›› 2008, Vol. 1 ›› Issue (9): 30-33.

• 生物技术 • 上一篇    下一篇

检测猪圆环病毒2型SYBR Green I荧光定量PCR方法的建立

张锦秀1,晁生玉1,2,丁敏1,李刚1
  

  1. 1.中国农业科学院北京畜牧兽医研究所,北京 100193; 2.青海省海西州畜牧兽医科学研究所,德令哈 817000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-09-20 发布日期:2008-09-20

Establishment of SYBR Green I Real-time PCR Aaasy forDetection of Porcine Circovirus Type 2

ZHANG Jinxiu1,CHAO Shengyu1,2,DING Min1,LI Gang1
  

  1. 1. Institute of Animal Science,Chinese Academy of Agricultural Sciences, Beijing 100193,China;2.Institute of Animal Sciences,Haixi Autonomous Prefecture,Delingha 817000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-09-20 Published:2008-09-20

摘要: 猪圆环病毒2型(PCV-2)ORF2(开放阅读框2)基因编码其核衣壳蛋白,它含有导致病毒致病性的多个抗原决定簇位点。根据ORF2基因序列设计特异性引物,以感染PCV-2的Dulac细胞冻融上清为模板,克隆该开放阅读框的全基因序列。然后以该重组质粒为模板,选择其异于PCV-1的保守序列,设计PCR引物,采用两步法,建立了检测PCV-2快速简捷的SYBR Green I荧光定量PCR方法。多次试验证明,该方法具有良好的重复性。同时针对与PCV-2共感染的其它病毒进行特异性检测,进一步证明该方法可以快速、特异、灵敏地检测PCV-2。

关键词: 猪圆环病毒2型; Dulac细胞; SYBR Green I荧光定量PCR

Abstract: Porcine circovirus type 2 ORF2 encodes the capsid protein which contains major immunoreactive epitopes.The whole sequence of the ORF2 was amplified with a special pair of primers and cloned into vectors.The PCV-2 DNA was obtained from the supernatant of PCV-2 infected Dulac cells after freeze thrawing.Then a two-step method of SYBR Green I Real-time PCR amplification was established for the rapid and sensitive detection of PCV2.The detection results confirmed that the established method was rapid, specific and sensitive.

Key words: porcine circovirus type 2; Dulac cells; SYBR Green I Real-time PCR

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