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Fine tuning wheat phenology is of paramount importance for adaptation. A better understanding of how genetic constitution modulates the developmental responses during pre-anthesis phases would help to maintain or even increase yield potential as temperature increases due to climate change. The photoperiod-sensitive cultivar Paragon, and four near isogenic lines with different combinations of insensitivity alleles (Ppd-A1a, Ppd-B1a, Ppd-D1a or their triple
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dc.contributor.author | Perez Gianmarco, Thomas | |
dc.contributor.author | Slafer, Gustavo A. | |
dc.contributor.author | Gonzalez, Fernanda Gabriela | |
dc.date.accessioned | 2018-05-14T13:22:31Z | |
dc.date.available | 2018-05-14T13:22:31Z | |
dc.date.issued | 2018-01 | |
dc.identifier.other | https://doi.org/10.1071/FP17195 | |
dc.identifier.uri | http://www.publish.csiro.au/FP/FP17195 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/2385 | |
dc.description.abstract | Fine tuning wheat phenology is of paramount importance for adaptation. A better understanding of how genetic constitution modulates the developmental responses during pre-anthesis phases would help to maintain or even increase yield potential as temperature increases due to climate change. The photoperiod-sensitive cultivar Paragon, and four near isogenic lines with different combinations of insensitivity alleles (Ppd-A1a, Ppd-B1a, Ppd-D1a or their triple stack) were evaluated under short (12 h) and long (16 h) photoperiods. Insensitivity alleles decreased time to anthesis and duration of the three pre-anthesis phases (vegetative, early reproductive and late reproductive), following the Ppd-D1a > Ppd-A1a > Ppd-B1a ranking of strength. Stacking them intensified the insensitivity, but had no additive effect over that of Ppd-D1a. The late reproductive phase was the most responsive, even exhibiting a qualitative response. Leaf plastochron was not affected but spikelet plastochron increased according to Ppd-1a ranking of strength. Earlier anthesis resulted from less leaves differentiated and a fine tuning effect of accelerated rate of leaf appearance. None of the alleles affected development exclusively during any particular pre-anthesis phase, which would be ideal for tailoring time to anthesis with specific partitioning of developmental time into particular phases. Other allelic variants should be further tested to this purpose. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Functional plant biology 45 (6) : 645-657. (January 2018). | eng |
dc.subject | Trigo | es_AR |
dc.subject | Wheat | eng |
dc.subject | Genética | es_AR |
dc.subject | Genetics | eng |
dc.subject | Fisiología vegetal | es_AR |
dc.subject | Plant physiology | eng |
dc.title | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | EEA Pergamino | es_AR |
dc.description.fil | Fil: Pérez-Gianmarco, Thomas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina. University of Lleida. Department of Crop and Forest Sciences; España. | es_AR |
dc.description.fil | Fil: Slafer, Gustavo A. University of Lleida. Department of Crop and Forest Sciences; España. ICREA (Catalonian Institution for Research and Advanced Studies); España. University of Lleida . AGROTECNIO (Centre for Research in Agrotechnology); España. | es_AR |
dc.description.fil | Fil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina.CONICET-UNNOBA.CITNOBA; Argentina. | es_AR |
dc.subtype | cientifico |
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