Development of a PCR assay for detection and differentiation of Muscovy duck and goose parvoviruses based on NS gene characterization

文献类型： 外文期刊

第一作者： Wan, Chunhe

作者： Wan, Chunhe;Shi, Shaohua;Chen, Cuiteng;Chen, Hongmei;Cheng, Longfei;Fu, Qiuling;Fu, Guanghua;Liu, Rongchang;Huang, Yu

作者机构：

关键词： differentiation; goose parvovirus; Muscovy duck parvovirus; NS gene; PCR

期刊名称：JOURNAL OF VETERINARY MEDICAL SCIENCE （ 影响因子：1.267； 五年影响因子：1.348 ）

ISSN： 0916-7250

年卷期： 2018 年 80 卷 12 期

页码：

收录情况： SCI

摘要： Muscovy duck parvovirus (MDPV) and goose parvovirus (GPV) have both been found to cause high mortality and morbidity in Muscovy ducklings. Specific detection is often rife with false positives due to high identity at the genomic nucleotide level and antigenic similarity between MDPVs and GPVs. In this study, significantly variable regions were found, via non-structural (NS) comparison, between MDPV and GPV NS genes; however, NS genes were conserved within the MDPV and GPV groups. A polymerase chain reaction (PCR) assay for detecting and differentiating MDPVs and GPVs was developed with more specificity based on the NS gene characterization. The assay detected as low as 103 DNA copies of both the MDPV and GPV strains, along with 549 separate base pairs (bp). No bands of the same size from other duck pathogens, including duck circovirus, duck enteritis virus, egg drop syndrome virus, duck-origin goose hemorrhagic polyomavirus, Escherichia coli, Salmonella, Riemerella anatipestifer and Pasteurella multocida were amplified. This indicates that this method for performing PCR provides a useful and reliable alternative tool for more precise differentiation of MDPV and GPV infection in clinical samples.

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