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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/03/14 17:28:25」(JST)

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Crinivirus is a genus of plant viruses that belong to the family Closteroviridae. They are also known as the lettuce infectious yellows virus group. They are linear, single-stranded positive sense RNA viruses (and are therefore group IV).^[1]

Examples of species whose entire genomes have been sequenced that are currently classified into the genus include the Sweet potato chlorotic stunt virus (SPCSV) and the Lettuce infectious yellows virus (LIYV).^[2]^[3]

Virus particle structure[edit]

The Universal Virus Database describes that the virions of the genus each consists of a non-enveloped, filamentous capsid "with a length of 1200–2000 nm and a width of 10-13 nm".^[3] The capsid is also described to have "helical symmetry".

Genetics[edit]

The viruses of this genus have segmented, bipartite genomes that add up to 7,500–19,500 nucleotides in length. Their genomes also code for proteins that do not form part of the virion particles as well as structural proteins. The Universal Virus Database describes that their genome sequences near their 3'-ends are capable of hairpin-loop formation and also believe that their 5'-ends may have methylated caps.^[3] Each of the viral RNA molecules contains four hair-pin structures and a pseudoknot in the 3'UTR. The pseudoknot is unusual in that it contains a small stem-loop structure inside loop L1.^[4] In the related genus Closterovirus, these secondary structures have been found to be important in viral RNA replication.^[5]

References[edit]

^ ICTVdB Management (2006). 00.017.0.02. Crinivirus. In: ICTVdB—The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA
^ Journal of Virology. 2002 September; 76(18): 9260–9270
^ ^a ^b ^c ICTVdB Management (2006)
^ 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.
^ 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]

Viralzone: Crinivirus
Rfam entry for 3'-terminal pseudoknot in SPCSV
Rfam entry for 3'-terminal pseudoknot of CuYV/BPYV
Rfam entry for 3'-terminal pseudoknot in PYVV

English Journal

Transmission specificities of plant viruses with the newly identified species of the Bemisia tabaci species complex.

Polston JE1, De Barro P, Boykin LM.
Pest management science.Pest Manag Sci.2014 Oct;70(10):1547-52. doi: 10.1002/ps.3738. Epub 2014 Mar 3.
Bemisia tabaci has had a colorful nomenclatural past and is now recognized as a species complex. This new species framework has added many new areas of research including adding new insight into the virus transmission specificity of the species in the B. tabaci species complex. There is a wide dispa
PMID 24464790

Synergistic interactions of begomoviruses with Sweet potato chlorotic stunt virus (genus Crinivirus) in sweet potato (Ipomoea batatas L.).

Cuellar WJ1, Galvez M, Fuentes S, Tugume J, Kreuze J.
Molecular plant pathology.Mol Plant Pathol.2014 Sep 4. doi: 10.1111/mpp.12200. [Epub ahead of print]
Three hundred and ninety-four sweet potato accessions from Latin America and East Africa were screened by polymerase chain reaction (PCR) for the presence of begomoviruses, and 46 were found to be positive. All were symptomless in sweet potato and generated leaf curling and/or chlorosis in Ipomoea s
PMID 25187172

Infectious cDNA clones of the crinivirus Tomato chlorosis virus are competent for systemic plant infection and whitefly-transmission.

Orílio AF1, Fortes IM1, Navas-Castillo J2.
Virology.Virology.2014 Sep;464-465:365-74. doi: 10.1016/j.virol.2014.07.032. Epub 2014 Aug 9.
Tomato chlorosis virus (ToCV) (genus Crinivirus, family Closteroviridae) causes important emergent diseases in tomato and other solanaceous crops. ToCV is not transmitted mechanically and is naturally transmitted by whiteflies. The ToCV genome consists of two molecules of linear, positive-sense RNA
PMID 25113907

Japanese Journal

Production of antiserum and immunodetection of Cucurbit chlorotic yellows virus, a novel whitefly-transmitted crinivirus

KUBOTA Kenji,USUGI Tomio,TSUDA Shinya
Journal of general plant pathology : JGPP 77(2), 116-120, 2011-03-01
NAID 10029720879

Yellowing disease of tomato caused by Tomato chlorosis virus newly recognized in Japan

HIROTA Tomoki,NATSUAKI Tomohide,MURAI Tamotsu,NISHIGAWA Hisashi,NIIBORI Kenji,GOTO Kakushi,HARTONO Sedyo,SUASTIKA Gede,OKUDA Seiichi
Journal of general plant pathology : JGPP 76(2), 168-171, 2010-04-01
NAID 10029719514

新規クリニウイルスによるメロン退緑黄化病(新称)の発生

行徳裕,岡崎真一郎,古田明子 [他]
日本植物病理学会報 75(2), 109-111, 2009-05
2004年、熊本県北部のメロン栽培地帯において葉が黄化する障害が発生し、2004年から2006年に佐賀、宮崎、大分および長崎県でも同様の症状が確認された。本症状は、8〜10月に定植されるアールス系メロンを中心に発生している。九州地域の発生面積は、約200haと推定される。熊本県では、2004年にタバココナジラミバイオタイプQ（以下バイオタイプQ）の発生が初めて確認された。本バイオタイプは、既発生の …
NAID 40016708738

「クリニウイルス」

3'-terminal pseudoknot in SPCSV
	Predicted secondary structure of the 3'-terminal pseudoknot in SPCSV
Identifiers
Symbol	?
Rfam	RF01091
	Other data
RNA type	Cis-reg
Domain(s)	Crinivirus

Crinivirus
Virus classification
Group:	Group IV ((+)ssRNA)
Family:	Closteroviridae
Genus:	Crinivirus
Species
	Abutilon yellows virus; Beet pseudoyellows virus; Cucumber yellows virus; Cucurbit yellow stunting disorder virus; Diodia vein chlorosis virus; Lettuce chlorosis virus; Lettuce infectious yellows virus; Potato yellow vein virus; Sweet potato chlorotic stunt virus; Tomato chlorosis virus; Tomato infectious chlorosis virus