Realm (virology)


In virology, a realm is the highest taxonomic rank established by the International Committee on Taxonomy of Viruses. A realm is divided into subrealms. The names of virus realms are terminated with the suffix -viria. For viroids the suffix is designated as -viroidia and for satellite nucleic acids as -satellitia, but as of 2019 neither viroid nor satellite realms have been designated.

Realms

As of 2019, four realms are described: Duplodnaviria, Monodnaviria, Riboviria, and Varidnaviria.

Subrealm

In virology, a subrealm is the second highest taxonomic rank established by the International Committee on Taxonomy of Viruses, after the realm. The names of subrealms for viruses are terminated with the suffix -vira. For viroid subrealms, the ending is -viroida and for satellites, -satellita. A subrealm is divided into kingdoms.
There are currently no taxa described at this rank.