《中国畜牧兽医》 ›› 2016, Vol. 43 ›› Issue (9): 2455-2460.doi: 10.16431/j.cnki.1671-7236.2016.09.034

• 疾病防治 • 上一篇    下一篇

猪流行性腹泻病毒与猪伪狂犬病病毒二重RT-PCR检测方法的建立及应用

孙彦琴1, 马震原2, 闫若潜2, 王东方2, 曹伟伟2, 郭育培2   

  1. 1. 河南省动物卫生监督所, 郑州 450008;
    2. 河南省动物疫病预防控制中心, 郑州 450008
  • 修回日期:2016-07-06 出版日期:2016-09-20 发布日期:2016-09-20
  • 通讯作者: 闫若潜 E-mail:yrq1688@126.com
  • 作者简介:孙彦琴(1965-),女,山东滕州人,大专,高级兽医师,研究方向:动物疫病分子诊断,E-mail:yanqinsun1@163.com;马震原(1986-),女,河南郑州人,硕士,助理兽医师,研究方向:动物疫病防控技术,E-mail:mazhenyuan.1986@163.com
  • 基金资助:

    河南省科技攻关项目(142102310224)

Establishment and Application of Duplex RT-PCR Assay for Detection of Porcine Epidemic Diarrhea Virus and Pseudorabies Virus

SUN Yan-qin1, MA Zhen-yuan2, YAN Ruo-qian2, WANG Dong-fang2, CAO Wei-wei2, GUO Yu-pei2   

  1. 1. Henan Provincial Animal Health Inspection Agency, Zhengzhou 450008, China;
    2. Henan Center for Animal Disease Control and Prevention, Zhengzhou 450008, China
  • Revised:2016-07-06 Online:2016-09-20 Published:2016-09-20

摘要:

为建立猪流行性腹泻病毒(PEDV)与猪伪狂犬病病毒(PRV)的快速鉴别检测方法,本研究根据GenBank已登录的PEDV膜蛋白M基因和PRV gE基因保守区域序列设计了2对特异性引物,以PRV和PEDV混合总RNA为反转录模板,初步建立了PRV和PEDV的二重RT-PCR检测方法,并进行了特异性、敏感性、重复性验证和临床应用检测。结果显示,该方法对两种病毒的最低检测限均为10 TCID50/mL病毒含量,重复性好,特异性强,可特异性地扩增PEDV和PRV细胞培养物,但对其他7种病原对照扩增不出任何条带,对26份临床疑似PEDV和PRV感染样品检测结果与测序鉴定结果完全一致。本研究成功建立了PEDV和PRV的二重RT-PCR检测方法,为临床上猪流行性腹泻和猪伪狂犬病的快速鉴别诊断提供了方法。

关键词: 猪流行性腹泻病毒; 猪伪狂犬病病毒; 二重RT-PCR

Abstract:

In order to establish an assay for detecting porcine epidemic diarrhea virus (PEDV) and pseudorabies virus (PRV),two pairs of primers were designed basing on the M gene of PEDV and gE gene of PRV,respectively.The total RNA of standard PEDV and PRV strains were used as templates to establish the duplex RT-PCR assay.The specificity,sensitivity,repetition and clinic detection of the established assay were tested.The result revealed that the threshold of duplex RT-PCR was 10 TCID50/mL of PEDV and PRV,and no products were amplified from the cell or the nucleic acid of other 7 kinds of pathogenic viral or bacterial microorganism.The detection results for 26 clinical suspicious PEDV or PRV infected pigs were consistent with the results tested by sequencing.This study suggested that the duplex RT-PCR method was highly specific,repeatable and sensitive,and was suitable for clinic rapid differential diagnosis of PEDV and PRV.

Key words: porcine epidemic diarrhea virus; pseudorabies virus; duplex RT-PCR

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