mutation analysis revealed that VP2 protein of the CPV strain isolated from Anhui Province had some amino acid site mutations, and further research is needed to determine whether it has an impact on the structure and function of VP2 protein.This study provided reference for the study of CPV by analyzing the genetic evolution characteristics of CPV in Anhui Province and the amino acid site mutation characteristics of VP2 protein.

Key words: Canine parvovirus, whole genome, genetic evolution

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