Varicosavirus

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Varicosavirus
Virus classification
Group:
Group V ((−)ssRNA)
Order:
Unassigned
Family:
Unassigned
Genus:
Varicosavirus
Species

Camellia yellow mottle virus
Freesia leaf necrosis virus
Lettuce big-vein associated virus
Tobacco stunt virus

The genus Varicosavirus is a group of related plant viruss associated with the swelling in plant vein tissues. They are negative single stranded RNA[1] viruses with no specific assigned family. Infection occurs through soil by the spores of the fungus Olpidium brassicae.

Genome

The genome consists of a bi-segmented linear, single-stranded negative sense RNA. The first segment is about 6350–7000 nucleotides in length; the second, about 5630–6500 nucleotides in length.[2]

Structure

Virions consist of a non-enveloped rod-shaped capsid, having a helical symmetry of 120–360 nm in length, and a width of 18–30 nm.

Literature

  1. ^ Kormelink et al. "Negative-strand RNA viruses: The plant-infecting counterparts." Virus Research 162(1–2) (2011): 184–202.
  2. ^ Sasaya et al. "The Nucleotide Sequence of RNA1 of Lettuce big-vein virus, Genus Varicosavirus, Reveals Its Relation to Nonsegmented Negative-Strand RNA Viruses." Virology 297.2 (2002): 289–297.

External links