Tepovirus


Tepovirus is a genus of viruses in the order Tymovirales, in the family Betaflexiviridae. Plants as well as some other root and tuber crops in the andes serve as natural hosts. There are five species in this genus.

Taxonomy

The following species are assigned to the genus, listed by scientific name and followed by the exemplar virus of the species:Tepovirus tafagavis, Agave virus TTepovirus tafavii, Cherry virus TTepovirus tafpruni, Prunus virus 1Tepovirus tafsolani, Potato virus TTepovirus tafzosterae, Zostera virus T

Structure

Viruses in Tepovirus are non-enveloped, with flexuous and filamentous geometries. The diameter is around 12 nm. Genomes are linear, around 6.5kb in length. The genome codes for 3 proteins.
GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
TepovirusFilamentousNon-envelopedLinearMonopartite

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. Plants as well as some other root and tuber crops in the Andes serve as the natural host. Transmission routes are seed borne and pollen associated.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
TepovirusPome fruits; citrus; pear-Viral movement; mechanical inoculationViral movementCytoplasmCytoplasmGrafting; propagating material