›› 2015, Vol. 42 ›› Issue (4): 859-864.doi: 10.16431/j.cnki.1671-7236.2015.04.013

• 生物技术 • 上一篇    下一篇

鸡传染性贫血病毒SYBR Green Ⅰ实时荧光定量PCR检测方法的建立

杨丽聪1,2, 苏霞2, 朱瑞豪2, 周宏专2, 徐福州2, 杨兵2, 孙继国1   

  1. 1. 河北农业大学动物医学院, 保定 071000;
    2. 北京市农林科学院畜牧兽医研究所 畜禽疫病防控技术北京市重点实验室, 北京 100097
  • 收稿日期:2014-11-21 出版日期:2015-04-20 发布日期:2015-05-05
  • 通讯作者: 杨兵, 孙继国 E-mail:byang111@yeah.net;sunjiguo2000@aliyun.com
  • 作者简介:杨丽聪(1987-),女,河北衡水人,硕士,研究方向:兽医卫生检验,E-mail:yanglicong2014@163.com
  • 基金资助:
    北京市农林科学院青年基金(QNJJ201208)

Development of a SYBR Green Ⅰ Real-time PCR Method for Detection of Chicken Infectious Anemia Virus

YANG Li-cong1,2, SU Xia2, ZHU Rui-hao2, ZHOU Hong-zhuan2, XU Fu-zhou2, YANG Bing2, SUN Ji-guo1   

  1. 1. College of Veterinary Medicine, Agricultural University of Hebei, Baoding 071000, China;
    2. Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
  • Received:2014-11-21 Online:2015-04-20 Published:2015-05-05

摘要: 为建立鸡传染性贫血病毒(chicken infectious anemia virus,CIAV)的实时荧光定量PCR检测方法,本试验通过CIAV基因组保守区域设计1对扩增片段大小为180 bp的特异性引物,构建pGM-T-CIAV重组质粒,制备阳性标准品,建立SYBR GreenⅠ实时荧光定量PCR标准曲线,并进行敏感性试验、特异性试验和重复性试验.结果显示,CIAV的Ct阈值与标准品浓度在5.33×108至5.33×103拷贝/μL间呈良好的线性关系,相关系数R2=0.998,斜率为-3.443,产物Tm值在86 ℃左右.该方法与网状内皮组织增生病病毒(REV)、禽白血病病毒(ALV)J亚型、马立克氏病病毒(MDV)、传染性法氏囊病病毒(IBDV)基因组均无交叉反应,敏感性为5.33拷贝/μL,比普通PCR高1 000倍,批内和批间重复试验变异系数均小于3%.结果表明,本试验建立的CIAV SYBR GreenⅠ实时荧光定量PCR检测方法可实现对鸡传染性贫血病的早期诊断及感染程度的定量分析的检测.

关键词: 鸡传染性贫血病毒; 实时荧光定量PCR; SYBR GreenⅠ; 定量分析

Abstract: The aim of this study was to develop a Real-time PCR method for detection of chicken infectious anemia virus (CIAV). According to the CIAV genome conservative area, a pair of specific primers which could amplify about 180 bp fragment was designed. By building the pGM-T-CIAV recombinant plasmid, and preparing positive standard, the SYBR GreenⅠReal-time PCR standard curve was established. At the same time, sensitivity test, specificity test and repeatability test were determined. The results indicated that CIAV Ct threshold had good linear relationship with the standard concentration. The correlation rate and slope were 0.998 and -3.443, respectively. The Tm was about 86 ℃. No cross-reactions were found between REV, ALV J subtype, MDV and IBDV. The sensibility was 5.33 coppies/μL, which was 1 000 times than the traditional PCR. The coefficient of variation value was less than 3%. The CIAV SYBR Green Ⅰ Real-time PCR detection method could be realized on the early diagnosis of the disease and infection degree quantitative analysis of the test.

Key words: chicken infectious anemia virus (CIAV); Real-time PCR; SYBR Green Ⅰ; quantitative analysis

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