Sclerotinia gemycircularvirus 1

Sclerotinia gemycircularvirus 1 is a single stranded DNA virus with a circular genome that infects the fungus Sclerotinia sclerotiorum.[1] Infection with this virus decreases the virulence of this fungus. The mechanism of this effect is not known.

Sclerotinia gemycircular­virus 1
Virus classification
(unranked): Virus
Realm: Monodnaviria
Kingdom: Shotokuvirae
Phylum: Cressdnaviricota
Class: Repensiviricetes
Order: Geplafuvirales
Family: Genomoviridae
Genus: Gemycircularvirus
Species:
Sclerotinia gemycircular­virus 1
Synonyms
  • Sclerotinia sclerotiorum hypovirulence associated DNA virus 1

Although a number of viruses infect fungi, this virus is the only known example of a DNA virus infecting a fungus.

Virology

The virions are isometric particles, 20–22 nanometers in diameter. The capsid is composed on the viral coat protein (VCP).

Genome

The genome encodes only two proteins—a replicase and the coat protein. The genes are encoded on complementary strands.

Taxonomy

This virus appears to be related to but distinct from members of the Geminiviridae. Unlike geminiviruses, this virus does not have a movement protein. It has been officially classified into the genus Gemycircularvirus within the new family Genomoviridae.[2]

References
  1. Zhang L, Fu Y, Xie J, Jiang D, Li G, Yi X (July 2009). "A novel virus that infecting hypovirulent strain XG36-1 of plant fungal pathogen Sclerotinia sclerotiorum". Virol. J. 6: 96. doi:10.1186/1743-422X-6-96. PMC 2714488. PMID 19583873.
  2. Krupovic M, Ghabrial SA, Jiang D, Varsani A (September 2016). "Genomoviridae: a new family of widespread single-stranded DNA viruses". Arch. Virol. 161 (9): 2633–43. doi:10.1007/s00705-016-2943-3. PMID 27343045.
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