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Abstract
Coupling anthesis date to the most suitable environmental conditions is critical for wheat (Triticum aestivum L.) adaptation and yield potential. Development to anthesis is controlled by temperature and photoperiod. Response to photoperiod is chiefly modulated by Ppd-1 genes, but their effect on the quantitative response to photoperiod of (i) time to anthesis and (ii) pre-anthesis phases remains largely unknown. A photoperiod-sensitive spring cultivar, [ver mas...]
dc.contributor.authorPerez Gianmarco, Thomas
dc.contributor.authorSeverini, Alan David
dc.contributor.authorGonzalez, Fernanda Gabriela
dc.dateinfo:eu-repo/date/embargoEnd/2020-12-28
dc.date.accessioned2019-12-27T13:18:51Z
dc.date.available2019-12-27T13:18:51Z
dc.date.issued2019-10
dc.identifier.issn0022-0957
dc.identifier.issn1460-2431(online)
dc.identifier.otherhttps://doi.org/10.1093/jxb/erz483
dc.identifier.urihttps://academic.oup.com/jxb/advance-article-abstract/doi/10.1093/jxb/erz483/5607826?redirectedFrom=fulltext
dc.identifier.urihttp://hdl.handle.net/20.500.12123/6583
dc.description.abstractCoupling anthesis date to the most suitable environmental conditions is critical for wheat (Triticum aestivum L.) adaptation and yield potential. Development to anthesis is controlled by temperature and photoperiod. Response to photoperiod is chiefly modulated by Ppd-1 genes, but their effect on the quantitative response to photoperiod of (i) time to anthesis and (ii) pre-anthesis phases remains largely unknown. A photoperiod-sensitive spring cultivar, Paragon, and near-isogenic lines of it carrying different combinations of Ppd-1a insensitivity alleles were tested under a wide range of photoperiods, including switches in photoperiod at the onset of stem elongation. Using multimodel inference we found that Ppd-1a alleles reduced photoperiod sensitivity of (i) emergence to anthesis and (ii) emergence to onset of stem elongation, both in a less than additive manner, while threshold photoperiod and intrinsic earliness were unaffected. Sensitivity to current photoperiod from onset of stem elongation to flag leaf and from then to anthesis was milder than for previous phases and was not related to variability in Ppd-1. However, ‘memory’ effects of previously experienced photoperiod on the duration from onset of stem elongation to flag leaf were related to variability in Ppd-1. The characterization and quantification provided here of the effects on development of Ppd-1 allelic combinations should help increase accuracy of genotype-to-phenotype models in predicting wheat phenology.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherOxford University Presses_AR
dc.rightsinfo:eu-repo/semantics/embargoedAccesses_AR
dc.sourceJournal of Experimental Botany : 1-45 erz483. (October 2019)es_AR
dc.subjectTrigoes_AR
dc.subjectWheateng
dc.subjectFisiología Vegetales_AR
dc.subjectPlant Physiologyeng
dc.subjectAdaptaciónes_AR
dc.subjectAdaptationeng
dc.subjectDesarrolloes_AR
dc.subjectDevelopmenteng
dc.subjectFotoperiodismoes_AR
dc.subjectPhotoperiodicityeng
dc.titlePhotoperiod-sensitivity genes (Ppd-1) : quantifying their effect on the photoperiod response model in wheates_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/acceptedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Perez Gianmarco, Thomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Ecofisiología; Argentina. CONICET-UNNOBA.CITNOBA; Argentinaes_AR
dc.description.filFil: Severini, Alan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Ecofisiología; Argentinaes_AR
dc.description.filFil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Sección Ecofisiología; Argentina. CONICET-UNNOBA.CITNOBA; Argentinaes_AR
dc.subtypecientifico


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