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Genomic and phylogenetic analysis of two novel bovine papillomaviruses, BPV-9 and BPV-10

¹ Hokkaido Research Station, National Institute of Animal Health, 4 Hitsujigaoka, Toyohira, Sapporo 062-0045, Japan
² Tokachi Livestock Hygiene Service Center, 59-6 Kisen, Kawanishi, Obihiro 089-1182, Japan

Correspondence
Shinichi Hatama
hatama{at}affrc.go.jp

Eight bovine papillomavirus (BPV) types, BPV-1–8, have been classified, based on genome nucleotide sequence similarities, in the genera Deltapapillomavirus (BPV-1 and -2), Epsilonpapillomavirus (BPV-5 and -8), Xipapillomavirus (BPV-3, -4 and -6) and an unassigned genus (BPV-7). We report here the complete genome sequence of two new BPV types isolated from separate epithelial squamous papilloma lesions on cattle teats. The genomes are 7303 and 7399 bp in length, respectively, and both have genetic organization and consensus motifs typical of papillomaviruses. A neighbour-joining phylogenetic tree revealed that both viruses cluster with BPV-3, -4 and -6. Nucleotide sequence identities of the BPV L1 major capsid protein of these two new BPVs with BPV-3, their closest relative, are 74.2 and 71.2 %, respectively. These results suggest that both viruses are new BPV types in the genus Xipapillomavirus, and they are designated BPV-9 and BPV-10.

The GenBank/EMBL/DDBJ accession numbers of the sequences reported in this paper are AB331650 (BPV-9) and AB331651 (BPV-10).

Supplementary material is available with the online version of this paper.

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