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01.12.2014 | Brief Report

Molecular characterization of yam virus X, a new potexvirus infecting yams (Dioscorea spp) and evidence for the existence of at least three distinct potexviruses infecting yams

verfasst von: Isabelle Acina Mambole, Lydiane Bonheur, Laurence Svanella Dumas, Denis Filloux, Rose-Marie Gomez, Chantal Faure, David Lange, Fabiola Anzala, Claudie Pavis, Armelle Marais, Philippe Roumagnac, Thierry Candresse, Pierre-Yves Teycheney

Erschienen in: Archives of Virology | Ausgabe 12/2014

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Abstract

The genome of yam virus X (YVX), a new member of the genus Potexvirus from yam (Dioscorea trifida), was completely sequenced. Structural and phylogenetic analysis showed that the closest relative of YVX is nerine virus X. A prevalence study found YVX only in plants maintained in Guadeloupe and showed that it also infects members of the complex D. cayenensis rotundata. This study provides evidence for the existence of two additional potexviruses, one of which infects D. nummularia in Vanuatu and the other, D. bulbifera and D. rotundata in Haiti and D. trifida and D. rotundata in Guadeloupe. This work also shows that existing potexvirus-specific degenerate primers targeting the ORF1-encoded polymerase domain are well suited for the identification of the three potexviruses reported here.

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Titel: Molecular characterization of yam virus X, a new potexvirus infecting yams (Dioscorea spp) and evidence for the existence of at least three distinct potexviruses infecting yams
verfasst von: Isabelle Acina Mambole
Lydiane Bonheur
Laurence Svanella Dumas
Denis Filloux
Rose-Marie Gomez
Chantal Faure
David Lange
Fabiola Anzala
Claudie Pavis
Armelle Marais
Philippe Roumagnac
Thierry Candresse
Pierre-Yves Teycheney
Publikationsdatum: 01.12.2014
Verlag: Springer Vienna
Erschienen in: Archives of Virology / Ausgabe 12/2014
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI: https://doi.org/10.1007/s00705-014-2211-3

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Molecular characterization of yam virus X, a new potexvirus infecting yams (Dioscorea spp) and evidence for the existence of at least three distinct potexviruses infecting yams

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