DIOUF, Mame Boucar; GUYADER, Sébastien; NOPOLY, Marie-Michelle; GASPARD, Olyvia; FILLOUX, Denis; CANDRESSE, Thierry; MARAIS, Armelle; UMBER, Marie; TEYCHENEY, Pierre Yves

doi:10.1007/s00705-023-05809-3

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DIOUF, Mame Boucar
Agrosystèmes tropicaux [ASTRO]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]

GUYADER, Sébastien
Agrosystèmes tropicaux [ASTRO]

NOPOLY, Marie-Michelle
Agrosystèmes tropicaux [ASTRO]

Langue

Article de revue

Ce document a été publié dans

Archives of Virology. 2023-06-13, vol. 168, n° 7, p. 180

Springer Verlag

Résumé en anglais

Two members of the family Betaflexiviridae associated with yam (Dioscorea spp.) have been described so far: yam latent virus (YLV) and yam virus Y (YVY). However, their geographical distribution and molecular diversity remain poorly documented. Using a nested RT-PCR assay, we detected YVY in D. alata, D. bulbifera, D. cayenensis, D. rotundata , and D. trifida in Guadeloupe, and in D. rotundata in Côte d'Ivoire, thus extending the known host range of this virus and geographical distribution. Using amplicon sequencing, we determined that the molecular diversity of YVY in the yam samples analyzed in this work ranged between 0.0 and 29.1% and that this diversity is partially geographically structured. We also identified three isolates of banana mild mosaic virus (BanMMV) infecting D. alata in Guadeloupe, providing the first evidence for BanMMV infection in yam.< Réduire

DOI

http://dx.doi.org/10.1007/s00705-023-05809-3

Projet Européen

Maladies infectieuses en milieu insulaire tropical

Project ANR

Amélioration du diagnostic viral pour sécuriser les ressources génétiques végétales - ANR-11-EBIM-0002

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332