Development and Validation of One-Step SYBR Green Real-Time RT-PCR for the Rapid Detection of Newly Emerged Duck Tembusu Virus

文献类型： 外文期刊

第一作者： Liu, Zongliang

作者： Liu, Zongliang;Fu, Yuguang;Ji, Yanhong;Cai, Xuepeng;Zhu, Qiyun;Wei, Jianzhong

作者机构：

关键词： duck Tembusu virus;SYBR Green real-time RT-PCR;one-step

期刊名称：AVIAN DISEASES （ 影响因子：1.577； 五年影响因子：1.915 ）

ISSN： 0005-2086

年卷期： 2013 年 57 卷 3 期

页码：

收录情况： SCI

摘要： Duck Tembusu virus (DTMUV) is a single-stranded positive-sense RNA virus that causes disease to emerge in duck flocks and results in huge economic losses to the duck industry. However, no vaccines and control measures are available in China to date. Development of reliable and fast detection methods is necessary to prevent and control this disease. Therefore, a one-step SYBR Green real-time reverse transcription polymerase chain reaction (RT-PCR) method is established here for DTMUV detection. The results show that the method can specifically detect DTMUV without cross-reactions with selected avian pathogens. The sensitivity of the assay was 1000 times greater than that of a conventional RT-PCR and able to test as few as 20 copies from RNA standard samples. The coefficients of variations of inter-and intra-assay values ranged from 0.09% to 0.36% and 0.1% to 0.23%, respectively. Testing 168 field samples and 96 experimentally infected samples by conventional RT-PCR and the one-step SYBR Green real-time RT-PCR, the positive rates were 35.1% and 73.8% from field samples and 30.2% and 64.6% from infected samples. The one-step SYBR Green real-time RT-PCR developed in this study was shown to be a sensitive, specific, high-throughput, cost-effective, and simple diagnostic tool for the rapid detection and epidemiological surveillance of the emerging DTMUV infection.

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