Notes on Genus: Double-stranded satellite RNAs
no particles of their own
Double stranded satellite RNAs have been found associated with several mycoviruses.
There are no distinctive virions, because the satellite RNA is encapsidated by the helper virus.
Linear, dsRNA of 0.5-1.8kb.
Genus Genomic Organization
The RNA does not encode a structural protein. Some members encode a fungal toxin that has a large effect on the virulence of the helper virus.
Type Member Genomic Organization
The RNA has a single open reading frame encoding the 11kDa KP4 toxin.