中国畜牧兽医 ›› 2013, Vol. 40 ›› Issue (8): 30-33.

• 生物技术 • 上一篇    下一篇

Ⅰ群禽腺病毒套式PCR检测方法的建立及应用

索南卓玛, 增巴   

  1. 青海省海南州同德县畜牧兽医工作站, 青海同德 813200
  • 收稿日期:2012-12-24 出版日期:2013-08-20 发布日期:2013-08-16
  • 作者简介:索南卓玛(1972- ),女,青海人,学士,兽医师,研究方向:畜牧兽医。

Establishment and Application of a Nested PCR Assay for Detection of Fowl Adenovirus Group Ⅰ

SUO NAN Zhuo-ma, ZENG Ba   

  1. The Station of Animal Husbandry and Veterinary in Tongde County Hainan Prefecture of Qinghai Province, Tongde 813200, China
  • Received:2012-12-24 Online:2013-08-20 Published:2013-08-16

摘要: 根据Ⅰ群禽腺病毒(fowl adenovirus Ⅰ,FAVⅠ)六邻体(hexon)基因序列,设计合成2对引物,建立了适合FAVⅠ快速检测的套式PCR方法(nested PCR)。应用该方法对FAVⅠ阳性毒株及临床病料进行检测,2步PCR扩增片段大小分别为475和237 bp,而其他7种禽源病毒的扩增结果均为阴性;该套式PCR方法扩增的敏感性为100 pg和1 fg,敏感性提高了105倍;所建立的FAVⅠ套式PCR方法大大提高了常规PCR的特异性和敏感性,重复性好,可以检测出极低含量的FAVⅠ,可用于FAVⅠ的临床诊断和分子流行病学调查等。

关键词: Ⅰ群禽腺病毒; 六邻体基因; 套式PCR; 检测

Abstract: According to the sequence of hexon gene of fowl adenovirus groupⅠ(FAVⅠ) strain published in GenBank,two pairs of primers were designed and synthesized.The outer primers amplified a fragment of 475 bp in length, and the inner primers amplification fragment was 237 bp in length. A nested PCR assay for rapid detection of FAVⅠ was established.A specific 237 bp fragment was amplified from DNA templates of FAVⅠstrain,but no bands were amplified with templates extracted respectively from avian influenza virus (AIV) subtype H9,Newcastle disease virus (NDV), infectious bursal disease virus (IBDV),duck plague virus (DPV), reticuloendotheliosis (REV), avian reovirus (ARV), Marek's disease virus (MDV). Sensitivity of the 1st and 2nd amplifications by the nested PCR assay were 100 pg and 1 fg,respectively.The sensitivite of the 2nd amplifications increased by 105 times.The results showed that the nested PCR was specific,sensitive,rapid,accurate,and could be used as a routine assay for the detection of FAVⅠ.This method had good reproducibility, specificity and sensitivity, and might detect low content FAVⅠ accurately and rapidly. This method could be used as a method for the diagnosis and detection of clinical cases,and molecular epidemiological investigation of FAVⅠ.

Key words: fowl adenovirus groupⅠ; hexon gene; nested PCR; detection

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