None reported. No true capsid. The dsRNA genome is encapsulated along with the viral replicase enzyme.
Linear dsRNA genome of about 12 kb.
The genome encodes for one ORF potentially cleaved in several polypeptides.
- Virus genome is transmitted horizontally through mating or vertically from mother to daughter cells.
- Transcription-translation of genomic RNA produces viral RdRp and possibly other proteins.
- Replication occurs in cytoplasmic vesicles. Genomic (+)RNA is copied into its complementary anti-genomic RNA thereby forming new dsRNA genomes.