Genus: Roymovirus
Family: Potyviridae
Genus: Roymovirus
Genus: Tritimovirus
Family: Potyviridae
Genus: Tritimovirus
Genus: Rymovirus
Family: Potyviridae
Genus: Rymovirus
Genus: Potyvirus
Family: Potyviridae
Genus: Potyvirus
Distinguishing features
The largest genus in the family contains viruses transmitted by aphids in a non-persistent manner.
Virion
Morphology
Virions are flexuous filaments, 680–900 nm long and 11–13 nm wide, with helical symmetry and a pitch of about 3.4 nm. Particles of some viruses are longer in the presence of divalent cations than in the presence of EDTA.
Genus: Poacevirus
Family: Potyviridae
Genus: Poacevirus
Distinguishing features
Triticum mosaic virus (TriMV) is transmitted by the wheat curl mite (Aceria tosichella) and has an unusually long 5´-untranslated region. Vectors are unknown for the other members of the genus.
Virion
Morphology
Virions of sugarcane streak mosaic virus (SCSMV) are flexuous filaments 890 nm×15 nm in size.
Genus: Macluravirus
Family: Potyviridae
Genus: Macluravirus
Genus: Ipomovirus
Family: Potyviridae
Genus: Ipomovirus
Distinguishing features
Ipomoviruses are distinguished from members of other genera by their mode of transmission being by whiteflies, and by their separate branching on phylogenetic analyses.
Virion
Morphology
Virions are flexuous filaments 800–950 nm long.
Genus: Bymovirus
Family: Potyviridae
Genus: Bymovirus
Distinguishing features
Compared with other viruses in the family, members of the genus Bymovirus are distinct in having a divided (bipartite) genome and in being transmitted by the root-infecting parasite, Polymyxa graminis (Plasmodiophorales), a fungoid protist.
Genus: Brambyvirus
Family: Potyviridae
Genus: Brambyvirus
Distinguishing features
The genus includes a single species, members of which are distinguished from all other members of the family in that they encode a very large P1 protein (83.6 kDa) containing an AlkB domain, and are also phylogenetically distinct (Susaimuthu et al., 2008).
References: Potyviridae
References: Potyviridae
Adams, M. J., J. F. Antoniw and F. Beaudoin (2005a). Overview and analysis of the polyprotein cleavage sites in the family Potyviridae. Mol Plant Pathol 6: 471-87. [PubMed]