Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
DNA demethylases promote bud break in poplar
Year:2016
Research Areas
  • Natural sciences and health sciences,
  • Earth sciences,
  • Molecular, cellular and genetic biology,
  • Biological sciences,
  • Biology,
  • Biological engineering,
  • Plants and animal biology and ecology,
  • Agriculture
Information
Abstract
Epigenetic mechanisms have been proposed to synchronize dormancy-growth transition in trees by generating reversible patterns of epigenetic marks (1, 2). Dormancy consists of growth cessation through the arrest of meristem activity and consequent transformation of the apical meristem into a dormant apical bud. A progressive demethylation of dormant apical bud has been suggested to play a role during the reactivation of growth, bud break (3, 4). However, so far no chromatin remodelers have been functionally related to bud break. In this work we report the identification of two poplar DEMETER-Like genes: PtaDML8 and PtaDML10. Our RT-PCR analyses showed that these genes are highly induced during bud break. Phenological assays showed that PtaDML8-10 knockdown plants (KD) have a delayed bud break. Transcriptome analyses revealed that these KD plants have altered biological processes such as cellular metabolic process, photosynthesis, ribosome biogenesis and response to light or temperature stimulus. We have also identified DMRs (differentially methylated region) in KDs vs. WT plants at bud break. This work shows, for the first time, that PtaDML8 and PtaDML10 are involved in active DNA demethylation required for bud break and growth resume.
International
Si
Congress
Workshop New Frontiers in Plant Biology
970
Place
Centro de Biotecnología y Genómica de Plantas, Pozuelo de Alarcón, Madrid, España
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
15/06/2016
End Date
17/06/2016
From page
10
To page
10
DNA demethylases promote bud break in poplar
Participants
  • Autor: Daniel Conde Rodriguez (UPM)
  • Autor: Alicia Moreno Cortes (UPM)
  • Autor: Anne-Laure Le Gac
  • Autor: Christopher Dervinis
  • Autor: Jose Manuel Ramos Sanchez (UPM)
  • Autor: Matias Kirst
  • Autor: Stéphane Maury
  • Autor: Mariano Manuel Perales (UPM)
  • Autor: Pablo Gonzalez-Melendi De Leon (UPM)
  • Autor: Isabel Marta Allona Alberich (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Departamento: Biotecnología - Biología Vegetal
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