From Wikipedia, the free encyclopedia
Jump to: navigation, search
Virus classification
Group: Group IV ((+)ssRNA)
Family: Closteroviridae
Genus: Closterovirus

?Alligatorweed stunting virus
Beet yellow stunt virus
Beet yellows virus
Burdock yellows virus
Carnation necrotic fleck virus
Carrot yellow leaf virus
?Citrus tristeza virus
Cordyline virus 1
Crinivirus sweet potato chlorotic stunt virus ?Dendrobium vein necrosis virus
?Heracleum virus 6
?Festuca necrosis virus
?Grapevine leafroll-associated virus 3
?Grapevine corky bark-associated virus
?Grapevine leafroll-associated virus 1
?Grapevine leafroll-associated virus 2
?Grapevine leafroll-associated virus 4
?Grapevine leafroll-associated virus
Little cherry virus 1
?Pineapple mealybug wilt-associated virus
?Sugarcane mild mosaic virus
Wheat yellow leaf virus

3'-terminal pseudoknot in BYV
Predicted secondary structure of the 3'-terminal pseudoknot in BYV
Symbol  ?
Rfam RF01100
Other data
RNA type Cis-reg
Domain(s) Closterovirus

Closterovirus, also known as beet yellows viral group, is a plant-infecting viral genus included in family Closteroviridae. This genus has a probably worldwide distribution and includes among other viral species the Beet yellows virus and the tentatively assigned Citrus tristeza virus, rather economically important plant diseases. At least some species require vectors such as aphids or mealybugs for their transmission from plant to plant.[1]

RNA pseudoknot[edit]

The viral RNA molecules of some members of this genus contain four hair-pin structures and a pseudoknot in the 3'UTR.[2] These secondary structures have been found to be important in viral RNA replication.[3]


  1. ^ "ICTVdB Virus Description - Closterovirus". 
  2. ^ Livieratos IC, Eliasco E, Müller G et al. (July 2004). "Analysis of the RNA of Potato yellow vein virus: evidence for a tripartite genome and conserved 3'-terminal structures among members of the genus Crinivirus". J. Gen. Virol. 85 (Pt 7): 2065–75. doi:10.1099/vir.0.79910-0. PMID 15218192. 
  3. ^ Satyanarayana T, Gowda S, Ayllón MA, Albiach-Martí MR, Dawson WO (August 2002). "Mutational analysis of the replication signals in the 3'-nontranslated region of citrus tristeza virus". Virology 300 (1): 140–52. doi:10.1006/viro.2002.1550. PMID 12202214. 

External links[edit]