''Betaretrovirus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

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

es in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Retroviridae A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. After invading a host cell's cytoplasm, the virus uses its own reverse transcriptase ...

''. Example of viruses in the genus include:

Mouse mammary tumor virus Mouse mammary tumor virus (MMTV) is a milk-transmitted retrovirus like the HTL viruses, HI viruses, and BLV. It belongs to the genus ''Betaretrovirus''. MMTV was formerly known as Bittner virus, and previously the "milk factor", referring to t ...

, enzootic nasal tumor virus (ENTV-1, ENTV-2), and simian retrovirus types 1, 2 and 3 (SRV-1, SRV-2, SRV-3).

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species: * ''Betaretrovirus lan'', Langur virus * ''Betaretrovirus maspfimon'', Mason-Pfizer monkey virus * ''Betaretrovirus murmamtum'',

* ''Betaretrovirus ovijaa'', Jaagsiekte sheep retrovirus * ''Betaretrovirus squmon'', Squirrel monkey retrovirus

References

External links

Viralzone: Betaretrovirus
Betaretroviruses Virus genera {{Virus-stub