( MV. The results show that the transgeni...)Discovery of the first resistance gene to rice yellow mottle virus

MV. The results show that the transgenic plants have only partial resistance, and for only a short time, and can even end up with a heightened susceptibility. In the particular case of the rice/RYMV interaction, the strategy of introducing a viral gene by transgenic techniques does not bring any advantages compared with the use of natural resistance.

This research can find applications in ways of improving rice production in countries hit by RYMV. Already, the IRD has transferred the gene Rymv1, by crossing, into some agronomically important varieties. The corresponding lineages have been given to various national (Ivory Coast, Senegal, Madagascar) and international research institutions such as the African Rice Centre (Warda, Benin) for them to use in variety selection programmes.

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Source:Institut de Recherche Pour le D茅veloppement


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