Fusariviridae (taxid:1661063)

VIRION

Capsidless virus: These viruses don't produce virions, and cannot be assigned to the Baltimore classification in the strict sense. The polymerase shows homologies to dsRNA Durnavirales, but experimental data suggest that they can be considered ssRNA viruses "with dsRNA lifestyle".

GENOME

Linear RNA genome of 6-10kb, encodes two to four ORFs . The 3'end is polyadenylated.

GENE EXPRESSION

ORFB (and if present, ORFA) encodes a polyprotein that is proteolytically processed.

ENZYMES

• RNA-directed RNA polymerase [RdRp]

REPLICATION

CYTOPLASMIC

Poorly understood. The virus never buds out of its host and probably replicates in lipid pleomorphic vesicles like positive ssRNA virus replication viral manner. Transmission depends on cell-to-cell cytoplasmic exchange and hyphal anastomosis.