Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants

Plants being sessile are always exposed to various environmental stresses, and to overcome these stresses, modifications at the epigenetic level can prove vital for their long-term survival. Epigenomics refers to the large-scale study of epigenetic marks on the genome, which include covalent modific...

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Main Authors: Fayaz Ahmad Dar, Naveed Ul Mushtaq, Seerat Saleem, Reiaz Ul Rehman, Tanvir Ul Hassan Dar, Khalid Rehman Hakeem
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:International Journal of Genomics
Online Access:http://dx.doi.org/10.1155/2022/1092894
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author Fayaz Ahmad Dar
Naveed Ul Mushtaq
Seerat Saleem
Reiaz Ul Rehman
Tanvir Ul Hassan Dar
Khalid Rehman Hakeem
author_facet Fayaz Ahmad Dar
Naveed Ul Mushtaq
Seerat Saleem
Reiaz Ul Rehman
Tanvir Ul Hassan Dar
Khalid Rehman Hakeem
author_sort Fayaz Ahmad Dar
collection DOAJ
description Plants being sessile are always exposed to various environmental stresses, and to overcome these stresses, modifications at the epigenetic level can prove vital for their long-term survival. Epigenomics refers to the large-scale study of epigenetic marks on the genome, which include covalent modifications of histone tails (acetylation, methylation, phosphorylation, ubiquitination, and the small RNA machinery). Studies based on epigenetics have evolved over the years especially in understanding the mechanisms at transcriptional and posttranscriptional levels in plants against various environmental stimuli. Epigenomic changes in plants through induced methylation of specific genes that lead to changes in their expression can help to overcome various stress conditions. Recent studies suggested that epigenomics has a significant potential for crop improvement in plants. By the induction and modulation of various cellular processes like DNA methylation, histone modification, and biogenesis of noncoding RNAs, the plant genome can be activated which can help in achieving a quicker response against various plant stresses. Epigenetic modifications in plants allow them to adjust under varied environmental stresses by modulating their phenotypic plasticity and at the same time ensure the quality and yield of crops. The plasticity of the epigenome helps to adapt the plants during pre- and postdevelopmental processes. The variation in DNA methylation in different organisms exhibits variable phenotypic responses. The epigenetic changes also occur sequentially in the genome. Various studies indicated that environmentally stimulated epimutations produce variable responses especially in differentially methylated regions (DMR) that play a major role in the management of stress conditions in plants. Besides, it has been observed that environmental stresses cause specific changes in the epigenome that are closely associated with phenotypic modifications. However, the relationship between epigenetic modifications and phenotypic plasticity is still debatable. In this review, we will be discussing the role of various factors that allow epigenetic changes to modulate phenotypic plasticity against various abiotic stress in plants.
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spelling doaj-art-81cfe25fe2524765a40f82de855ce4b02025-02-03T01:07:36ZengWileyInternational Journal of Genomics2314-43782022-01-01202210.1155/2022/1092894Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in PlantsFayaz Ahmad Dar0Naveed Ul Mushtaq1Seerat Saleem2Reiaz Ul Rehman3Tanvir Ul Hassan Dar4Khalid Rehman Hakeem5Department of BioresourcesDepartment of BioresourcesDepartment of BioresourcesDepartment of BioresourcesSchool of Biosciences and BiotechnologyDepartment of Biological SciencesPlants being sessile are always exposed to various environmental stresses, and to overcome these stresses, modifications at the epigenetic level can prove vital for their long-term survival. Epigenomics refers to the large-scale study of epigenetic marks on the genome, which include covalent modifications of histone tails (acetylation, methylation, phosphorylation, ubiquitination, and the small RNA machinery). Studies based on epigenetics have evolved over the years especially in understanding the mechanisms at transcriptional and posttranscriptional levels in plants against various environmental stimuli. Epigenomic changes in plants through induced methylation of specific genes that lead to changes in their expression can help to overcome various stress conditions. Recent studies suggested that epigenomics has a significant potential for crop improvement in plants. By the induction and modulation of various cellular processes like DNA methylation, histone modification, and biogenesis of noncoding RNAs, the plant genome can be activated which can help in achieving a quicker response against various plant stresses. Epigenetic modifications in plants allow them to adjust under varied environmental stresses by modulating their phenotypic plasticity and at the same time ensure the quality and yield of crops. The plasticity of the epigenome helps to adapt the plants during pre- and postdevelopmental processes. The variation in DNA methylation in different organisms exhibits variable phenotypic responses. The epigenetic changes also occur sequentially in the genome. Various studies indicated that environmentally stimulated epimutations produce variable responses especially in differentially methylated regions (DMR) that play a major role in the management of stress conditions in plants. Besides, it has been observed that environmental stresses cause specific changes in the epigenome that are closely associated with phenotypic modifications. However, the relationship between epigenetic modifications and phenotypic plasticity is still debatable. In this review, we will be discussing the role of various factors that allow epigenetic changes to modulate phenotypic plasticity against various abiotic stress in plants.http://dx.doi.org/10.1155/2022/1092894
spellingShingle Fayaz Ahmad Dar
Naveed Ul Mushtaq
Seerat Saleem
Reiaz Ul Rehman
Tanvir Ul Hassan Dar
Khalid Rehman Hakeem
Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
International Journal of Genomics
title Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
title_full Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
title_fullStr Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
title_full_unstemmed Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
title_short Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants
title_sort role of epigenetics in modulating phenotypic plasticity against abiotic stresses in plants
url http://dx.doi.org/10.1155/2022/1092894
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