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Multi-year analyses on three populations reveal the first stable QTLs for tolerance to rain-induced fruit cracking in sweet cherry (Prunus avium L.)

hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorQUERO-GARCIA, José
hal.structure.identifierAgroécologie et intensification durables des cultures annuelles [UPR AIDA]
hal.structure.identifierDépartement Performances des systèmes de production et de transformation tropicaux [Cirad-PERSYST]
dc.contributor.authorLETOURMY, Philippe
hal.structure.identifierMax Planck Institute for Plant Breeding Research [MPIPZ]
dc.contributor.authorCAMPOY, José Antonio
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBRANCHEREAU, Camille
hal.structure.identifierFruit Growing Institute - Plovdiv
dc.contributor.authorMALCHEV, Svetoslav
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBARRENECHE, Teresa
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDIRLEWANGER, Elisabeth
dc.date.issued2021
dc.identifier.issn2052-7276
dc.description.abstractEnRain-induced fruit cracking is a major problem in sweet cherry cultivation. Basic research has been conducted to disentangle the physiological and mechanistic bases of this complex phenomenon, whereas genetic studies have lagged behind. The objective of this work was to disentangle the genetic determinism of rain-induced fruit cracking. We hypothesized that a large genetic variation would be revealed, by visual field observations conducted on mapping populations derived from well-contrasted cultivars for cracking tolerance. Three populations were evaluated over 7-8 years by estimating the proportion of cracked fruits for each genotype at maturity, at three different areas of the sweet cherry fruit: pistillar end, stem end, and fruit side. An original approach was adopted to integrate, within simple linear models, covariates potentially related to cracking, such as rainfall accumulation before harvest, fruit weight, and firmness. We found the first stable quantitative trait loci (QTLs) for cherry fruit cracking, explaining percentages of phenotypic variance above 20%, for each of these three types of cracking tolerance, in different linkage groups, confirming the high complexity of this trait. For these and other QTLs, further analyses suggested the existence of at least two-linked QTLs in each linkage group, some of which showed confidence intervals close to 5 cM. These promising results open the possibility of developing marker-assisted selection strategies to select cracking-tolerant sweet cherry cultivars. Further studies are needed to confirm the stability of the reported QTLs over different genetic backgrounds and environments and to narrow down the QTL confidence intervals, allowing the exploration of underlying candidate genes.
dc.language.isoen
dc.publisherNature Publishing Group
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectfruit à noyau
dc.subjectarbre fruitier à noyau
dc.subjectéclatement du fruit
dc.subjectdéterminisme génétique
dc.subjectQTL
dc.subject.enFruit cracking
dc.subject.ensweet cherry
dc.subject.enprunus
dc.title.enMulti-year analyses on three populations reveal the first stable QTLs for tolerance to rain-induced fruit cracking in sweet cherry (Prunus avium L.)
dc.typeArticle de revue
dc.identifier.doi10.1038/s41438-021-00571-6
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Amélioration des plantes
bordeaux.journalHorticulture research
bordeaux.page136
bordeaux.volume8
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-03273494
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03273494v1
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