Journal
3 BIOTECH
Volume 11, Issue 11, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-021-03021-1
Keywords
Duck circovirus; TaqMan; Real-time PCR; Rep
Categories
Funding
- Ningbo Health Branding Subject Fund [ppxk2018-10]
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A TaqMan-based real-time PCR assay was established to detect Duck circovirus, showing high sensitivity, specificity, and repeatability, making it suitable for clinical use.
Duck circovirus (DuCV) is widespread across the world and causes feather disorders in young ducks. It was identified as the causative pathogen of duck beak atrophy and dwarfism syndrome and primary sclerosing cholangitis. In this study, we aimed to establish a TaqMan-based real-time PCR assay to detect DuCV. The primers and probe were designed based on the conserved region of the DuCV Rep gene. After optimizing the reaction conditions, the minimum virus detection limit of the designed PCR technique was 39.4 copies/mu L, 100 times that of conventional PCR (cPCR). No cross-reaction with six other common duck viruses was observed. The intra- and inter-assay variations were less than 1%. The detection rate of DuCV-positive clinical samples using TaqMan-based real-time PCR was higher than that using SYBR Green-based real-time PCR and cPCR. Collectively, these results showed that the established TaqMan-based real-time PCR detected DuCV with high sensitivity and specificity, and significant repeatability, making it suitable for clinical use. Hence, it may be used as a novel tool for the diagnosis and epidemiological investigation of DuCV.
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