Sclerotinia sclerotiorum hypovirulence associated DNA virus 1

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Sclerotinia sclerotiorum hypovirulence associated DNA virus 1
Virus classification
Group: Group II (ssDNA)
Family: Genomoviridae
Genus: Gemycircularvirus

Sclerotinia sclerotiorum hypovirulence associated DNA virus 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.

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

Virology[edit]

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

Genome[edit]

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

Taxonomy[edit]

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[edit]

  1. ^ Zhang L, Fu Y, Xie J, Jiang D, Li G, Yi X (2009) A novel virus that infecting hypovirulent strain XG36-1 of plant fungal pathogen Sclerotinia sclerotiorum. Virol J 6:96
  2. ^ Krupovic M, Ghabrial SA, Jiang D, Varsani A (2016). "Genomoviridae: a new family of widespread single-stranded DNA viruses". Arch Virol. 161 (9): 2633–2643. doi:10.1007/s00705-016-2943-3. PMID 27343045.