Nanovirus
From Wikipedia, the free encyclopedia
| Nanovirus | |
|---|---|
 | |
| Faba bean necrotic yellows virus (FBNYV) | |
Virus classification  | |
| (unranked): | Virus |
| Realm: | Monodnaviria |
| Kingdom: | Shotokuvirae |
| Phylum: | Cressdnaviricota |
| Class: | Arfiviricetes |
| Order: | Mulpavirales |
| Family: | Nanoviridae |
| Genus: | Nanovirus |
Nanovirus is a genus of viruses, in the family Nanoviridae.[1] Legume plants serve as natural hosts. There are 12 species in this genus. Diseases associated with this genus include: stunting, severe necrosis and early plant death.[1][2][3]
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:[3][4]
- Nanovirus astragali, Milk vetch dwarf virus
- Nanovirus astragalirani, Milk vetch chlorotic dwarf virus
- Nanovirus flavipisi, Pea yellow stunt virus
- Nanovirus flaviviciae, Faba bean yellow leaf virus
- Nanovirus medicagonis, Black medic leaf roll virus
- Nanovirus necroflaviviciae, Faba bean necrotic yellows virus
- Nanovirus necropisi, Pea necrotic yellow dwarf virus
- Nanovirus necropumiliviciae, Faba bean necrotic stunt virus
- Nanovirus petroselini, Parsley severe stunt associated virus
- Nanovirus sophorae, Sophora yellow stunt virus
- Nanovirus trifolii, Subterranean clover stunt virus
- Nanovirus viciacraccae, Cow vetch latent virus
Structure and genome
Virions in the genus Nanovirus are non-enveloped, with icosahedral and round geometries, and T=1 symmetry. The diameter is around 18-19 nm.
The genome is multipartite, and the genome components (6 or 8, depending on the genus) are circular, around 1kb in length, essentially carry only one gene, and are individually encapsidated forming small icosahedral virions (18–20 nm).[2][5]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Nanovirus | Icosahedral | T=1 | Non-enveloped | Circular | Segmented |