[citation needed] Member viruses encode large polypeptides that are cleaved into mature proteins.

Pretty interesting sweet potato potyviral ORF (PISPO), alkylation B (AlkB), and inosine triphosphate pyrophosphatase (known as ITPase or HAM1) are protein domains identified in atypical members.

These viruses shared a common ancestry 6,600 years ago[10] and are transmitted by over 200 species of aphids.

[citation needed] The species in the genus Macluravirus are 650–675 nm in length and are also transmitted by aphids.

The plant viruses in the genus Ipomovirus are transmitted by whiteflies and they are 750–950 nm long.

[11]) The Bymovirus genome consists of two particles instead of one (275 and 550 nm) and these viruses are transmitted by the chytrid fungus, Polymyxa graminis.