Gammaflexiviridae

Gammaflexiviridae is a family of viruses in the order Tymovirales. Fungi serve as natural hosts. There is only one genus in the family, Mycoflexivirus, which has one species: Botrytis virus F.[1][2][3]

Mycoflexivirus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Tymovirales
Family: Gammaflexiviridae
Genus: Mycoflexivirus

Structure

Viruses in Gammaflexiviridae are non-enveloped, with flexuous and filamentous geometries. The diameter is around 12-13 nm, with a length of 720 nm. Genomes are linear, around 6.8kb in length. The genome has 2 open reading frames.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
MycoflexivirusFilamentousNon-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Fungi serve as the natural host.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
MycoflexivirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: pseudococcid mealybugs; Mechanical inoculation: aphids

References
  1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 15 May 2021.
  3. Howitt, R. L.; Beever, R. E.; Pearson, M. N.; Forster, R. L. (2001). "Genome characterization of Botrytis virus F, a flexuous rod-shaped mycovirus resembling plant 'potex-like' viruses". The Journal of General Virology. 82 (Pt 1): 67–78. doi:10.1099/0022-1317-82-1-67. PMID 11125160.
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