Authors: Chrysoviridae

Ioly Kotta-Loizou*
Department of Life Sciences
Imperial College London
London, SW7 2AZ
United Kingdom
E-mail: [email protected]

Family: Chrysoviridae

Ioly Kotta-Loizou, José R. Castón, Robert H.A. Coutts, Bradley I. Hillman, Daohong Jiang, Dae-Hyuk Kim, Hiromitsu Moriyama and Nobuhiro Suzuki

Family: Partitiviridae

Genus: Cryspovirus

Family: Partitiviridae

Genus: Deltapartitivirus

Distinguishing features

All members of the genus Deltapartitivirus infect plants. Deltapartitiviruses have two dsRNA segments that are believed to be individually encapsidated in separate particles and the genome is typically 3.1–3.2 kbp in total. 

Family: Partitiviridae

Genus: Gammapartitivirus

Distinguishing features

All known members of the genus Gammapartitivirus infect ascomycetous fungi. Gammapartitiviruses have two dsRNA segments that are believed to be individually encapsidated in separate particles. The genome is typically 3.1–3.4 kbp in total. 

Family: Partitiviridae

Genus: Betapartitivirus

Distinguishing features

Members of the genus Betapartitivirus infect plants and fungi. Betapartitiviruses have two dsRNA segments that are believed to be individually encapsidated in separate particles, and genomes typically ranging from 4.3–4.8 kbp in total. 

Family: Partitiviridae

Genus: Alphapartitivirus

Distinguishing features

Members of the genus Alphapartitivirus infect plants, ascomycetous or basidiomycetous fungi. All members have two dsRNA segments of similar sizes that are individually encapsidated in separate particles. Alphapatitivirus genomes typically range from 3.6 to 3.9 kbp in total. 

Citation: Partitiviridae

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:

Resources: Partitiviridae

Sequence alignments and tree files:

Figure 4. Partitiviridae:

Tree file (newick format)

Alignment file (fasta format)

References: Partitiviridae

Abou-Elnasr, M., Jones, A. & Mayo, M. (1985).  Detection of dsRNA in particles of vicia cryptic virus and in Vicia faba tissues and protoplasts. J Gen Virol 66, 2453-2460. 

Accotto, G. P. & Boccardo, G. (1986).  The coat proteins and nucleic acids of two beet cryptic viruses. J Gen Virol 67, 363-366.