Journal
ISCIENCE
Volume 19, Issue -, Pages 358-+Publisher
CELL PRESS
DOI: 10.1016/j.isci.2019.07.045
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Funding
- Heinrich-Heine University
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Plants respond actively to changes in their environment. Variations in nutrient availability elicit substantial transcriptional reprogramming, and we aimed to systematically describe these adjustments and identify the regulators responsible. Using gene coexpression analysis based on 13 different nutrient availability anomalies, we defined and analyzed nutrient stress response signatures. We identified known regulators and could predict functions in nutrient responses for transcriptional regulators previously associated with other processes, thus linking development and environmental interaction. Three of the identified transcriptional regulators, PIF4, HY5, and NF-Y, known from their role in light signaling, targeted a substantial part of the network and may participate in remodeling the global Arabidopsis transcriptome in response to variations of nutrient availability. We present gene coexpression and transcriptional regulation networks, which can be used as tools to further explore regulatory events and dependencies even by users with basic informatics skills.
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