In surveys conducted by AVRDC, potyviruses were frequently isolated from soybean in Taiwan. Preliminary studies and serological tests indicated that these isolates were not SMV, the only potyvirus so far reported from soybean in this country. The artificial host range, which was almost identical for these isolates, was largely confined to the leguminous family, including economically important crops such as French bean (Phaseolus vulgaris), cowpea (Vigna unguiculata ssp. unguiculata), yardlong bean (Vigna unguiculata ssp. sesquipedalis) and azuki bean (Vigna angularis).
Myzus persicae transmitted the virus in a non persistent manner. Seed transmission was found to occur in soybean and cowpea. Serological tests indicated a close relationship with azuki bean mosaic virus (AzMV), peanut mosaic virus (PMV-TARI), blackeve cowpea mosaic virus (BlCMV) and certain strains of bean common mosaic virus (BCMV).
Resistance has been found in AVRDC soybean germ plasm accessions and breeding lines.