Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress

Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress

Abiotic stress induces several changes in plants at physiological and molecular level. Plants have evolved regulatory mechanisms guided towards establishment of stress tolerance in which epigenetic modifications play a pivotal role. We provide examples of gene expression changes that are brought abo...

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Main Authors: Manoj Kumar Dhar, Parivartan Vishal, Rahul Sharma, Sanjana Kaul
Format: Article
Language:English
Published: Hindawi Limited 2014-01-01
Series:International Journal of Genomics
Online Access:http://dx.doi.org/10.1155/2014/187146
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spelling doaj-8c7ea0a8bafb4d6eabbe1f65b12a796f2020-11-24T20:54:18ZengHindawi LimitedInternational Journal of Genomics2314-436X2314-43782014-01-01201410.1155/2014/187146187146Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic StressManoj Kumar Dhar0Parivartan Vishal1Rahul Sharma2Sanjana Kaul3Plant Genomics Laboratory, School of Biotechnology, University of Jammu, Jammu 180006, IndiaPlant Genomics Laboratory, School of Biotechnology, University of Jammu, Jammu 180006, IndiaPlant Genomics Laboratory, School of Biotechnology, University of Jammu, Jammu 180006, IndiaSchool of Biotechnology, University of Jammu, Jammu 180006, IndiaAbiotic stress induces several changes in plants at physiological and molecular level. Plants have evolved regulatory mechanisms guided towards establishment of stress tolerance in which epigenetic modifications play a pivotal role. We provide examples of gene expression changes that are brought about by conversion of active chromatin to silent heterochromatin and vice versa. Methylation of CG sites and specific modification of histone tail determine whether a particular locus is transcriptionally active or silent. We present a lucid review of epigenetic machinery and epigenetic alterations involving DNA methylation, histone tail modifications, chromatin remodeling, and RNA directed epigenetic changes.http://dx.doi.org/10.1155/2014/187146
collection DOAJ
language English
format Article
sources DOAJ
author Manoj Kumar Dhar
Parivartan Vishal
Rahul Sharma
Sanjana Kaul
spellingShingle Manoj Kumar Dhar
Parivartan Vishal
Rahul Sharma
Sanjana Kaul
Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
International Journal of Genomics
author_facet Manoj Kumar Dhar
Parivartan Vishal
Rahul Sharma
Sanjana Kaul
author_sort Manoj Kumar Dhar
title Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
title_short Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
title_full Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
title_fullStr Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
title_full_unstemmed Epigenetic Dynamics: Role of Epimarks and Underlying Machinery in Plants Exposed to Abiotic Stress
title_sort epigenetic dynamics: role of epimarks and underlying machinery in plants exposed to abiotic stress
publisher Hindawi Limited
series International Journal of Genomics
issn 2314-436X
2314-4378
publishDate 2014-01-01
description Abiotic stress induces several changes in plants at physiological and molecular level. Plants have evolved regulatory mechanisms guided towards establishment of stress tolerance in which epigenetic modifications play a pivotal role. We provide examples of gene expression changes that are brought about by conversion of active chromatin to silent heterochromatin and vice versa. Methylation of CG sites and specific modification of histone tail determine whether a particular locus is transcriptionally active or silent. We present a lucid review of epigenetic machinery and epigenetic alterations involving DNA methylation, histone tail modifications, chromatin remodeling, and RNA directed epigenetic changes.
url http://dx.doi.org/10.1155/2014/187146
work_keys_str_mv AT manojkumardhar epigeneticdynamicsroleofepimarksandunderlyingmachineryinplantsexposedtoabioticstress
AT parivartanvishal epigeneticdynamicsroleofepimarksandunderlyingmachineryinplantsexposedtoabioticstress
AT rahulsharma epigeneticdynamicsroleofepimarksandunderlyingmachineryinplantsexposedtoabioticstress
AT sanjanakaul epigeneticdynamicsroleofepimarksandunderlyingmachineryinplantsexposedtoabioticstress
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