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Memorias de investigación
Communications at congresses:
Orchestrated action of histone marks control reproductive development in Arabidopsis
Year:2016
Research Areas
  • Natural sciences and health sciences
Information
Abstract
The success of sexual reproduction in plants depends on an appropriate timing of flowering and a proper inflorescence growth and flower development to ensure the optimal balance between the number of seeds and the production of resources through photosynthesis. The plant specific chromatin protein EARLY BOLTING IN SHORT DAYS (EBS) is required for proper regulation of flowering time through the repression of the floral integrator gene FT. EBS specifically recognizes di- and trimethylated lysine 4 (K4) in histone H3 (H3K4me2/3), and binds regulatory regions of FT chromatin. In addition, EBS interacts with histone deacetylases such as HDA6 and mutations in the EBS gene cause an increase in the levels of histone H3 acetylation throughout the FT gene body [1]. Our recent studies have revealed a role for EBS in the control of additional developmental processes related to reproductive growth. Under short day conditions plants deficient in EBS function display multiple morphological alterations including reduced apical dominance and phyllotaxy abnormalities. Global gene expression profiling and chromatin immunoprecipitation techniques revealed deregulation of genetic networks controlling shoot apical meristem function and misexpression of class B, C and E floral identity genes that result in defects in flower development including the appearance of frequent floral reversion events. Most recent advances in our understanding of the molecular mechanisms underlying EBS activity in the chromatin-mediated modulation of different aspects of reproductive development will be presented.
International
Si
Congress
Workshop New Frontiers in Plant Biology
970
Place
Centro de Biotecnología y Genómica de Plantas
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
15/06/2016
End Date
17/06/2016
From page
21
To page
21
Orchestrated action of histone marks control reproductive development in Arabidopsis
Participants
  • Autor: Dorota Komar . (UPM)
  • Autor: Jose Antonio Jarillo Quiroga (UPM)
  • Autor: Manuel Angel Piñeiro Galvin (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
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