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.