Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress

Amaranth has become increasingly popular due to its highly nutritious grains and ability to tolerate environmental stress. The mechanism underlying defense and adaptation to environmental stress is a complicated process involving DNA methylation and demethylation. These epigenetic features have been...

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Main Authors: Veronika Lancíková, Jana Kačírová, Andrea Hricová
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.1092067/full
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author Veronika Lancíková
Jana Kačírová
Andrea Hricová
author_facet Veronika Lancíková
Jana Kačírová
Andrea Hricová
author_sort Veronika Lancíková
collection DOAJ
description Amaranth has become increasingly popular due to its highly nutritious grains and ability to tolerate environmental stress. The mechanism underlying defense and adaptation to environmental stress is a complicated process involving DNA methylation and demethylation. These epigenetic features have been well documented to play an important role in plant stress response, including heavy metal-induced stress. This study was aimed at the identification and analysis of cytosine-5 DNA methyltransferase (C5-MTase) and demethylase (DMTase) genes in Amaranthus cruentus. Eight C5-MTase and two DMTase genes were identified and described in response to individual heavy metals (Cd, Pb, Zn, Mn) and their combination (Cd/Pb, Cd/Zn, Pb/Zn) in root and leaf tissues. Studied heavy metals, individually and in combinations, differentially regulated C5-MTase and DMTase gene expression. Interestingly, most of the genes were transcriptionally altered under Zn exposure. Our results suggest that identified amaranth MTase and DMTase genes are involved in heavy metal stress responses through regulating DNA methylation and demethylation level in amaranth plants.
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spelling doaj.art-e46c266ce239409893cf3566de9732c72023-01-04T15:45:56ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-01-011310.3389/fpls.2022.10920671092067Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stressVeronika LancíkováJana KačírováAndrea HricováAmaranth has become increasingly popular due to its highly nutritious grains and ability to tolerate environmental stress. The mechanism underlying defense and adaptation to environmental stress is a complicated process involving DNA methylation and demethylation. These epigenetic features have been well documented to play an important role in plant stress response, including heavy metal-induced stress. This study was aimed at the identification and analysis of cytosine-5 DNA methyltransferase (C5-MTase) and demethylase (DMTase) genes in Amaranthus cruentus. Eight C5-MTase and two DMTase genes were identified and described in response to individual heavy metals (Cd, Pb, Zn, Mn) and their combination (Cd/Pb, Cd/Zn, Pb/Zn) in root and leaf tissues. Studied heavy metals, individually and in combinations, differentially regulated C5-MTase and DMTase gene expression. Interestingly, most of the genes were transcriptionally altered under Zn exposure. Our results suggest that identified amaranth MTase and DMTase genes are involved in heavy metal stress responses through regulating DNA methylation and demethylation level in amaranth plants.https://www.frontiersin.org/articles/10.3389/fpls.2022.1092067/fullAmaranthus cruentusmethyltransferasedemethylaseheavy metalsgene expression
spellingShingle Veronika Lancíková
Jana Kačírová
Andrea Hricová
Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
Frontiers in Plant Science
Amaranthus cruentus
methyltransferase
demethylase
heavy metals
gene expression
title Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
title_full Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
title_fullStr Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
title_full_unstemmed Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
title_short Identification and gene expression analysis of cytosine-5 DNA methyltransferase and demethylase genes in Amaranthus cruentus L. under heavy metal stress
title_sort identification and gene expression analysis of cytosine 5 dna methyltransferase and demethylase genes in amaranthus cruentus l under heavy metal stress
topic Amaranthus cruentus
methyltransferase
demethylase
heavy metals
gene expression
url https://www.frontiersin.org/articles/10.3389/fpls.2022.1092067/full
work_keys_str_mv AT veronikalancikova identificationandgeneexpressionanalysisofcytosine5dnamethyltransferaseanddemethylasegenesinamaranthuscruentuslunderheavymetalstress
AT janakacirova identificationandgeneexpressionanalysisofcytosine5dnamethyltransferaseanddemethylasegenesinamaranthuscruentuslunderheavymetalstress
AT andreahricova identificationandgeneexpressionanalysisofcytosine5dnamethyltransferaseanddemethylasegenesinamaranthuscruentuslunderheavymetalstress