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

Molecular characterization of yam virus X, a new potexvirus infecting yams ( Dioscorea spp) and... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

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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Publisher
Springer Vienna
Copyright
Copyright © 2014 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-014-2211-3
Publisher site
See Article on Publisher Site

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.

Journal

Archives of VirologySpringer Journals

Published: Dec 1, 2014

References

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