Family: Caliciviridae
Family: Caliciviridae
Jan Vinjé, Mary K. Estes, Pedro Esteves, Kim Y. Green, Kazuhiko Katayama, Nick J. Knowles, Yvan L’Homme, Vito Martella, Harry Vennema and Peter A. White
Citation: Bromoviridae
Citation: Bromoviridae
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:
Jeremy R. Thompson, Tomás Canto, John P. Carr, Vicente Pallás and Dana Šafářová. 2025, ICTV Virus Taxonomy Profile: Bromoviridae 2025. Journal of General Virology 106: 002069
References: Bromoviridae
References: Bromoviridae
Resources: Bromoviridae
Resources: Bromoviridae
Sequence alignments and tree files:
Figure 4
Authors: Bromoviridae
Authors: Bromoviridae
Jeremy R. Thompson*
Bromoviridae Study Group Chair
231 Morrin Road
St Johns
Auckland 1072
Aotearoa New Zealand
E-mail: Jeremy.Thompson@mpi.govt.nz
Genus: Oleavirus
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).
Genus: Ilarvirus
Family: Bromoviridae
Genus: Ilarvirus
Distinguishing features
Genus: Cucumovirus
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.
Genus: Bromovirus
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.
Genus: Anulavirus
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.