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Combining SelectivePressures to Enhancethe Durability ofDisease ResistanceGenes Denis BourguetFrançois DelmottePierre Franck2016 год

Combining Selective Pressures to Enhance the Durability of Disease Resistance Genes
review

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Аннотация: The efficacy of disease resistance genes in plants decreases over time because of the selection of virulent pathogen genotypes. A key goal of crop protection programs is to increase the durability of the resistance conferred by these genes. The spatial and temporal deployment of plant disease resistance genes is considered to be a major factor determining their durability. In the literature, four principal strategies combining resistance genes over time and space have been considered to delay the evolution of virulent pathogen genotypes: cultivars mixture, rotation, landscape deployment, pyramiding. We reviewed this literature with the aim of determining which deployment strategy results in the greatest durability of resistance genes. Although theoretical and empirical studies comparing deployment strategies of more than one resistance gene are very scarce, they suggest that the overall durability of disease resistance genes can be increased by combining their presence in the same plant (pyramiding). Retrospective analyses of field monitoring data also suggest that the pyramiding of disease resistance genes within a plant is the most durable strategy. By extension, we suggest that the combination of disease resistance genes with other practices for pathogen control (pesticides, farming practices) may be a relevant management strategy to slow down the evolution of virulent pathogen genotypes.
Год издания: 2016
Авторы: Denis Bourguet, François Delmotte, Pierre Franck, Thomas Guillemaud, Xavier Reboud, Corinne Vacher, Anne Sophie A. S. Walker
Издательство: Frontiers Media
Источник: Frontiers in Plant Science
Ключевые слова: Wheat and Barley Genetics and Pathology, Plant Virus Research Studies, Plant-Microbe Interactions and Immunity
Другие ссылки: Frontiers in Plant Science (PDF)
Frontiers in Plant Science (HTML)
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HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
PubMed Central (HTML)
PubMed (HTML)