First detection of two potyviruses, uraria mosaic virus and passiflora mosaic virus Y, from passionfruit in Japan

Two potyviruses, uraria mosaic virus (UMV) and passiflora foetida virus Y (PfVY), have been detected in Japan for the first time, from newly bred passionfruit cultivars. Host range analyses and phylogenetic analyses based on full and partial polyprotein coding regions of UMV and PfVY, respectively, suggested they were distinct from viruses previously isolated from passionfruit. Both species belong to the BCMV subgroup within the genus Potyvirus, which contains other pathogenic passionfruit viruses.