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Identification of successive flowering phases highlights a new genetic control of the flowering pattern in strawberry

hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorPERROTTE, Justine
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
hal.structure.identifierModeling plant morphogenesis at different scales, from genes to phenotype [VIRTUAL PLANTS]
dc.contributor.authorGUÉDON, Yann
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGASTON, Amèlia
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDENOYES, Béatrice
dc.date.issued2016
dc.identifier.issn0022-0957
dc.description.abstractEnThe genetic control of the switch between seasonal and perpetual flowering has been deciphered in various perennial species. However, little is known about the genetic control of the dynamics of perpetual flowering, which changes abruptly at well-defined time instants during the growing season. Here, we characterize the perpetual flowering pattern and identify new genetic controls of this pattern in the cultivated strawberry. Twenty-one perpetual flowering strawberry genotypes were phenotyped at the macroscopic scale for their course of emergence of inflorescences and stolons during the growing season. A longitudinal analysis based on the segmentation of flowering rate profiles using multiple change-point models was conducted. The flowering pattern of perpetual flowering genotypes takes the form of three or four successive phases: an autumn-initiated flowering phase, a flowering pause, and a single stationary perpetual flowering phase or two perpetual flowering phases, the second one being more intense. The genetic control of flowering was analysed by quantitative trait locus mapping of flowering traits based on these flowering phases. We showed that the occurrence of a fourth phase of intense flowering is controlled by a newly identified locus, different from the locus FaPFRU, controlling the switch between seasonal and perpetual flowering behaviour. The role of this locus was validated by the analysis of data obtained previously during six consecutive years.
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subject.enmultiple change-point model
dc.subject.engenetic control
dc.subject.enlongitudinal data analysis
dc.subject.enflowering phase
dc.subject.enFragaria × ananassa
dc.subject.enperpetual flowering
dc.title.enIdentification of successive flowering phases highlights a new genetic control of the flowering pattern in strawberry
dc.typeArticle de revue
dc.identifier.doi10.1093/jxb/erw326
dc.subject.halSciences du Vivant [q-bio]/Biologie du développement
dc.subject.halSciences du Vivant [q-bio]/Génétique
dc.subject.halStatistiques [stat]
bordeaux.journalJournal of Experimental Botany
bordeaux.page5643 - 5655
bordeaux.volume67
bordeaux.issue19
bordeaux.peerReviewedoui
hal.identifierhal-01398331
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01398331v1
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