ICTV Virus Taxonomy Profile: Polycipiviridae

Fig. 1.. Electron micrograph of a virus-like particle purified from Solenopsis invicta worker ants infected with Solenopsis invicta virus 2 (scale bar, 20 nm). Reproduced from [1]; US government material as public domain content.

Fig. 2.. Genome organization of Solenopsis invicta virus 2 (genus Sopolycivirus). The 5′-proximal ORFs encode jelly-roll capsid protein domains (JR; orange), a protein of unknown function (ORF2) and a small predicted transmembrane protein (2b; specific to genus Sopolycivirus). The 3′ ORF encodes helicase (Hel), protease (Pro) and RNA-dependent RNA polymerase (RdRP) domains. The genome is polyadenylated and believed to have a viral protein genome-linked (VPg) covalently attached at the 5′ end. Members of the genera Hupolycivirus and Chipolycivirus have similar genome organizations, except that they lack the 2b ORF.