Tymovirales

Tymovirales
	Electron micrograph of narcissus mosaic virus (NMV) filamentous virions
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Kitrinoviricota
Class:	Alsuviricetes
Order:	Tymovirales
Families
	Alphaflexiviridae; Betaflexiviridae; Deltaflexiviridae; Gammaflexiviridae; Tymoviridae;

Tymovirales is an order of viruses with five families. The group consists of viruses which have positive-sense, single-stranded RNA genomes. Their genetic material is protected by a special coat protein.

Description

Tymoviruses are mainly plant pathogens first described in 2004.[1] They are characterised by similarities in their replication-associated polyproteins. These account for the majority of their genomic coding capacity. They are considered to form a group, phylogenetically, referred to as flexiviruses, with filamentous virions.[2]

Additional species

A new virus — Sclerotinia sclerotiorum deltaflexivirus 1 — has been described that appears to belong to a new genus in this family.[3] The name Deltaflexiviridae has been proposed for this genus.

Another virus — Fusarium graminearum deltaflexivirus 1 — has been described.[4]

References

Adams MJ, Antinow JF, Bar-Joseph M, Brunt AA, Candresse T, Foster GD, Martelli GP, Milne RG, Fauquet CM (2004). "The new plant family Flexiviridae and assessment of molecular criteria for species demarcation". Arch Virol. 149 (5): 1045–60. doi:10.1007/s00705-004-0304-0. PMID 15098118. S2CID 34493607.
King 2012.
Li K, Zheng D, Cheng J, Chen T, Fu Y, Jiang D, Xie J (2015). "Characterization of a novel Sclerotinia sclerotiorum RNA virus as the prototype of a new proposed family within the order Tymovirales". Virus Res. 219: 92–9. doi:10.1016/j.virusres.2015.11.019. PMID 26603216.
Chen X, He H, Yang X, Zeng H, Qiu D, Guo L (2016). "The complete genome sequence of a novel Fusarium graminearum RNA virus in a new proposed family within the order Tymovirales". Arch Virol. 161 (10): 2899–903. doi:10.1007/s00705-016-2961-1. PMID 27376377. S2CID 15691838.

Bibliography

King, Andrew M. Q.; et al., eds. (2012). "Tymovirales". Virus taxonomy : classification and nomenclature of viruses : ninth report of the International Committee on Taxonomy of Viruses. London: Academic Press. p. 901. ISBN 978-0123846846. Retrieved 9 December 2014.

External links

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[1] Adams MJ, Antinow JF, Bar-Joseph M, Brunt AA, Candresse T, Foster GD, Martelli GP, Milne RG, Fauquet CM (2004). "The new plant family Flexiviridae and assessment of molecular criteria for species demarcation". Arch Virol. 149 (5): 1045–60. doi:10.1007/s00705-004-0304-0. PMID 15098118. S2CID 34493607.

[FOOTNOTEKing2012-2] King 2012.

[Li2015-3] Li K, Zheng D, Cheng J, Chen T, Fu Y, Jiang D, Xie J (2015). "Characterization of a novel Sclerotinia sclerotiorum RNA virus as the prototype of a new proposed family within the order Tymovirales". Virus Res. 219: 92–9. doi:10.1016/j.virusres.2015.11.019. PMID 26603216.

[Chen2016-4] Chen X, He H, Yang X, Zeng H, Qiu D, Guo L (2016). "The complete genome sequence of a novel Fusarium graminearum RNA virus in a new proposed family within the order Tymovirales". Arch Virol. 161 (10): 2899–903. doi:10.1007/s00705-016-2961-1. PMID 27376377. S2CID 15691838.