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Bluetongue disese is one of the major domestic and wild ruminant viral diseases and has caused significant economic loss to cattle and sheep producers.In this study,a Loop-mediated isothermal amplification (LAMP) assay was developed for rapid,sensitive and specific detection of Bluetongue virus.Four primers (two inner primers,two outer primers) were designed specifically to recognize the NS1 gene of Bluetongue virus.After optimization,target gene was amplified and detected within 30 min under 62℃ isothermal conditions.