Archives of Virology (2014) 159, 3421-3426

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 and Pierre-Yves Teycheney (2014)
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
Archives of Virology 159 (12), 3421-3426
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Pierre-Yves Teycheney

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Yam virus X	Yam (Dioscorea)	Guadeloupe