The<unk>  is a genus of a virus with no family. Virions are non-enveloped, elongated and rod-shaped with a length of 100-300 nm and a width of 18-20 nm with helical spirals on both ends.  The genome is a single piece of non-segmented linear, positive-sense, single-stranded RNA.  The name of the genus is derived from its type species, Potato mop-top virus, giving rise to<unk> ..
Species in this genus include:
Beet soil-borne virus
Beet virus Q
Broad bean necrosis virus
Potato mop-top virus
Pomovirus
Echovirus
Enterovirus
Erbovirus
Parechovirus
Arbovirus
Poliovirus
Pithovirus