Revisiting the classification of curtoviruses based on genome-wide pairwise identity
Type
ArticleAuthors
Varsani, ArvindMartin, Darren Patrick
Navas-Castillo, Jesús
Moriones, Enrique
Hernández-Zepeda, Cecilia
Idris, Ali
Murilo Zerbini, F.
Brown, Judith K.
KAUST Department
Biological and Environmental Science and Engineering (BESE) DivisionCenter for Desert Agriculture
Date
2014-01-25Online Publication Date
2014-01-25Print Publication Date
2014-07Permanent link to this record
http://hdl.handle.net/10754/563352
Metadata
Show full item recordAbstract
Members of the genus Curtovirus (family Geminiviridae) are important pathogens of many wild and cultivated plant species. Until recently, relatively few full curtovirus genomes have been characterised. However, with the 19 full genome sequences now available in public databases, we revisit the proposed curtovirus species and strain classification criteria. Using pairwise identities coupled with phylogenetic evidence, revised species and strain demarcation guidelines have been instituted. Specifically, we have established 77% genome-wide pairwise identity as a species demarcation threshold and 94% genome-wide pairwise identity as a strain demarcation threshold. Hence, whereas curtovirus sequences with >77% genome-wide pairwise identity would be classified as belonging to the same species, those sharing >94% identity would be classified as belonging to the same strain. We provide step-by-step guidelines to facilitate the classification of newly discovered curtovirus full genome sequences and a set of defined criteria for naming new species and strains. The revision yields three curtovirus species: Beet curly top virus (BCTV), Spinach severe surly top virus (SpSCTV) and Horseradish curly top virus (HrCTV). © 2014 Springer-Verlag Wien.Citation
Varsani, A., Martin, D. P., Navas-Castillo, J., Moriones, E., Hernández-Zepeda, C., Idris, A., … Brown, J. K. (2014). Revisiting the classification of curtoviruses based on genome-wide pairwise identity. Archives of Virology, 159(7), 1873–1882. doi:10.1007/s00705-014-1982-xSponsors
JNC and EM are members of the Research Group AGR-214, partially funded by Consejeria de Economia, Innovacion y Ciencia, Junta de Andalucia, Spain, cofinanced by FEDER-FSE. AV and DPM are supported by the National Research Foundation, South Africa.Publisher
Springer NatureJournal
Archives of VirologyPubMed ID
24463952ae974a485f413a2113503eed53cd6c53
10.1007/s00705-014-1982-x
Scopus Count
Related articles
- First Report of a New Curtovirus Species, Spinach severe curly top virus, in Commercial Spinach Plants (Spinacia oleracea) from South-Central Arizona.
- Authors: Hernandez C, Brown JK
- Issue date: 2010 Jul
- Fulfilling Koch's postulates for beet curly top Iran virus and proposal for consideration of new genus in the family Geminiviridae.
- Authors: Heydarnejad J, Keyvani N, Razavinejad S, Massumi H, Varsani A
- Issue date: 2013 Feb
- Intergeneric recombination between a new, spinach-infecting curtovirus and a new geminivirus belonging to the genus Becurtovirus: first New World exemplar.
- Authors: Hernández-Zepeda C, Varsani A, Brown JK
- Issue date: 2013 Nov
- Revision of Begomovirus taxonomy based on pairwise sequence comparisons.
- Authors: Brown JK, Zerbini FM, Navas-Castillo J, Moriones E, Ramos-Sobrinho R, Silva JC, Fiallo-Olivé E, Briddon RW, Hernández-Zepeda C, Idris A, Malathi VG, Martin DP, Rivera-Bustamante R, Ueda S, Varsani A
- Issue date: 2015 Jun
- Turnip curly top virus, a highly divergent geminivirus infecting turnip in Iran.
- Authors: Briddon RW, Heydarnejad J, Khosrowfar F, Massumi H, Martin DP, Varsani A
- Issue date: 2010 Sep