title: Phylogenetic analysis of the S7 gene does not segregate Chinese strains of bluetongue virus into a single topotype.
abstract: Bluetongue virus (BTV) infection of ruminants is endemic throughout tropical and subtropical regions of the world. The S7 gene segments of prototype Chinese strains of BTV serotypes 1, 2, 3, 4, 12, 15, and 16 were sequenced and compared to the same genes of prototype strains of BTV from the US, Australia, and South Africa. The S7 genes and predicted VP7 proteins of the Chinese viruses were relatively conserved, with the notable exception of serotype 15. Furthermore, phylogenetic analysis of the S7 genes did not predict geographic origin of the various strains of BTV.
authors.affiliation: Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis 95616, USA.
authors.forename: K R
authors.initials: KR
authors.lastname: Bonneau
authors.forename: N Z
authors.initials: NZ
authors.lastname: Zhang
authors.forename: W C
authors.initials: WC
authors.lastname: Wilson
authors.forename: J B
authors.initials: JB
authors.lastname: Zhu
authors.forename: F Q
authors.initials: FQ
authors.lastname: Zhang
authors.forename: Z H
authors.initials: ZH
authors.lastname: Li
authors.forename: K L
authors.initials: KL
authors.lastname: Zhang
authors.forename: L
authors.initials: L
authors.lastname: Xiao
authors.forename: W B
authors.initials: WB
authors.lastname: Xiang
authors.forename: N J
authors.initials: NJ
authors.lastname: MacLchlan
mesh_terms: D000818:Animals; D001315:Australia; D001819:Bluetongue / Q000821:virology*; D001820:Bluetongue virus / Q000145:classification* / Q000235:genetics / Q000378:metabolism; D002417:Cattle; D002681:China; D008969:Molecular Sequence Data; D010802:Phylogeny; D012756:Sheep; D013019:South Africa; D014481:United States; D014758:Viral Core Proteins / Q000235:genetics*
chemical_list: D014758:Viral Core Proteins; C066862:VP7 protein, orbivirus