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dc.contributor.authorAllario, Thierry
dc.contributor.authorBrumos, Javier
dc.contributor.authorColmenero-Flores, José M.
dc.contributor.authorIglesias, Domingo J.
dc.contributor.authorPina, José A.
dc.contributor.authorNavarro, Luis
dc.contributor.authorTalón, Manuel
dc.contributor.authorOllitrault, Patrick
dc.contributor.authorMorillon, Raphael
dc.date.accessioned2017-06-01T10:12:35Z
dc.date.available2017-06-01T10:12:35Z
dc.date.issued2013
dc.identifier.citationAllario, Thierry, Brumos, J., Colmenero-Flores, J.M., Iglesias, D.J., Pina, J.A., Navarro, L., Talon, M., Ollitrault, P., Morillon, R. (2013). Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production. Plant Cell and Environment, 36(4), 856-868.
dc.identifier.issn0140-7791
dc.identifier.urihttp://hdl.handle.net/20.500.11939/5576
dc.description.abstractWhole-genome duplication, or polyploidy, is common in many plant species and often leads to better adaptation to adverse environmental condition. However, little is known about the physiological and molecular determinants underlying adaptation. We examined the drought tolerance in diploid (2x) and autotetraploid (4x) clones of Rangpur lime (Citrus limonia) rootstocks grafted with 2x Valencia Delta sweet orange (Citrus sinensis) scions, named V/2xRL and V/4xRL, respectively. Physiological experiments to study rootshoot communication associated with gene expression studies in roots and leaves were performed. V/4xRL was much more tolerant to water deficit than V/2xRL. Gene expression analysis in leaves and roots showed that more genes related to the response to water stress were differentially expressed in V/2xRL than in V/4xRL. Prior to the stress, when comparing V/4xRL to V/2xRL, V/4xRL leaves had lower stomatal conductance and greater abscisic acid (ABA) content. In roots, ABA content was higher in V/4xRL and was associated to a greater expression of drought responsive genes, including CsNCED1, a pivotal regulatory gene of ABA biosynthesis. We conclude that tetraploidy modifies the expression of genes in Rangpur lime citrus roots to regulate long-distance ABA signalling and adaptation to stress.
dc.language.isoen
dc.titleTetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production
dc.typearticle
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.date.issuedFreeFormAPR 2013
dc.entidadIVIACentro de Genómica
dc.entidadIVIACentro de Citricultura y Producción Vegetal
dc.identifier.doi10.1111/pce.12021
dc.journal.issueNumber4
dc.journal.titlePlant Cell and Environment
dc.journal.volumeNumber36
dc.page.final868
dc.page.initial856
dc.rights.accessRightsopenAccess
dc.source.typeImpreso
dc.type.hasVersionacceptedVersion


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