start-ver=1.4 cd-journal=joma no-vol=155 cd-vols= no-issue=2 article-no= start-page=159 end-page=167 dt-received= dt-revised= dt-accepted= dt-pub-year=2009 dt-pub=20091121 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Molecular characterization of the VP1, VP2, VP4, VP6, NSP1 and NSP2 genes of bovine group B rotaviruses: identification of a novel VP4 genotype en-subtitle= kn-subtitle= en-abstract= kn-abstract=Studies on bovine group B rotaviruses (GBRs) are limited. To date, only the VP6 gene of a single bovine GBR strain and the VP7 and NSP5 genes of a few bovine GBR strains have been sequenced and analyzed. In the present study, using a single-primer amplification method, we have determined the full-length nucleotide sequences of the VP1, VP2, VP4, VP6, NSP1 and NSP2 genes of three bovine GBR strains from eastern India. In all six of these genes, the bovine GBR strains shared high genetic relatedness among themselves but exhibited high genetic diversity with cognate genes of human, murine and ovine GBRs. Interestingly, as with group A rotaviruses, the bovine GBR VP1, VP2, VP6 and NSP2 genes appeared to be more conserved than the VP4 and NSP1 genes among strains of different species. The present study provides important insights into the genetic makeup and diversity of bovine GBRs, and also identifies a novel GBR VP4 genotype. en-copyright= kn-copyright= en-aut-name=GhoshS en-aut-sei=Ghosh en-aut-mei=S kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KobayashiN en-aut-sei=Kobayashi en-aut-mei=N kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=NagashimaS en-aut-sei=Nagashima en-aut-mei=S kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=Chawla-SarkarM en-aut-sei=Chawla-Sarkar en-aut-mei=M kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=KrishnanT en-aut-sei=Krishnan en-aut-mei=T kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=GaneshB en-aut-sei=Ganesh en-aut-mei=B kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=NaikTN en-aut-sei=Naik en-aut-mei=TN kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=Department of Hygiene, Sapporo Medical University School of Medicine, S 1,W 17, Chuo-Ku, Sapporo affil-num=2 en-affil= kn-affil=Department of Hygiene, Sapporo Medical University School of Medicine, S 1,W 17, Chuo-Ku, Sapporo affil-num=3 en-affil= kn-affil=Division of Virology, Department of Infection and Immunity, Jichi Medical University School of Medicine affil-num=4 en-affil= kn-affil=Division of Virology, National Institute of Cholera and Enteric Diseases affil-num=5 en-affil= kn-affil=Division of Virology, National Institute of Cholera and Enteric Diseases affil-num=6 en-affil= kn-affil=Division of Virology, National Institute of Cholera and Enteric Diseases affil-num=7 en-affil= kn-affil=School of Biology, National Institute of Science Education and Research END