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Title: The evening complex coordinates environmental and endogenous signals in Arabidopsis
Authors: Daphne Ezer
Jae Hoon Jung
Hui Lan
Surojit Biswas
Laura Gregoire
Mathew S. Box
Varodom Charoensawan
Sandra Cortijo
Xuelei Lai
Dorothee Stöckle
Chloe Zubieta
Katja E. Jaeger
Philip A. Wigge
University of Cambridge
Universite Grenoble Alpes
Mahidol University
Harvard Medical School
Keywords: Agricultural and Biological Sciences
Issue Date: 26-Jun-2017
Citation: Nature Plants. Vol.3, (2017)
Abstract: © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. Plants maximize their fitness by adjusting their growth and development in response to signals such as light and temperature. The circadian clock provides a mechanism for plants to anticipate events such as sunrise and adjust their transcriptional programmes. However, the underlying mechanisms by which plants coordinate environmental signals with endogenous pathways are not fully understood. Using RNA-sequencing and chromatin immunoprecipitation sequencing experiments, we show that the evening complex (EC) of the circadian clock plays a major role in directly coordinating the expression of hundreds of key regulators of photosynthesis, the circadian clock, phytohormone signalling, growth and response to the environment. We find that the ability of the EC to bind targets genome-wide depends on temperature. In addition, co-occurrence of phytochrome B (phyB) at multiple sites where the EC is bound provides a mechanism for integrating environmental information. Hence, our results show that the EC plays a central role in coordinating endogenous and environmental signals in Arabidopsis.
ISSN: 20550278
Appears in Collections:Scopus 2016-2017

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