Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods
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 photo...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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2018
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| Acceso en línea: | http://www.publish.csiro.au/FP/FP17195 http://hdl.handle.net/20.500.12123/2385 https://doi.org/10.1071/FP17195 |
| _version_ | 1855034953737175040 |
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| author | Perez Gianmarco, Thomas Slafer, Gustavo A. Gonzalez, Fernanda Gabriela |
| author_browse | Gonzalez, Fernanda Gabriela Perez Gianmarco, Thomas Slafer, Gustavo A. |
| author_facet | Perez Gianmarco, Thomas Slafer, Gustavo A. Gonzalez, Fernanda Gabriela |
| author_sort | Perez Gianmarco, Thomas |
| collection | INTA Digital |
| description | 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2385 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA23852018-06-29T15:24:30Z Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods Perez Gianmarco, Thomas Slafer, Gustavo A. Gonzalez, Fernanda Gabriela Trigo Genética Fisiología vegetal Wheat Genetics Plant physiology 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. EEA Pergamino 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. 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. Fil: González, Fernanda G. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento Ecofisiología; Argentina.CONICET-UNNOBA.CITNOBA; Argentina. 2018-05-14T13:22:31Z 2018-05-14T13:22:31Z 2018-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://www.publish.csiro.au/FP/FP17195 http://hdl.handle.net/20.500.12123/2385 https://doi.org/10.1071/FP17195 eng info:eu-repo/semantics/restrictedAccess application/pdf Functional plant biology 45 (6) : 645-657. (January 2018). |
| spellingShingle | Trigo Genética Fisiología vegetal Wheat Genetics Plant physiology Perez Gianmarco, Thomas Slafer, Gustavo A. Gonzalez, Fernanda Gabriela Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title_full | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title_fullStr | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title_full_unstemmed | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title_short | Wheat pre-anthesis development as affected by photoperiod sensitivity genes (Ppd-1) under contrasting photoperiods |
| title_sort | wheat pre anthesis development as affected by photoperiod sensitivity genes ppd 1 under contrasting photoperiods |
| topic | Trigo Genética Fisiología vegetal Wheat Genetics Plant physiology |
| url | http://www.publish.csiro.au/FP/FP17195 http://hdl.handle.net/20.500.12123/2385 https://doi.org/10.1071/FP17195 |
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