Micro-evolutionary dynamics of the rice yellow mottle virus in Madagascar
Informations
- Funding country
France- Acronym
- -
- URL
- -
- Start date
- 5/1/2007
- End date
- 4/30/2010
- Budget
- -
Fundings
| Name | Role | Start | End | Amount |
|---|---|---|---|---|
| Indian Ocean Islands Biodiversity [Biodiversité des îles de l'océan Indien] | Grant | - | - | - |
Organisations
Abstract
The Rice yellow mottle virus (RYMV) is the cause of a new developing rice disease in Madagascar. The mottle virus destroys an important part of the rice production, causes the elimination of sensitive local cultivars, and contributes to the deforestation of the country. We propose an analysis of the micro-evolutional dynamics of the RYMV in Madagascar, based on an interdisciplinary approach (population genetics, plant geography, epidemiology, ecology, pathology) applied with an increasing success to the study of animal and human viruses. An exhaustive analysis of molecular diversity of the RYMV in Madagascar will be conducted. It will make it possible to establish the means of emergence and dispersion of the virus in relation with the ecology of the rice-growing regions and the major climatic factors. Based on the gathered information the risks of new emergences of the RYMV and dissemination of virulent strains will be evaluated. Strategies for controlling the mottle virus through the creation and diffusion of sustainable resistance will thus be proposed. This study of the micro-evolutional dynamics of the RYMV in Madagascar offers a triple interest: to determine the conditions of emergence of the RYMV in a traditionally rice-growing country, to use the gathered information to control the mottle virus using resistance management, and to better understand the emergence of vector transmitted diseases within the insular systems. This project is consistent with the 4th axis of the Madagascar Action Plan (MAP ; http://www.madagascar-presidency.gov.mg/MAP) that clarifies the priorities by the year 2012 to result in a fast, sustainable and environmental friendly development. This project links a FOFIFA team with a team from IRD, the two having already a collaboration experience.