Notes on Genus: Foveavirus
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flexuous filaments
Type member: Apple stem pitting virus
Contents
- Members of this Genus
- General Description
- Morphology
- Electron Micrograph
- Genome
- Genus Genomic Organization
- Genome Map
- Type Member Genomic Organization
- All Known Sequences
- Curated Sequences
General Description
The genus Foveavirus is one of is one of the genera in the family Betaflexiviridae. In genome organisation it particularly resembles the genus Carlavirus and members of the family Alphaflexiviridae and is distinguished from them by having 5 ORFs and a large replication protein. There are no known vectors. The name is from the Latin fovea (= a small pit) describing the symptoms of the type member.Morphology
Virions filamentous, not enveloped, c. 800 nm long and 12-13 nm wide.Genome
Monopartite, linear, single stranded, positive sense RNA of length c. 8300-9300 nucleotides. The 3' terminus has a poly(A) tract.Genus Genomic Organization
Genes are translated by means of subgenomic RNAs, with a total of 5 open reading frames:| 1 | 230-250 kDa | Polymerase |
| 2 | 25 kDa | ORFs 2-4 (Triple gene block): translated from different reading frames and all involved in cell-to-cell movement |
| 3 | 13 kDa | |
| 4 | 7-8 kDa | |
| 5 | 28-44 kDa | Coat protein |
Type Member Genomic Organization
Genes are translated by means of subgenomic RNAs, with a total of 5 open reading frames:| 1 | 247 kDa | Polymerase |
| 2 | 25 kDa | ORFs 2-4 (Triple gene block): translated from different reading frames and all involved in cell-to-cell movement |
| 3 | 13 kDa | |
| 4 | 7 kDa | |
| 5 | 44 kDa | Coat protein |