Authors
Mamadou D Sow, Anne‐Laure Le Gac, Régis Fichot, Sophie Lanciano, Alain Delaunay, Isabelle Le Jan, Marie‐Claude Lesage‐Descauses, Sylvie Citerne, Jose Caius, Véronique Brunaud, Ludivine Soubigou‐Taconnat, Hervé Cochard, Vincent Segura, Cristian Chaparro, Christoph Grunau, Christian Daviaud, Jörg Tost, Franck Brignolas, Steven H Strauss, Marie Mirouze, Stéphane Maury
Publication date
2021/10
Journal
New Phytologist
Volume
232
Issue
1
Pages
80-97
Description
  • Trees are long‐lived organisms that continuously adapt to their environments, a process in which epigenetic mechanisms are likely to play a key role. Via downregulation of the chromatin remodeler DECREASED IN DNA METHYLATION 1 (DDM1) in poplar (Populus tremula × Populus alba) RNAi lines, we examined how DNA methylation coordinates genomic and physiological responses to moderate water deficit.
  • We compared the growth and drought response of two RNAi‐ddm1 lines to wild‐type (WT) trees under well‐watered and water deficit/rewatering conditions, and analyzed their methylomes, transcriptomes, mobilomes and phytohormone contents in the shoot apical meristem.
  • The RNAi‐ddm1 lines were more tolerant to drought‐induced cavitation but did not differ in height or stem diameter growth. About 5000 differentially methylated regions were consistently detected in both RNAi‐ddm1 lines …
Total citations
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