We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Development of real-time PCR assay for detection of porcine circovirus-like virus P1 in domestic pigs in China.
- Authors
Kong-wang He; Li-bin Wen; Yong-shan Wang; Cheng-ping Lu
- Abstract
Background: The porcine circovirus-like agent P1 is a newly discovered DNA virus with a single-stranded circular genome that is highly homologous to that of porcine circovirus type 2. P1 infection can cause symptoms resembling postweaning multisystemic wasting syndrome. This study aims to develop a rapid, sensitive and specific method to detect P1. Results: A pair of primers was designed and used to amplify a 119 bp DNA fragment to generate a recombinant plasmid which was served as the standard. A SYBR I qPCR protocol was established using the P1 recombinant plasmid standard and the sensitivity, specificity and stability of this method was analyzed. The results demonstrate a strong correlation with P1 recombinant plasmid titers when virus DNA copy numbers fall in between 100 ~ 109 copies/μL. This method doesn't detect pseudo rabies, porcine parvovirus or porcine reproductive and respiratory syndrome virus; moreover it can distinguish porcine circovirus type 2 from P1 by melting temperature analysis. Coefficient of variation for each batch of reaction is less than 5 %. The serum virus titers of P1 positive in this study were measured by this protocol to be 103 to 107 copies/mL. Conclusions: The established qPCR is sensitive, specific, and reliable, which could be a useful tool when applied to quantification of P1 in a variety of samples from infected pigs.
- Subjects
DIAGNOSTIC use of polymerase chain reaction; CIRCOVIRUS diseases; VIRUS diseases in swine; RECOMBINANT DNA; GENOME editing; DIAGNOSIS
- Publication
BMC Veterinary Research, 2015, Vol 11, Issue 1, p1
- ISSN
1746-6148
- Publication type
Article
- DOI
10.1186/s12917-015-0509-3