Abstract
Enzootic nasal tumor virus 2 (ENTV-2), the aetiological agent of enzootic nasal adenocarcinoma in goats, is prevalent in China; resulting in substantial economic losses to the goat-breeding industry. Therefore, it is necessary to establish an efficient detection method for the diagnosis and prevention of ENTV-2 infection. More recently, EvaGreen is emerging as a novel alternative fluorescent dye for quantitative real-time PCR because of its low cost, specific amplification and high resolution. In this study, we developed a specific, sensitive, and cost-effective detection method-an EvaGreen-based real-time PCR assay for the detection of ENTV-2. This assay exhibited high specificity and sensitivity and was able to detect ENTV-2 at concentrations as low as 3.0 × 101 copies, which was more sensitive than the conventional PCR method (detection limit, 3.0 × 102 copies). In addition, the reproducibility test indicated that EvaGreen dye in our assay had a good reproducibility. In conclusion, we report that a highly sensitive, specific, and cost-effective EvaGreen-based real-time PCR assay is successful for the rapid detection of ENTV-2.
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