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Biology 2013, 2(4), 1378-1410; doi:10.3390/biology2041378

Insights into Chromatin Structure and Dynamics in Plants

Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Colney, Norwich NR4 7UH, UK
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Received: 30 October 2013 / Revised: 15 November 2013 / Accepted: 18 November 2013 / Published: 28 November 2013
(This article belongs to the Special Issue Insights from Plant Genomes)
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Abstract

The packaging of chromatin into the nucleus of a eukaryotic cell requires an extraordinary degree of compaction and physical organization. In recent years, it has been shown that this organization is dynamically orchestrated to regulate responses to exogenous stimuli as well as to guide complex cell-type-specific developmental programs. Gene expression is regulated by the compartmentalization of functional domains within the nucleus, by distinct nucleosome compositions accomplished via differential modifications on the histone tails and through the replacement of core histones by histone variants. In this review, we focus on these aspects of chromatin organization and discuss novel approaches such as live cell imaging and photobleaching as important tools likely to give significant insights into our understanding of the very dynamic nature of chromatin and chromatin regulatory processes. We highlight the contribution plant studies have made in this area showing the potential advantages of plants as models in understanding this fundamental aspect of biology. View Full-Text
Keywords: chromatin; histone modifications; histone variants; gene positioning; nuclear structure; chromosome territories; gene expression chromatin; histone modifications; histone variants; gene positioning; nuclear structure; chromosome territories; gene expression
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Rosa, S.; Shaw, P. Insights into Chromatin Structure and Dynamics in Plants. Biology 2013, 2, 1378-1410.

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