Epidemiology of Yam Viruses in Guadeloupe: Role of Cropping Practices and Seed-Tuber Supply
| Autor: | Mame Boucar Diouf, Sébastien Guyader, Olyvia Gaspard, Eric Francius, Pierre-Yves Teycheney, Marie Umber |
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| Přispěvatelé: | Agrosystèmes tropicaux (ASTRO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Peuplements végétaux et bioagresseurs en milieu tropical (UMR PVBMT), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Mame Boucar Diouf was funded by INRAE and CIRAD. Sébastien Guyader and Marie Umber were funded by INRAE, the Conseil Régional de Guadeloupe and the European Union through the Malin project (2018-FED-1088) and Prodimad under the EU’s Seventh Framework Programme. Pierre-Yves Teycheney was funded by CIRAD, the Conseil Régional de la Réunion and the European Union through the DPP SantéBiodiv project. |
| Rok vydání: | 2022 |
| Předmět: |
Plante hôte
Dioscorea spp viruses epidemiology cropping practices viral diversity vertical transmission weeds reservoirs Virology Badnavirus Guadeloupe Plant Diseases Epidemiological data Dioscorea [SDV.SA.AEP]Life Sciences [q-bio]/Agricultural sciences/Agriculture economy and politics Potyviridae [SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy Virus Épidémiologie Pratique culturale Infectious Diseases [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology Seeds surveillance Yam Mauvaise herbe Closteroviridae |
| Zdroj: | Viruses; Volume 14; Issue 11; Pages: 2366 Viruses Viruses, 2022, 14 (11), pp.2366. ⟨10.3390/v14112366⟩ |
| ISSN: | 1999-4915 |
| Popis: | International audience; The epidemiology of yam viruses remains largely unexplored. We present a large-scale epidemiological study of yam viruses in Guadeloupe based on the analysis of 1124 leaf samples collected from yams and weeds. We addressed the prevalence of cucumber mosaic virus (CMV), Cordyline virus 1 (CoV1), Dioscorea mosaic associated virus (DMaV), yam asymptomatic virus 1 (YaV1), yam mosaic virus (YMV), yam mild mosaic virus (YMMV), badnaviruses, macluraviruses and potexviruses, and the key epidemiological drivers of these viruses. We provide evidence that several weeds are reservoirs of YMMV and that YMMV isolates infecting weeds cluster together with those infecting yams, pointing to the role of weeds in the epidemiology of YMMV. We report the occurrence of yam chlorotic necrosis virus (YCNV) in Guadeloupe, the introduction of YMMV isolates through the importation of yam tubers, and the absence of vertical transmission of YaV1. We identified specific effects on some cropping practices, such as weed management and the use of chemical pesticides, on the occurrence of a few viruses, but no crop-related factor had a strong or general effect on the overall epidemiology of the targeted viruses. Overall, our work provides insights into the epidemiology of yam viruses that will help design more efficient control strategies. |
| Databáze: | OpenAIRE |
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