Abstract
In temperate and boreal regions, perennial trees arrest cell division in their meristematic tissues during winter dormancy until environmental conditions become appropriate for their renewed growth. Release from the dormant state requires exposure to a period of chilling temperatures similar to the vernalization required for flowering in Arabidopsis. Over the past decade, genomic DNA (gDNA) methylation and transcriptome studies have revealed signatures of chromatin regulation during active growth and winter dormancy. To date, only a few chromatin modification genes, as candidate regulators of these developmental stages, have been functionally characterized in trees. In this work, we summarize the major findings of the chromatin-remodeling role during growth-dormancy cycles and we explore the transcriptional profiling of vegetative apical bud and stem tissues during dormancy. Finally, we discuss genetic strategies designed to improve the growth and quality of forest trees.
Original language | English |
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Article number | 412 |
Journal | Frontiers in Plant Science |
Volume | 10 |
DOIs | |
State | Published - Mar 22 2019 |
Funding
This study was supported by grants AGL2014-53352-R, AGL2010-20595, PCIG13-GA-2013-631630, and INIA-FEDER RF2013-00043-C02-02 awarded to IA, MB, and MP. The work conducted by the U.S. Department of Energy Joint Genome Institute (JGI) was supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The work of MP was supported by the Ramón y Cajal MINECO program (RYC-2012-10194). We really appreciate the great help from the Gene Atlas group: Jeremy Schmutz, Jeremy Phillips, and Joe Carlson. We apologize to all their colleagues whose work has not been cited here because of space restrictions. We acknowledge the Severo Ochoa Programme for Centres of Excellence in R&D 2017–2021. Funding. This study was supported by grants AGL2014-53352-R, AGL2010-20595, PCIG13-GA-2013-631630, and INIA-FEDER RF2013-00043-C02-02 awarded to IA, MB, and MP. The work conducted by the U.S. Department of Energy Joint Genome Institute (JGI) was supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The work of MP was supported by the Ramón y Cajal MINECO program (RYC-2012-10194).
Funders | Funder number |
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JGI | |
U.S. Department of Energy Joint Genome Institute | |
U.S. Department of Energy | RYC-2012-10194 |
Office of Science | |
Ministerio de Economía y Competitividad |
Keywords
- Chromatin remodeling
- Epigenetics
- Growth-dormancy
- Methylation
- Phenology
- Populus