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Genetic dissection of fruit quality traits in the octoploid cultivated strawberry highlights the role of homoeo-QTL in their control

hal.structure.identifierCréation Variétale Fraises Fruits Rouges [Ciref]
dc.contributor.authorLERCETEAU-KÖHLER, E.
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGUÉRIN, G.
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorRENAUD, Christel
hal.structure.identifierCréation Variétale Fraises Fruits Rouges [Ciref]
dc.contributor.authorPETIT, A.
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorROTHAN, Christophe
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDENOYES, Beatrice
dc.date.issued2012
dc.identifier.issn0040-5752
dc.description.abstractEnFruit quality traits are major breeding targets in the Rosaceae. Several of the major Rosaceae species are current or ancient polyploids. To dissect the inheritance of fruit quality traits in polyploid fleshy fruit species, we used a cultivated strawberry segregating population comprising a 213 full-sibling F1 progeny from a cross between the variety 'Capitola' and the genotype 'CF1116'. We previously developed the most comprehensive strawberry linkage map, which displays seven homoeology groups (HG), including each four homoeology linkage groups (Genetics 179:2045-2060, 2008). The map was used to identify quantitative trait loci (QTL) for 19 fruit traits related to fruit development, texture, colour, anthocyanin, sugar and organic acid contents. Analyses were carried out over two or three successive years on field-grown plants. QTL were detected for all the analysed traits. Because strawberry is an octopolyploid species, QTL controlling a given trait and located at orthologous positions on different homoeologous linkage groups within one HG are considered as homoeo-QTL. We found that, for various traits, about one-fourth of QTL were putative homoeo-QTL and were localised on two linkage groups. Several homoeo-QTL could be detected the same year, suggesting that several copies of the gene underlying the QTL are functional. The detection of some other homoeo-QTL was year-dependent. Therefore, changes in allelic expression could take place in response to environmental changes. We believe that, in strawberry as in other polyploid fruit species, the mechanisms unravelled in the present study may play a crucial role in the variations of fruit quality.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectFRAISIER
dc.subjectGENETIQUE
dc.subject.enROSACEE
dc.subject.enESPECE POLYPLOIDE
dc.title.enGenetic dissection of fruit quality traits in the octoploid cultivated strawberry highlights the role of homoeo-QTL in their control
dc.typeArticle de revue
dc.identifier.doi10.1007/s00122-011-1769-3
dc.subject.halSciences du Vivant [q-bio]/Génétique
bordeaux.journalTAG Theoretical and Applied Genetics
bordeaux.page1059-1077
bordeaux.volume124
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-02647763
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02647763v1
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