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dc.contributor.authorCarmona, María José-
dc.contributor.authorCubas Domínguez, Pilar-
dc.contributor.authorMartínez-Zapater, José M.-
dc.identifier.citationPlant Physiology 130(1): 68-77 (2002)es_ES
dc.description.abstractThe flowering process in grapevine (Vitis vinifera) takes place in buds and extends for two consecutive growing seasons. To understand the genetic and molecular mechanisms underlying this process, we have characterized grapevine bud development, cloned the grapevineFLORICAULA/LEAFY (FLO/LFY) ortholog, VFL, and analyzed its expression patterns during vegetative and reproductive development. Flowering induction takes place during the first season. Upon induction, the shoot apical meristem begins to produce lateral meristems that will give rise to either inflorescences or tendrils. During the second season, after a winter dormancy period, buds reactivate and inflorescence meristems give rise to flower meristems. VFL is expressed in lateral meristems that give rise to inflorescence and flower meristems, consistent with a role in reproductive development. Furthermore,VFL is also detected in other meristematic regions such as the vegetative shoot apical meristem and the lateral meristems that will give rise to tendrils. VFL is also expressed in leaf primordia and in growing leaf margins until later stages of development. Accumulation of VFL transcripts in cell-proliferating regions suggests a role for VFL not only in flower meristem specification, but also in the maintenance of indeterminacy before the differentiation of derivatives of the apical meristem: flowers, leaves, or tendrils.es_ES
dc.description.sponsorshipThis work was supported by the Comunidad Autónoma de Madrid (grant no. 07B/0035/1999) and the Ministerio de Educación Ciencia, Spain (postdoctoral fellowship to P.C.). Support to research activity at Centro Nacional de Biotecnologı́a is provided through specific agreement of Consejo Superior de Investigaciones Cientı́ficas-Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentariaes_ES
dc.publisherAmerican Society of Plant Physiologistses_ES
dc.titleVFL, the Grapevine FLORICAULA/LEAFYOrtholog, Is Expressed in Meristematic Regions Independently of Their Fate1es_ES
dc.description.peerreviewedPeer reviewedes_ES
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