《中国畜牧兽医》 ›› 2016, Vol. 43 ›› Issue (12): 3101-3106.doi: 10.16431/j.cnki.1671-7236.2016.12.003

• 生物技术 • 上一篇    下一篇

H9和H6亚型禽流感病毒二重RT-PCR检测方法的建立

李丹1, 谢芝勋2, 宋德贵1, 李孟2, 谢志勤2, 罗思思2, 谢丽基2, 黄莉2, 范晴2, 黄娇玲2   

  1. 1. 广西师范大学生命科学学院, 桂林 541000;
    2. 广西壮族自治区兽医研究所, 广西兽医生物技术重点实验室, 南宁 530001
  • 收稿日期:2016-04-25 出版日期:2016-12-20 发布日期:2016-12-22
  • 通讯作者: 谢芝勋 E-mail:xiezhixun@126.com
  • 作者简介:李丹(1990-),女,广西桂林人,硕士生,研究方向:微生物学,E-mail:1176231278@qq.com
  • 基金资助:

    国家“万人计划”领军人才专项(2016-37-88);广西科技项目(2013GXNSFDA019015、AD163800009、14123001-8);广西水产畜牧局科研项目(桂渔牧科201204930、201452001)

Development of a Duplex RT-PCR Assay for Detection of H9 and H6 Subtype AIV

LI DAN1, XIE Zhi-xun2, SONG De-gui1, LI Meng2, XIE Zhi-qin2, LUO Si-si2, XIE Li-ji2, HUANG Li2, FAN Qing2, HUANG Jiao-ling2   

  1. 1. College of Life Sciences, Guangxi Normal University, Guilin 541000, China;
    2. Guangxi Key Laboratory of Vetrinary Biotechnology, Guangxi Veterinary Research Institute, Nanning 530001, China
  • Received:2016-04-25 Online:2016-12-20 Published:2016-12-22

摘要:

试验旨在建立可同时鉴别检测H9和H6亚型禽流感病毒(avian influenza virus,AIV)的二重RT-PCR方法。根据GenBank中H9和H6亚型AIV的HA基因保守序列,分别设计2对特异性引物,优化引物浓度与退火温度等条件,建立了可同时鉴别检测H9和H6亚型AIV的二重RT-PCR检测方法。用该法对H9和H6亚型AIV混合感染样品、H9亚型AIV单一感染样品和H6亚型AIV单一感染样品进行扩增,结果均得到对应的目的条带,而对其余亚型AIV及其他禽病病原体均未扩增出特异性条带。该法对H9和H6亚型AIV的检测下限均为5×104拷贝/μL。本研究建立的二重RT-PCR检测方法特异性强、敏感性高、稳定性和重复性良好,可同时鉴别检测H9与H6两种亚型AIV,为H9与H6亚型AIV的监测提供技术支撑。

关键词: 禽流感病毒; H9亚型; H6亚型; 二重RT-PCR

Abstract:

This experiment was aimed to develop a method for simultaneous detection of H9 and H6 subtype avian influenza virus (AIV).Two pairs of specific primers were designed according to the conserved regions sequences of H6 and H9 AIV HA gene,a duplex RT-PCR simultaneous detection of H9 and H6 subtype AIV was developed by optimizing the PCR system such as the concentration of different primers and annealing temperature.It showed that all samples could be amplified specific bands from H9 subtype AIV single infection samples or H6 subtype AIV single infection samples,and the samples mix infection these two subtypes AIV.No specific bands of the same sizes were amplified from genomic materials of other avian pathogens.The detection limit of the duplex RT-PCR was 5×104 copies/μL. It suggested that this duplex RT-PCR assay was a specific,sensitive,stable and repeatable method for detection of H9 and H6 subtype of AIV,and could provide technical support for the monitoring of H9 and H6 subtype AIV.

Key words: avian influenza virus; H9 subtype; H6 subtype; duplex RT-PCR

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