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The TFL1 homologue KSN is a regulator of continuous flowering in rose and strawberry

hal.structure.identifierWakunage Pharmaceutical Co, Ltd
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorIWATA, Ikaru
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorGASTON, Amélia
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierGénétique et Horticulture [GenHort]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorREMAY, Arnaud
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorTHOUROUDE, Tatiana
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorJEAUFFRE, Julien
hal.structure.identifierGénétique et Horticulture [GenHort]
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierLaboratory of Bio-Environmental Sciences, Department of Environmental Engineering
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorKAWAMURA, Koji
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorHIBRAND-SAINT OYANT, Laurence
hal.structure.identifierDivision of Integrated Life Sciences, Graduate School of Biostudies
dc.contributor.authorARAKI, Takashi
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDENOYES-ROTHAN, Beatrice
hal.structure.identifierInstitut de Recherche en Horticulture et Semences [IRHS]
hal.structure.identifierSFR UA 4207 QUAlité et SAnté du Végétal [QUASAV]
dc.contributor.authorFOUCHER, Fabrice
dc.date.issued2012
dc.identifier.issn0960-7412
dc.description.abstractEnFlowering is a key event in plant life, and is finely tuned by environmental and endogenous signals to adapt to different environments. In horticulture, continuous flowering (CF) is a popular trait introduced in a wide range of cultivated varieties. It played an essential role in the tremendous success of modern roses and woodland strawberries in gardens. CF genotypes flower during all favourable seasons, whereas once-flowering (OF) genotypes only flower in spring. Here we show that in rose and strawberry continuous flowering is controlled by orthologous genes of the TERMINAL FLOWER 1 (TFL1) family. In rose, six independent pairs of CF/OF mutants differ in the presence of a retrotransposon in the second intron of the TFL1 homologue. Because of an insertion of the retrotransposon, transcription of the gene is blocked in CF roses and the absence of the floral repressor provokes continuous blooming. In OF-climbing mutants, the retrotransposon has recombined to give an allele bearing only the long terminal repeat element, thus restoring a functional allele. In OF roses, seasonal regulation of the TFL1 homologue may explain the seasonal flowering, with low expression in spring to allow the first bloom. In woodland strawberry, Fragaria vesca, a 2-bp deletion in the coding region of the TFL1 homologue introduces a frame shift and is responsible for CF behaviour. A diversity analysis has revealed that this deletion is always associated with the CF phenotype. Our results demonstrate a new role of TFL1 in perennial plants in maintaining vegetative growth and modifying flowering seasonality
dc.language.isoen
dc.publisherWiley
dc.subject.enretrotransposon
dc.subject.enseasonality
dc.subject.enfloral initiation
dc.subject.enperennial plants
dc.subject.enornamentals
dc.title.enThe TFL1 homologue KSN is a regulator of continuous flowering in rose and strawberry
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1365-313X.2011.04776.x
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
bordeaux.journalThe Plant Journal
bordeaux.page116-125
bordeaux.volume69
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01209893
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01209893v1
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