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Role of the genetic background in resistance to plant viruses

hal.structure.identifierGénétique et Amélioration des Fruits et Légumes [GAFL]
dc.contributor.authorGALLOIS, Jean-Luc
hal.structure.identifierUnité de Pathologie Végétale [PV]
dc.contributor.authorMOURY, Benoît
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGERMAN-RETANA, Sylvie
dc.date.issued2018
dc.identifier.issn1661-6596
dc.description.abstractEnIn view of major economic problems caused by viruses, the development of genetically resistant crops is critical for breeders but remains limited by the evolution of resistance-breaking virus mutants. During the plant breeding process, the introgression of traits from Crop Wild Relatives results in a dramatic change of the genetic background that can alter the resistance efficiency or durability. Here, we conducted a meta-analysis on 19 Quantitative Trait Locus (QTL) studies of resistance to viruses in plants. Frequent epistatic effects between resistance genes indicate that a large part of the resistance phenotype, conferred by a given QTL, depends on the genetic background. We next reviewed the different resistance mechanisms in plants to survey at which stage the genetic background could impact resistance or durability. We propose that the genetic background may impair effector-triggered dominant resistances at several stages by tinkering the NB-LRR (Nucleotide Binding-Leucine-Rich Repeats) response pathway. In contrast, effects on recessive resistances by loss-of-susceptibility-such as eIF4E-based resistances-are more likely to rely on gene redundancy among the multigene family of host susceptibility factors. Finally, we show how the genetic background is likely to shape the evolution of resistance-breaking isolates and propose how to take this into account in order to breed plants with increased resistance durability to viruses.
dc.description.sponsorshipFacteurs cellulaires recrutés par les potyvirus pour leur transport intercellulaire : de nouvelles sources de résistance des plantes? - ANR-16-CE20-0008
dc.language.isoen
dc.publisherMDPI
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectplant
dc.subjectquantitative Trait Loci
dc.subject.endurability
dc.subject.enepistasis
dc.subject.engenetic background
dc.subject.enresistance
dc.subject.envirus
dc.title.enRole of the genetic background in resistance to plant viruses
dc.typeArticle de revue
dc.typeArticle de synthèse
dc.identifier.doi10.3390/ijms19102856
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
dc.subject.halSciences du Vivant [q-bio]/Microbiologie et Parasitologie/Virologie
bordeaux.journalInternational Journal of Molecular Sciences
bordeaux.page2856
bordeaux.volume19
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-02629315
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02629315v1
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