00.072.0.01. Tobravirus, 00.072. Unassigned

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Nature of Genome:
General Host Type:
Morphology:

positive-stranded ssRNA
Plants
rod-shaped

Family	00.072. Unassigned
	Taxonomic Structure of the Family
	Family 00.072. Unassigned Genus 00.072.0.01. Tobravirus

Genus	00.072.0.01. Tobravirus
Type Species	00.072.0.01.001. Tobacco rattle virus

List of Species Demarcation Criteria in the Genus

The criteria demarcating species in the genus are:

Nucleotide sequences of RNA-1 show <75% identity.

Interspecific pseudo-recombinant isolates cannot be made.

Host ranges differ in specific hosts (e.g. legumes).

RNA-2 sequences and serological relationships are of limited value.

List of Species in the Genus

The ICTVdB virus code and the viruses. Official virus species names are in italics. Tentative virus species names, alternative names ( ), isolates, strains, serotypes, subspecies, or rejected names are not italicized.

Virus codes, virus names, genome sequence accession numbers [ ] and assigned abbreviations ( ), are:

Species, their serotypes, strains and isolates

00.072.0.01.002.	Pea early-browning virus
00.072.0.01.002.00.001.	Pea early-browning virus - E116	RNA-2: [AJ006500]	(PEBV-E116)
00.072.0.01.002.00.002.	Pea early-browning virus - SP5	RNA-1: [X14006]	(PEBV-SP5)
00.072.0.01.002.00.002.	Pea early-browning virus - SP5	RNA-2: [X51828]	(PEBV-SP5)
00.072.0.01.002.00.003.	Pea early-browning virus - TpA56	RNA-2: [X78455]	(PEBV-TpA56)
00.072.0.01.003.	Pepper ringspot virus
00.072.0.01.003.00.001.	Pepper ringspot virus	RNA-1: [L23972]	(PepRSV)
00.072.0.01.003.00.001.	Pepper ringspot virus	RNA-2: [X03241]	(PepRSV)
00.072.0.01.004.	Tobacco rattle virus
00.072.0.01.004.00.001.	Tobacco rattle virus-ON	RNA-2: [Z97357]	(TRV-ON)
00.072.0.01.004.81.010.	Hypochoeris mosaic virus		(HyMV)
00.072.0.01.004.00.002.	Tobacco rattle virus-ORY	RNA-1: [AF034622]	(TRV-ORY)
00.072.0.01.004.00.002.	Tobacco rattle virus-ORY	RNA-2: [AF034621]	(TRV-ORY)
00.072.0.01.004.00.003.	Tobacco rattle virus-PaY4	RNA-2: [AJ250488]	(TRV-PaY4)
00.072.0.01.004.00.004.	Tobacco rattle virus-PLB	RNA-2: [J04347]	(TRV-PLB)
00.072.0.01.004.00.005.	Tobacco rattle virus-PpK20	RNA-1: [AF314165]	(TRV-PpK20)
00.072.0.01.004.00.005.	Tobacco rattle virus-PpK20	RNA-2: [Z36974]	(TRV-PpK20)
00.072.0.01.004.00.006.	Tobacco rattle virus-PSG	RNA-2: [X03686]	(TRV-PSG)
00.072.0.01.004.00.007.	Tobacco rattle virus-Rostock	RNA-2: [AJ272198]	(TRV-Rostock)
00.072.0.01.004.00.008.	Tobacco rattle virus-SP	RNA-2: [AJO07293]	(TRV-SP)
00.072.0.01.004.00.009.	Tobacco rattle virus-SYM	RNA-1: [D00155]	(TRV-SYM)
00.072.0.01.004.00.010.	Tobacco rattle virus-TCM	RNA-2: [X03955]	(TRV-TCM)
00.072.0.01.004.00.011.	Tobacco rattle virus-TpO1	RNA-2: [AJ009833]	(TRV-TpO1)

Tentative Species in the Genus

None reported.

00.072.0.01.004.81.010.

Hypochoeris mosaic virus

(HyMV)

Not listed anymore in 8^th ICTV Report, because it is now believed to be an isolate of Tobacco rattle virus.

Similarity with other Taxa

The 134-141 kDa and 194-201 kDa non-structural proteins contain conserved sequence motifs common to RdRp of many viruses, and are most closely related to the analogous proteins of Tobacco mosaic virus. The 29-30 kDa P1a protein also shares sequence similarities with the analogous 30 kDa protein of Tobacco mosaic virus and, to a lesser extent, with non-structural proteins of some other plant viruses. The structural proteins share sequence motifs with those of other plant viruses with rod-shaped particles. Hypochoeris mosaic virus, previously listed as a tentative species in the genus Furovirus, is now believed to have been an isolate of TRV.

Derivation of Names

Tobra : sigla from tobacco rattle virus.

References

Collated from VIIIth ICTV Report

Contributed by

Robinson, D.J.

Cite this publication as: Index of Viruses - Tobravirus (2006). In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA. http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_index.htm

Version 4 is based on Virus Taxonomy, Classification and Nomenclature of Viruses, 8th ICTV Report of the International Committee on Taxonomy of Viruses. Fauquet, CM, Mayo, MA, Maniloff, J, Desselberger, U, and Ball, LA (EDS) (2005) Elsevier/Academic Press, pp. 1259.

Additional References

Reference List from the 8th ICTV Report
ICTVdB taxon description
ICTVdB Picture Gallery

References to sequence databases at GenBank and PubMed Central:
PubMed Central References; nucleotide sequences; complete genomes

Additional access points to virus species lists, descriptions and images on the web:

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