banana streak my virus banana streak my virus banana streak my virus (bsmyv) is a plant virus that causes banana streak disease of banana (musa) species, which results in chlorotic streaks in the leaves and a reduced crop. the virus has been recovered from australia, india and tonga. it is composed of a double-stranded dna genome and may exist in either an infectious episomal form or an endogenous form which is integrated into the host dna. it is spread by several species of mealy bug. banana streak my virus virus classification (unranked): virus realm: riboviria kingdom: pararnavirae phylum: artverviricota class: revtraviricetes order: ortervirales family: caulimoviridae genus: badnavirus species: banana streak my virus