Gammaflexiviridae

Gammaflexiviridae
Virus classification
Group:	Group IV ((+)ssRNA)
Order:	Tymovirales
Family:	Gammaflexiviridae
Genus:	Mycoflexivirus
Type Species
Botrytis virus F

Gammaflexiviridae is a family of viruses in the order Tymovirales. Fungi serve as natural hosts. There are currently only one genus (Mycoflexivirus) and one species in this family: the type species Botrytis virus F.^[1][2][3]

Taxonomy

Group: ssRNA(+)

Order: Tymovirales

• Family: Gammaflexiviridae

  • Genus: Mycoflexivirus 

    • Botrytis virus F

^[2]

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]

Genus	Structure	Symmetry	Capsid	Genomic Arrangement	Genomic Segmentation
Mycoflexivirus	Filamentous		Non-Enveloped	Linear	Monopartite

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]

Genus	Host Details	Tissue Tropism	Entry Details	Release Details	Replication Site	Assembly Site	Transmission
Mycoflexivirus	Plants	None	Viral movement; mechanical inoculation	Viral movement	Cytoplasm	Cytoplasm	Mechanical inoculation: pseudococcid mealybugs; Mechanical inoculation: aphids

References

1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
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.

External Links

• Viralzone: Gammaflexiviridae
• ICTV
• UniProt Taxonomy