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Título: | COP1 dynamics integrate conflicting seasonal light and thermal cues in the control of Arabidopsis elongation |
Autor: | Nieto, Cristina CSIC; Catalán, Pablo; Luengo, Luis Miguel CSIC ORCID; Legris, Martina; López-Salmerón, Vadir; Davière, Jean Michel; Casal, Jorge J.; Ares, Saúl CSIC ORCID ; Prat, Salomé CSIC ORCID | Fecha de publicación: | 19-ago-2022 | Editor: | American Association for the Advancement of Science | Citación: | Science Advances 8(33): eabp8412 (2022) | Resumen: | As the summer approaches, plants experience enhanced light inputs and warm temperatures, two environmental cues with an opposite morphogenic impact. Key components of this response are PHYTOCHROME B (phyB), EARLY FLOWERING 3 (ELF3), and CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1). Here, we used single and double mutant/overexpression lines to fit a mathematical model incorporating known interactions of these regulators. The fitted model recapitulates thermal growth of all lines used and correctly predicts thermal behavior of others not used in the fit. While thermal COP1 function is accepted to be independent of diurnal timing, our model shows that it acts at temperature signaling only during daytime. Defective response of cop1-4 mutants is epistatic to phyB-9 and elf3-8, indicating that COP1 activity is essential to transduce phyB and ELF3 thermosensory function. Our thermal model provides a unique toolbox to identify best allelic combinations enhancing climate change resilience of crops adapted to different latitudes. | Descripción: | Centro de Recursos Fitogenéticos y Agricultura Sostenible (CRF). | Versión del editor: | https://doi.org/10.1126/sciadv.abp8412 | URI: | http://hdl.handle.net/10261/279831 | DOI: | 10.1126/sciadv.abp8412 | E-ISSN: | 2375-2548 |
Aparece en las colecciones: | (CRAG) Artículos (CNB) Artículos (INIA) Artículos |
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COP1Arabi.pdf | 1,03 MB | Adobe PDF | Visualizar/Abrir |
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