''Mandarivirus'' is a subgenus of

viruses A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are found in almo ...

in the order ''

Tymovirales ''Tymovirales'' is an order of viruses with five families. The group consists of viruses which have positive-sense, single-stranded RNA genomes. Their genetic material is protected by a special coat protein. Description Tymoviruses are mainly ...

'', family ''

Alphaflexiviridae ''Alphaflexiviridae'' is a family of viruses in the order ''Tymovirales''. Plants and fungi serve as natural hosts. There are 65 species in this family, assigned to six genera. Diseases associated with this family include: mosaic and ringspot sy ...

'', genus ''

Potexvirus ''Potexvirus'' is a genus of pathogenic viruses in the order ''Tymovirales'', in the family ''Alphaflexiviridae''. Plants serve as natural hosts. There are 52 species in this genus, three of which are assigned to a subgenus. Diseases associated ...

''. There are three species in this subgenus. Diseases associated with this subgenus commonly include yellow ringspot and rapid decline of the tree.

Taxonomy

The following species are assigned to the subgenus, listed by scientific name and followed by their common names: * ''Potexvirus citriflavimaculae'', Citrus yellow mottle-associated virus * ''Potexvirus citriflavivenae'', Citrus yellow vein clearing virus * '' Potexvirus citrindicum'', Indian citrus ringspot virus

Structure

Viruses in ''Mandarivirus'' are non-enveloped, with flexuous and filamentous geometries. The diameter is around 13 nm. Genomes are linear, around 7.5kb in length. The genome codes for 6 proteins.

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. The virus exits the host cell by tripartite non-tubule guided viral movement. Citrus trees serve as the natural host with grafting being a common transmission route.

References

External links

Viralzone: Mandarivirus

ICTV
{{Taxonbar, from=Q18814791 Alphaflexiviridae Viral citrus diseases Virus subgenera