畜牧与饲料科学 ›› 2025, Vol. 46 ›› Issue (1): 114-119.doi: 10.12160/j.issn.1672-5190.2025.01.015

• 动物疾病防控 • 上一篇    下一篇

新疆维吾尔自治区喀什地区某引种奶牛场新生犊牛的牛轮状病毒分子检测及遗传特征分析

李平, 张博文, 朱亚楠, 苏朵朵, 李静, 井波, 张振杰, 齐萌   

  1. 塔里木大学动物科学与技术学院/新疆生产建设兵团塔里木动物疫病诊断与防控工程实验室/农业农村部环塔里木畜草资源利用重点实验室,新疆 阿拉尔 843300
  • 收稿日期:2024-11-13 出版日期:2025-01-30 发布日期:2025-04-03
  • 通讯作者: 齐萌(1985—),男,教授,博士,硕士生导师,主要研究方向为动物疫病病原生物学。张振杰(1991—),男,副教授,博士,主要研究方向为动物微生物学与免疫学。
  • 作者简介:李平(2000—),男,硕士,主要研究方向为兽医公共卫生学。
  • 基金资助:
    塔里木大学校长基金胡杨英才(博士)项目(TDZKBS202412); 新疆维吾尔自治区天池英才青年博士计划项目

Molecular Detection and Genetic Characterization of Bovine Rotavirus in Neonatal Calves from an Introduced Dairy Farm in the Kashgar Region of the Xinjiang Uygur Autonomous Region

LI Ping, ZHANG Bowen, ZHU Yanan, SU Duoduo, LI Jing, JING Bo, ZHANG Zhenjie, QI Meng   

  1. College of Animal Science and Technology, Tarim University/Tarim Animal Disease Diagnosis and Control Engineering Laboratory of Xinjiang Production and Construction Corps/Key Laboratory of Livestock and Forage Resources Utilization around Tarim, Ministry of Agriculture and Rural Affairs, Alar 843300, China
  • Received:2024-11-13 Online:2025-01-30 Published:2025-04-03

摘要: [目的]了解引种奶牛场新生犊牛的牛轮状病毒感染情况和分子遗传特征。[方法]采集新疆维吾尔自治区喀什地区某引种奶牛场<3月龄犊牛粪便样本50份,采用RT-PCR方法检测牛轮状病毒感染情况,根据序列分析结果鉴定基因型并进行系统发育分析。[结果]基于VP6基因检测出6份样本呈牛轮状病毒阳性,该引种奶牛场犊牛的牛轮状病毒感染率为12.00%(6/50);基于牛轮状病毒VP7基因序列分析,6份阳性样本存在2种基因型,分别为G6(n=4)基因型和G8基因型(n=2);基于牛轮状病毒VP4基因序列分析,6份阳性样本均为P[5]型;鉴定该引种奶牛场牛轮状病毒基因型有2种,分别为G6P[5]型(n=4)和G8P[5]型(n=2)。系统发育进化分析显示,G6基因型与土耳其牛轮状病毒遗传距离较近,G8基因型与日本人轮状病毒遗传距离较近;P[5]基因型与伊朗牛轮状病毒遗传距离较近。[结论]该引种奶牛场犊牛携带的牛轮状病毒存在遗传多样性,G6P[5]型为优势基因型。首次发现新疆喀什地区牛轮状病毒存在G8P[5]型,研究结果为新疆南疆牛轮状病毒病的防控提供了参考。

关键词: 轮状病毒, 检测, 鉴定, 遗传进化,

Abstract: [Objective] To investigate the infection status and molecular genetic characteristics of bovine rotavirus in neonatal calves from an introduced dairy farm in the Kashgar region of the Xinjiang Uygur Autonomous Region. [Methods] Fecal samples were collected from 50 calves under three months of age at the dairy farm in Kashgar. The presence of bovine rotavirus was detected using RT-PCR, and the resultant sequences were subjected to genotype determination and phylogenetic analysis. [Results] Based on VP6 gene detection, 6 tested positive for bovine rotavirus, yielding an infection rate of 12.00% (6/50). Sequence analysis of the VP7 gene from the six positive samples revealed two genotypes: G6 (n=4) and G8 (n=2). Analysis of the VP4 gene indicated that all 6 positive samples belonged to the P[5] type. Consequently, two bovine rotavirus genotypes were identified at the dairy farm, namely G6P[5] (n=4) and G8P[5](n=2). Phylogenetic analysis demonstrated that the G6 genotype was closely related to bovine rotavirus strains from Turkey, whereas the G8 genotype showed closer genetic proximity to human rotavirus strains from Japan; the P[5] genotype was most similar to bovine rotavirus strains from Iran. [Conclusion] The bovine rotavirus detected in the calves of this dairy farm exhibits considerable genetic diversity, with the G6P[5] genotype being predominant. The study is the first to report the presence of the G8P[5] genotype in bovine rotavirus in the Kashgar region of Xinjiang, thereby providing valuable insights for the prevention and control of bovine rotavirus infections in southern Xinjiang.

Key words: rotavirus, detection, identification, genetic evolution, cattle

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