Development of a droplet digital PCR assay for detection of group A porcine rotavirus

被引：4
作者：
Liu, Yangkun [1 ]
Han, Xueying [2 ]
Zhang, Xinru [1 ]
Liu, Jiaxing [1 ]
Yao, Lunguang [1 ]
机构：
[1] Nanyang Normal Univ, Henan Prov Engn & Technol Ctr Hlth Prod Livestock, Sch Life Sci & Agr Engn, Nanyang, Peoples R China
[2] Northwest A&F Univ, Coll Vet Med, Yangling, Shaanxi, Peoples R China
来源：
FRONTIERS IN VETERINARY SCIENCE | 2023年 / 10卷
基金：
中国国家自然科学基金;
关键词：
porcine rotavirus; droplet digital PCR; real-time quantitative PCR; VP6; gene; detection; PIG GROUP-A; MOLECULAR CHARACTERIZATION; INTERSPECIES TRANSMISSION; RAPID DETECTION; RT-QPCR;
D O I：
10.3389/fvets.2023.1113537
中图分类号：
S85 [动物医学（兽医学）];
学科分类号：
0906 ;
摘要：
Group A porcine rotavirus (PoRVA) is an important pathogen of acute enteritis in piglets, which has caused severe economic losses in the pig industry worldwide. A convenient, sensitive and specific diagnosis method is an urgent requirement for the surveillance of the PoRVA circulating in clinical samples. In this study, a novel and convenient droplet digital PCR (ddPCR) for the detection of PoRVA was developed using the conserved region of the VP6 gene. The detection limit of ddPCR was 1.81 +/- 0.14 copies/rection, similar to 10 times greater sensitivity than TaqMan real-time quantitative PCR (qPCR). Both ddPCR and qPCR assays exhibited good linearity and repeatability, and the established ddPCR method was highly specific for PoRVA. The results of clinical sample testing showed that the positivity rate of ddPCR (5.6%) was higher than that of qPCR (4.4%). Therefore, the newly developed ddPCR assay could be widely used in clinical diagnosis of PoRVA infections.
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页数：8
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