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Spatiotemporal Changes in Varietal Resistance to Wheat Yellow Rust in France Reveal an Increase in Field Resistance Level During the Period 1985-2018

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  • Additional Information
    • Contributors:
      Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) (GQE-Le Moulon); AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); Institut de Génétique, Environnement et Protection des Plantes (IGEPP); Université de Rennes 1 (UR1); Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST; 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)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); BIOlogie et GEstion des Risques en agriculture (BIOGER); AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); ARVALIS; GEVES; Université de Rennes (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest; 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); ARVALIS - Institut du végétal [Paris]; 773311, European Union’s Horizon 2020 Research and Innovation Programme; 513959, European Framework Programme 6; 031499, European Framework Programme 6 Rex; 265865, European Framework Programme 7; 11-116241, Ministry of Higher Education and Science; ANR-11-LABX-0034, Agence Nationale de la Recherche; European Project: 773311,European Union; European Project: 513959,EFP6; European Project: 031499,EFP6Rex; European Project: 265865,EFP7
    • Publication Date:
      2021
    • Abstract:
      Online; International audience; Monitoring spatiotemporal changes in varietal resistance and understanding its drivers seem essential to managing plant diseases but require having access to the genetic basis of disease resistance and to its deployment. In this study, we focused on yellow rust (Puccinia striiformis f. sp. tritici ) for three decades in France, by using field adult plant resistance levels, Yr race-specific resistance genes of varieties, presence of Puccinia striiformis f. sp. tritici pathotypes and their virulence profiles, and systematic surveys of the acreages of bread wheat varieties available at a yearly survey time and at a district level. Based on these data, we studied spatiotemporal changes in varietal resistance over the period from 1985 to 2018 in 54 French administrative districts (hereafter “departments”) by using a set of relevant indicators weighted by the relative acreage proportion of the varieties sown at the department level. Our analyses revealed an increase in varietal resistance over decades that would be due to the accumulation of both quantitative resistance and different race-specific resistance genes. We suggest that, beyond breeders, several actors, including examination offices, agricultural advisory services, and farmers, may have had a substantial influence on these spatiotemporal changes, promoting more resistant varieties and the rapid replacement of newly susceptible varieties by still resistant ones at the beginning of each epidemic.
    • ISSN:
      0031-949X
    • Accession Number:
      edsair.doi.dedup.....2c55fd5eee30ac59d93fa86cf7b26fec