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Position: Home > Articles > Development of a Trilex PCR Assay for Detection of Newcastle Disease Virus,Plague Virus and Circovirus in Ducks Progress in Veterinary Medicine 2013,34 (4) 23-26

鸭源新城疫病毒、鸭瘟病毒和鸭圆环病毒三重PCR检测方法的建立

作  者:
许宗丽;谢芝勋;谢丽基;刘加波;邓显文;谢志勤;庞耀珊;范晴;罗思思
单  位:
广西大学动物科学技术学院;广西壮族自治区兽医研究所
关键词:
鸭源新城疫病毒;鸭瘟病毒;鸭圆环病毒;三重PCR
摘  要:
为了建立能同时检测鸭源新城疫病毒(DuNDV)、鸭瘟病毒(DPV)和鸭圆环病毒(DuCV)的方法,根据DuNDV、DPV和DuCV基因的保守序列设计了3对特异性引物,预特异扩增DuNDV片段大小为823bp,DPV为576bp和DuCV为338bp。经过反应条件的优化,建立了DuNDV、DPV和DuCV的三重PCR检测方法。该方法特异性好,对鸭的其他病原检测结果为阴性;敏感性高,DuNDV、DPV和DuCV的核酸最低检出限分别为2.59×103、1.12×103、4.67×102拷贝/μL。对180份病料进行检测,结果DuCV阳性10份,阳性率为5.6%;DuNDV阳性1份,阳性率为0.56%。结果表明,建立的多重PCR方法可以应用于DuNDV、DPV和DuCV的临床检测和流行病学调查。
译  名:
Development of a Trilex PCR Assay for Detection of Newcastle Disease Virus,Plague Virus and Circovirus in Ducks
作  者:
XU Zong-li1,2,XIE Zhi-xun2,XIE Li-ji2,LIU Jia-bo2, DENG Xian-wen2,XIE Zhi-qin2,PANG Yao-shan2,FAN Qing2,LUO Si-si2(1.College of Veterinary Medicine,Guangxi University,Nanning,Guangxi,530004,China;2.Guangxi Veterinary Research Institute,Guangxi Key Laboratory of Animal Vaccines and New Technology,Nanning,Guangxi,530001,China)
关键词:
Duck Newcastal disease virus;Duck plague virus;Duck circovirus;triplex PCR
摘  要:
To develop a rapid triplex PCR assay for detection of Newcastal disease virus,plague virus and circovirus in ducks,three pairs of specific primers were designed according to the sequences of DuNDV gene,DPV gene and DuCV gene in GenBank,of which one specifically amplified 823 bp gene fragment of duck paramyxo virus,the others amplified 576 bp gene fragment of duck plague virus and 338 bp gene fragment of duck circovirus.And the reaction conditions were optimized to develop a duplex PCR assay for detection of Newcastal disease virus,plague virus and circovirus in ducks.The method has high specificity and sensitivity.As little as 2.59×103 copies/μL of NDV,1.12×103 copies/μL DPV and 4.67×102 copies/μL of DuCV DNA or cDNA could be detected.Furthemore,the established assay was successfully used to detect 180 clinical samples,of which 10 samples were positive for DuCV and 1sample for NDV.These results suggest that the multiplex PCR assay was suitable for rapid detection and epidemic surveillance of NDV,DPV and DuCV.

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