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Genetic Characterization of Toggenburg Orbivirus, a New Bluetongue Virus, from Goats, Switzerland
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Dec 2008
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Source: Emerg Infect Dis. 14(12):1855-1861
[PDF-322.77 KB]
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Alternative Title:Emerg Infect Dis
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Description:A novel bluetongue virus (BTV) termed Toggenburg orbivirus (TOV) was detected in goats from Switzerland by using real-time reverse transcription-PCR. cDNA corresponding to the complete sequence of 7 of 10 double-stranded RNA segments of the viral genome was amplified by PCR and cloned into a plasmid vector. Five clones for each genome segment were sequenced to determine a consensus sequence. BLAST analysis and dendrogram construction showed that TOV is closely related to BTV, although some genome segments are distinct from the 24 known BTV serotypes. Maximal sequence identity to any BTV ranged from 63% (segment 2) to 79% (segments 7 and 10). Because the gene encoding outer capsid protein 2 (VP2), which determines the serotype of BTV, is placed within the BTV serogroup, we propose that TOV represents an unknown 25th serotype of BTV.
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Pubmed ID:19046507
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Pubmed Central ID:PMC2634640
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Volume:14
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Issue:12
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