Family: Botourmiaviridae

María A. Ayllón, Massimo Turina, Jiatao Xie, Luca Nerva, Shin-Yi Lee Marzano, Livia Donaire and Daohong Jiang

Citation: Closteroviridae

A summary of this ICTV Report chapter has been published as an ICTV Virus Taxonomy Profile article in the Journal of General Virology, and should be cited when referencing this online chapter as follows:

References: Closteroviridae

Agranovsky, A. A. (2016). Closteroviruses: Molecular biology, evolution and interactions with cells. In Plant viruses: Evolution and management. Edited by R. K. Gaur, N. M. Petrov, B. Patil and M. I. Stoyanova.   Singapore,  Springer.  231-252. 

Further reading: Closteroviridae

Jarugula, S., S. Gowda, W. O. Dawson and R. A. Naidu (2018). Development of infectious cDNA clones of Grapevine leafroll-associated virus 3 and analyses of the 5' non-translated region for replication and virion formation. Virology 523: 89-99. [PubMed]

Resources: Closteroviridae

The full-length genome sequence of members of 56 species in the family Closteroviridae is available at https://www.ncbi.nlm.nih.gov/genomes/GenomesGroup.cgi?taxid=69973

Sequence alignments and tree files:

Figure 4. Closteroviridae:

Tree file (newick format)

Authors: Closteroviridae

Moshe Bar-Joseph
The S. Tolkowsky Laboratory
The Volcani Center
Bet Dagan 50250
Israel
E-mail: [email protected]

Thierry Candresse
MR 1332 Biologie du Fruit et Pathologie
INRA
University of Bordeaux
CS20032 Villenave d’Ornon
33882 Bordeaux
France
E-mail: [email protected]

Family: Closteroviridae

Genus: Velarivirus

Distinguishing features

The genus comprises species whose members have virion particles of 1,500 to 1,700 nm in length, a positive-sense, single-stranded RNA genome of 16–16.9 kb, and no known insect vector. 

Virion

Morphology

See discussion under family description. 

Family: Closteroviridae

Genus: Crinivirus

Distinguishing features

The genus comprises species whose members are transmitted by whiteflies. Virions are 650–900 nm long and have a bipartite genome, but potato yellow vein virus (PYVV) has a tripartite genome. 

Virion

Morphology

See discussion under family description. 

Family: Closteroviridae

Genus: Ampelovirus

Distinguishing features

The genus comprises species whose members have virions that are 1,400–2,000 nm long, a monopartite genome of 13.0–18.5 kb, and are transmitted by pseudococcid mealybugs and soft scale insects.  

Virion

Morphology

See discussion under family description. 

Family: Closteroviridae

Genus: Closterovirus

Distinguishing features

Members of the genus have particle lengths > 1,200 nm and a single-stranded monopartite RNA genome of 14.5–19.3 kb, in which the minor coat protein (CPm) gene is located upstream of the coat protein (CP) gene. Transmission is by aphids.