alphatetraviridae alphatetraviridae alphatetraviridae is a family of viruses. moths and butterflies serve as natural hosts. there are two genera in the family. infection outcome varies from unapparent to lethal. alphatetraviridae virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: kitrinoviricota class: alsuviricetes order: hepelivirales family: alphatetraviridae genera betatetravirus omegatetravirus taxonomy the following genera are assigned to the family: betatetravirus omegatetravirus structure viruses in alphatetraviridae are non-enveloped, with icosahedral geometries, and t=4 symmetry. the diameter is around 40 nm. genomes are linear and non-segmented, bipartite, around 6.5kb in length. genusstructuresymmetrycapsidgenomic arrangementgenomic segmentation betatetravirusicosahedralt=4non-envelopedlinearmonopartite omegatetravirusicosahedralt=4non-envelopedlinearsegmented 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 leaky scanning, and ribosomal skipping. moths and butterflies serve as the natural host. transmission routes are oral. genushost detailstissue tropismentry detailsrelease detailsreplication siteassembly sitetransmission betatetravirusmoths; butterfliesmidgutcell receptor endocytosisbuddingcytoplasmcytoplasmoral omegatetravirusmoths; butterfliesmidgutcell receptor endocytosisbuddingcytoplasmcytoplasmoral