Family: Bromoviridae

Genus: Oleavirus

Distinguishing features

A fourth RNA with no apparent messenger activity, and which is slightly smaller than the RNA3, is encapsidated (Martelli and Grieco 1997).

Family: Bromoviridae

Genus: Ilarvirus

Distinguishing features

Family: Bromoviridae

Genus: Cucumovirus

Distinguishing features

Cucumoviruses are transmitted in a non-persistent manner by over 80 species of aphids belonging to more than 30 genera. RNA2 is bicistronic producing a 2b protein associated with suppression of post-transcriptional gene silencing.

Family: Bromoviridae

Genus: Bromovirus

Distinguishing features

Beetle vectors are recorded for most bromoviruses but the efficiency of such transmission is low. A long-standing report of transmission by nematodes has yet to be confirmed.

Virion

Morphology

Virions are polyhedral, and all the same size, with a diameter of 27 nm.

Family: Bromoviridae

Genus: Anulavirus

Distinguishing features 

RNA3 is slightly larger than RNA2, unlike other members of this family. The 2a protein is the smallest reported for viruses in the family (78.9 kDa).

Virion

Morphology

Virus particles are quasi-spherical, with a diameter ranging from 25 to 35 nm, and have a poorly resolved surface structure.

Family: Bromoviridae

Genus: Alfamovirus

Distinguishing features

Alfalfa mosaic virus (AMV) is transmitted in a non-persistent manner by at least 20 aphid species. AMV shares many properties at the molecular level with members of the genus Ilarvirus, which are not transmitted by aphids.

Family: Bromoviridae

Jeremy R. Thompson, Tomás Canto, John P. Carr, Vicente Pallás and Dana Šafářová.

The citation for this ICTV Report chapter is the summary published as Bujarski et al., (2019):
ICTV Virus Taxonomy Profile: Bromoviridae, Journal of General Virology, 100, 1206–1207.

Citation: Endornaviridae

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: Endornaviridae

Dulieu, P., Penin, P., Dulieu, H. & Gautheron, D. C. (1988).  Purification of virus-like particles from Vicia faba and detection by ELISA in crude leaf extracts. Plant Sci 56, 9-14. 

Resources: Endornaviridae

Sequence alignments and tree files:

Figure 2. Endornaviridae:

Tree file (newick format)

Alignment file (FASTA format)