Table 1. Summary of the families and genera of plant viruses with distinct virion structure, genome nature, and organization.
Genome 1 | Family | Genus | Particle 2 | Segments 3 | Mono. 4 | Seg. 4 | Multi. 4 | |
---|---|---|---|---|---|---|---|---|
DNA | ssDNA | Geminiviridae | Begomovirus 5 | twinned icosahedra | 1 to 2 | ✔ | ✔ | |
all other genera | 1 | ✔ | ||||||
Nanoviridae | Babuvirus | icosahedra | 6 | ✔ | ||||
Nanovirus | 8 | ✔ | ||||||
dsDNA | Caulimoviridae | Caulimovirus & all other genera | icosahedra | 1 | ✔ | |||
Badnavirus & Tungrovirus | bacilliform | 1 | ✔ | |||||
RNA | ssRNA (-) | Bunyaviridae | Tospovirus | enveloped spherical | 3 | ✔ | ||
unassigned | Emaravirus | enveloped spherical | 4 | ✔ | ||||
Ophioviridae | Ophiovirus | flexuous nucleocapsid | 3 to 4 | ✔ | ||||
unassigned | Tenuivirus | flexuous nucleocapsid | 4 to 5 | ✔ | ||||
Rhabdoviridae | Cytorhabdovirus & Nucleorhabdovirus | enveloped, bullet-shaped | 1 | ✔ | ||||
unassigned | Varicosavirus | rod-shaped | 2 | ✔ | ||||
ssRNA (+) | Closteroviridae 5 | Closterovirus | filamentous | 1 | ✔ | |||
Ampelovirus | 1 | ✔ | ||||||
Crinivirus | 2 | ✔ | ||||||
Potyviridae 5 | Potyvirus, Brambyvirus, Poacevirus | filamentous | 1 | ✔ | ||||
Bymovirus | 2 | ✔ | ||||||
Tritimovirus, Rymovirus, Ipomovirus & Macluravirus | 1 or 2 | ✔ | ✔ | |||||
Alphaflexiviridae | all genera | filamentous | 1 | ✔ | ||||
Betaflexiviridae | all genera | filamentous | 1 | ✔ | ||||
Tymoviridae | all genera | icosahedra | 1 | ✔ | ||||
Benyviridae | Benyvirus | rod-shaped | 4 to 5 | ✔ | ||||
Virgaviridae 5 | Furovirus | rod-shaped | 2 | ✔ | ||||
Hordeivirus | 3 or 4 | ✔ | ||||||
Pecluvirus | 2 | ✔ | ||||||
Pomovirus | 3 | ✔ | ||||||
Tobamovirus | 1 | ✔ | ||||||
Tobravirus | 2 | ✔ | ||||||
Secoviridae 5 | Sequivirus | icosahedra | 1 | ✔ | ||||
Waikavirus | 1 | ✔ | ||||||
Comovirinae, Comovirus, Fabavirus, Nepovirus | 2 | ✔ | ||||||
Cheravirus | 2 | ✔ | ||||||
Sadwavirus | 2 | ✔ | ||||||
Torradovirus | 2 | ✔ | ||||||
Bromoviridae | Alfamovirus, Oleavirus | Bacilliform | 3 | ✔ | ||||
Anulavirus, Bromovirus, Cucumovirus, Ilarvirus | icosahedra | 3 | ✔ | |||||
Luteoviridae | all genera | icosahedra | 1 | ✔ | ||||
unassigned | Polemovirus | icosahedra | 1 | ✔ | ||||
unassigned | Sobemovirus | icosahedra | 1 | ✔ | ||||
Tombusviridae 5 | Dianthovirus | icosahedra | 2 | ✔ | ||||
all other genera | 1 | ✔ | ||||||
unassigned | Idaeovirus | icosahedra | 3 | ✔ | ||||
unassigned | Cilevirus | bacilliform | 2 | ✔ | ||||
unassigned | Ourmiavirus | bacilliform | 3 | ✔ | ||||
unassigned | Umbravirus | no capsid, satelite virus | 1 | ✔ | ||||
dsRNA | Endornaviridae | Endornavirus | none reported | 1 | ✔ | |||
Partitiviridae | all genera | Icosahedra | 2 | ✔ | ||||
Reoviridae | Fijivirus & Orizavirus | double layer icosahedra | 10 | ✔ | ||||
Phytoreovirus | 12 | ✔ | ||||||
Metaviridae | Metavirus | Spherical irregular | 1 | ✔ | ||||
Pseudoviridae | Pseudovirus | spheroïd, ovoïd | 1 | ✔ |
1 Nature of the nucleic acid composing the genome.
2 Type and shape of the virus particle.
3 Number of genome segments comprising the viral genome.
4 Mono., Seg., and Multi. correspond to monopartite, segmented, and multipartite viral species, as marked in corresponding boxes.
5 Note that the families Virgaviridae, Potyviridae, Tombusviridae, Secoviridae, and Closteroviridae, as well as the genus Begomovirus, are composed of both monopartite and multipartite species.
This table is adapted from the website "ViralZone" (http://viralzone.expasy.org/) and from King, A. M. (2011). Virus taxonomy: classification and nomenclature of viruses: Ninth Report of the International Committee on Taxonomy of Viruses (Vol. 9). Elsevier, p. 18–19.