Journal
CURRENT BIOLOGY
Volume 23, Issue 17, Pages R807-R811Publisher
CELL PRESS
DOI: 10.1016/j.cub.2013.07.027
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Funding
- European Research Council [233039 ENVGENE]
- BBSRC ISP grant [BB/J004588/1]
- BBSRC [BBS/E/J/000CA369] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/E/J/000CA369] Funding Source: researchfish
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Plants have to cope with constantly changing conditions and need to respond to environmental stresses and seasonal changes in temperature and photoperiod. Alignment of their development with particular seasons requires memory mechanisms and an ability to integrate noisy temperature signals over long time scales. An increasingly well understood example of how seasonal changes influence development is vernalization, the acceleration of flowering by prolonged cold. Vernalization has been dissected in Arabidopsis thaliana and shown to involve a Polycomb-based epigenetic memory system. This minireview summarizes our current understanding of this mechanism and its modulation through adaptation. A key concept that has emerged is that cell-autonomous switching between epigenetic states can provide the basis for quantitative accumulation of environmental memory.
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