Potyviruses are responsible for substantial losses to bean crop farmers in many parts of the world.One such virus, the bean common mosaic virus (BCMV), has been isolated from hyacinth bean leaves in the Tai'an region of the Shandong province of China.The complete genomic sequence of this isolate, which we have called BCMV-HB, was obtained and then used to conduct molecular genetic analyses to infer its taxonomic relationship with other members of the Potyviridae.The results indicate that the BCMV-HB isolate is phylogenetically distinct from other strains of the BCMV family.Our data also suggest that the taxonomic status of the BCMV-HB isolate falls somewhere between peanut strip virus and other BCMV strains.In addition, recombination was identified in the nuclear inclusion'b'protein region of the BCMV-HB genome.The results of this study indicate that BCMV-HB, which infects hyacinth bean plants, is a new strain of BCMV.