Genus: Alphaendornavirus


Genus: Alphaendornavirus

Distinguishing features

Alphaendornaviruses infect plants, fungi and the oomycete Phytophthora sp. They are characterized by longer genomes (>11.9 kb) than those of genus Betaendornavirus and the majority code for a glucosyltransferase domain (Figure 1.Alphaendornavirus). A site-specific nick near the 5′-end of the positive-sense strand of the replicative form has been reported for several alphaendornaviruses.

Figure 1.Alphaendornavirus. Genome organization of Oryza sativa endornavirus isolate Nipponbare, the exemplar isolate of the type species of genus AlphaendornavirusNumbers refer to genome nucleotide positions. The site-specific nick is only present in the coding strand of the replicative intermediates of alphaendornaviruses. Several functional domains present in the virus-encoded polyprotein are depicted by colored boxes.

Virion

See discussion under family description.

Genome organization and replication

See discussion under family description.

Biology

See discussion under family description.

Species demarcation criteria

Members of different species have an overall nucleotide sequence identity below 75%.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Basella alba alphaendornavirus 1Basella alba endornavirus 1EclipseAB844264NC_043109Complete genomeBaEV1
Bell pepper alphaendornavirusbell pepper endornavirusPenolKX977569NC_039216Complete genomeBPEV
Cucumis melo alphaendornavirusCucumis melo endornavirusCL-01KT727022NC_029064Complete genomeCmEV
Erysiphe cichoracearum alphaendornavirusErysiphe cichoracearum endornavirusHBJZ1506KT388110NC_029095Complete genomeEcEV
Grapevine endophyte alphaendornavirusgrapevine endophyte endornavirusSouth AfricaJX678977NC_019493Complete genomeGEEV
Helicobasidium mompa alphaendornavirus 1Helicobasidium mompa endornavirus 11-670AB218287NC_013447Complete genomeHmEV1
Hordeum vulgare alphaendornavirusHordeum vulgare endornavirusNerzKT721705NC_028949Complete genomeHvEV
Hot pepper alphaendornavirushot pepper endornavirusCSKR080326NC_027920Complete genomeHPEV
Lagenaria siceraria alphaendornavirusLagenaria siceraria endornavirusFBKF562072NC_023641Complete genomeLsEV
Oryza rufipogon alphaendornavirusOryza rufipogon endornavirusW-1714AB014344NC_007649Complete genomeOrEV
Oryza sativa alphaendornavirusOryza sativa endornavirusNipponbareD32136NC_007647Complete genomeOsEV
Persea americana alphaendornavirus 1Persea americana endornavirus 1FuerteJN880414NC_016648Complete genomePaEV1
Phaseolus vulgaris alphaendornavirus 1Phaseolus vulgaris endornavirus 1BrazilKT456287NC_039217Complete genomePvEV1
Phaseolus vulgaris alphaendornavirus 2Phaseolus vulgaris endornavirus 2BrazilKT456288NC_038422Complete genomePvEV2
Phytophthora alphaendornavirus 1Phytophthora endornavirus 1USA:ORAJ877914NC_007069Complete genomePEV1
Rhizoctonia cerealis alphaendornavirus 1Rhizoctonia cerealis endornavirus 1R0959KF311065NC_022619Complete genomeRcEV1
Vicia faba alphaendornavirusVicia faba endornavirus447AJ000929NC_007648Complete genomeVfEV
Winged bean alphaendornavirus 1winged bean endornavirus 1ShikakumameLC144945NC_031336Complete genomeWBEV1
Yerba mate alphaendornavirusyerba mate endornavirusINTAKJ634409NC_024455Complete genomeYmEV

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.