Betatetravirus

The following species are assigned to the genus, scientific name in parentheses: • Antheraea eucalypti virus (Betatetravirus antheraeae) • Darna trima virus (Betatetravirus darnae) • Dasychira pudibunda virus (Betatetravirus dasychirae) • Nudaurelia capensis beta virus (Betatetravirus nudaureliae) • Philosamia cynthia x ricini virus (Betatetravirus philosamiae) • Pseudoplusia includens virus (Betatetravirus pseudoplusiae) • Trichoplusia ni virus (Betatetravirus trichoplusiae) ==Structure==

Viruses in Betatetravirus are non-enveloped, with icosahedral geometries, and T=4 symmetry. The diameter is around 40 nm. Genomes are linear, around 6.5kb in length. ==Life cycle==

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Translation takes place by ribosomal skipping. Moths and butterflies serve as the natural host. Transmission routes are oral. ==References==