Notes on Genus: Foveavirus

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 kDaCoat 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 kDaCoat protein