Abstract
Bluetongue virus serotype 21 (BTV-21) was originally isolated from Australia, but has now been reported from India, Indonesia, China and Japan. We report the isolation, and sequencing of BTV-21 from India. The complete ORF sequence of VP2 gene of this isolate showed that it is closely related to recent BTV-21 isolates from Japan (93–94% identity), and distantly related to BTV-21 reference strain (86% identity). Our results, along with the available sequences of Japanese isolates, suggest that the currently circulating BTV-21 strains from India and Japan are divergent from the original strain(s) from Australia and shed light on designing molecular diagnostics for the detection of BTV.
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We acknowledge funding support from the All India Network Project on Bluetongue, Indian Council of Agricultural Research (to YNR & Minakshi), and the Department of Biotechnology, Government of India (to PPR).
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Susmitha, B., Sudheer, D., Rao, P.P. et al. Evidence of bluetongue virus serotype 21 (BTV-21) divergence. Virus Genes 44, 466–469 (2012). https://doi.org/10.1007/s11262-012-0724-y
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DOI: https://doi.org/10.1007/s11262-012-0724-y