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Plant Chromatin Catches the Sun

Clara Bourbousse 1 Fredy Barneche 1 Christophe Laloi 2 
2 LGBP - Luminy Génétique et Biophysique des Plantes
BIAM - Institut de Biosciences et Biotechnologies d'Aix-Marseille (ex-IBEB) : DRF/BIAM
Abstract : Plants use solar radiation as energy source for photosynthesis. They also take advantage of the information provided by the varying properties of sunlight, such as wavelength, orientation, and periodicity, to trigger physiological and developmental adaptations to a changing environment. After more than a century of research efforts in plant photobiology, multiple light signaling pathways converging onto chromatin-based mechanisms have now been identified, which in some instances play critical roles in plant phenotypic plasticity. In addition to locus-specific changes linked to transcription regulation, light signals impact higher-order chromatin organization. Here, we summarize current knowledge on how light can affect the global composition and the spatial distribution of chromatin domains. We introduce emerging questions on the functional links between light signaling and the epigenome, and further discuss how different chromatin regulatory layers may interconnect during plant adaptive responses to light.
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Clara Bourbousse, Fredy Barneche, Christophe Laloi. Plant Chromatin Catches the Sun. Frontiers in Plant Science, Frontiers, 2020, 10, pp.1728. ⟨10.3389/fpls.2019.01728⟩. ⟨cea-02506357⟩



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