Analysis of methylated genomic cytosines of maize inbred line W22 in response to drought stress

Sallam, Nehal and Moussa, Mounir and Yacout, Mohamed and El-Seedy, Ayman (2020) Analysis of methylated genomic cytosines of maize inbred line W22 in response to drought stress. CEREAL RESEARCH COMMUNICATIONS, 48 (4). pp. 459-465. ISSN 0133-3720 (print), 1788-9170 (online)

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Abstract

Plants employ DNA methylation to maintain genomic plasticity that allows rapid adaptation to environmental stresses without alteration nucleotide sequence of DNA. The present investigation was carried out to detect DNA methylation changes induced by drought stress in inbred line W22 by using amplifed methylation-polymorphism technique. The maize inbred line W22 encountered extensive DNA methylation variations, including hypo- and hypermethylation as a response to drought stress. Diferential methylation of many genes involved in plant response to drought stress such as Antagonist of Like Heterochromatin Protein1, peptide methionine sulfoxide reductase (MSRA4), 3-isopropylmalate dehydratase large subunit 2, adenylyl cyclase-associated protein, 3-hydroxyisobutyrate dehydrogenase gene, and others was observed.

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