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Curr Opin Plant Biol. 2007 Dec;10(6):645-52. Epub 2007 Sep 19.

Histone modifications and dynamic regulation of genome accessibility in plants.

Author information

1
Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, United States.

Abstract

In all eukaryotes chromatin physically restricts the accessibility of the genome to regulatory proteins such as transcription factors. Plant model systems have been instrumental in demonstrating that this restriction is dynamic and changes during development and in response to exogenous cues. Among the multiple epigenetic mechanisms that alter chromatin to regulate gene expression, histone modifications play a major role. Recent studies in Arabidopsis have provided the first genome-wide histone modification maps, revealed important biological roles for histone modifications, and advanced our understanding of stimulus-dependent changes in histone modifications.

PMID:
17884714
PMCID:
PMC2140274
DOI:
10.1016/j.pbi.2007.07.013
[Indexed for MEDLINE]
Free PMC Article

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