Drought induces variation in the DNA methylation status of the barley HvDME promoter

Drosou, Victoria; Kapazoglou, Aliki; Letsiou, Sophia; Tsaftaris, Athanasios; Argiriou, Anagnostis

doi:10.1007/s10265-021-01342-z

Cited by 12 publications

(2 citation statements)

References 78 publications

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“…Plant dry weight and leaf area were significantly reduced, ΦPSII and increased ΦNPQ, higher photosynthetic rate and stomatal conductance [143] Based on our review of previous studies, we found that in general, plants change the extent of DNA methylation in response to drought stress. While two studies in Table 1 showed a genome-wide decrease in DNA methylation levels [122,125], and six studies showed an genome-wide increase in DNA methylation levels [124,128,136,139,140,142], an increase or decrease in methylation levels of the internal part of promoters of drought response genes was specifically determined by the positive or negative regulation of the gene under drought stress [126,127,130,134,135,137,140,143]. The proportion of methylation changes in response to drought mostly ranged from 10 to 20%, but some showed only slight changes, which may be related to tissue specificity [144].…”

Section: Tap5cs Tabadhmentioning

confidence: 99%

Recent Advances in Studies of Genomic DNA Methylation and Its Involvement in Regulating Drought Stress Response in Crops

Fan,

Sun,

Yan

et al. 2024

Plants

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As global arid conditions worsen and groundwater resources diminish, drought stress has emerged as a critical impediment to plant growth and development globally, notably causing declines in crop yields and even the extinction of certain cultivated species. Numerous studies on drought resistance have demonstrated that DNA methylation dynamically interacts with plant responses to drought stress by modulating gene expression and developmental processes. However, the precise mechanisms underlying these interactions remain elusive. This article consolidates the latest research on the role of DNA methylation in plant responses to drought stress across various species, focusing on methods of methylation detection, mechanisms of methylation pattern alteration (including DNA de novo methylation, DNA maintenance methylation, and DNA demethylation), and overall responses to drought conditions. While many studies have observed significant shifts in genome-wide or gene promoter methylation levels in drought-stressed plants, the identification of specific genes and pathways involved remains limited. This review aims to furnish a reference for detailed research into plant responses to drought stress through epigenetic approaches, striving to identify drought resistance genes regulated by DNA methylation, specific signaling pathways, and their molecular mechanisms of action.

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Section: Tap5cs Tabadhmentioning

confidence: 99%

Recent Advances in Studies of Genomic DNA Methylation and Its Involvement in Regulating Drought Stress Response in Crops

Fan,

Sun,

Yan

et al. 2024

Plants

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“…DNA methylation/demethylation is associated with the response to abiotic stressors and stress tolerance in various crops like cereals, vegetables and woody perennials [ 26 , 29 ]. Drought-induced variations in DNA methylation patterns were reported in economically important crops including rice, barley and mulberry [ 30 , 31 , 32 , 33 , 34 , 35 ]. Notably, associations of DNA methylation changes with drought-stress memory were reported in some cases [ 34 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Genetic and Epigenetic Responses of Autochthonous Grapevine Cultivars from the ‘Epirus’ Region of Greece upon Consecutive Drought Stress

Maniatis,

Tani,

Katsileros

et al. 2023

Plants

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Within the framework of preserving and valorizing the rich grapevine germplasm of the Epirus region of Greece, indigenous grapevine (Vitis vinifera L.) cultivars were characterized and assessed for their resilience to abiotic stresses in the context of climate change. The cultivars ‘Debina’ and ‘Dichali’ displayed significant differences in their response to drought stress as judged by morpho-physiological analysis, indicating higher drought tolerance for Dichali. Hence, they were selected for further study aiming to identify genetic and epigenetic mechanisms possibly regulating drought adaptability. Specifically, self-rooted and heterografted on ‘Richter 110’ rootstock plants were subjected to two phases of drought with a recovery period in between. Gene expression analysis was performed for two stress-related miRNAs and their target genes: (a) miRNA159 and putative targets, VvMYB101, VvGATA-26-like, VvTOPLESS-4-like and (b) miRNA156 and putative target gene VvCONSTANS-5. Overall, grafted plants exhibited a higher drought tolerance than self-rooted plants, suggesting beneficial rootstock–scion interactions. Comparative analysis revealed differential gene expression under repetitive drought stresses between the two cultivars as well as between the self-rooted and grafted plants. ‘Dichali’ exhibited an up-regulation of most of the genes examined, which may be associated with increased tolerance. Nevertheless, the profound down-regulation of VvTOPLESS-4-like (a transcriptional co-repressor of transcription factors) upon drought and the concomitant up-regulation of miRNA159 highlights the importance of this ‘miRNA-target’ module in drought responsiveness. DNA methylation profiling using MSAP analysis revealed differential methylation patterns between the two genotypes in response to drought. Further investigations of gene expression and DNA methylation will contribute to our understanding of the epigenetic mechanisms underlying grapevine tolerance to drought stress.

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Regulation of plant epigenetic memory in response to cold and heat stress: towards climate resilient agriculture

Rehman,

Ahmad,

Ramakrishnan

et al. 2023

Funct Integr Genomics

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Drought induces variation in the DNA methylation status of the barley HvDME promoter

Cited by 12 publications

References 78 publications

Recent Advances in Studies of Genomic DNA Methylation and Its Involvement in Regulating Drought Stress Response in Crops

Recent Advances in Studies of Genomic DNA Methylation and Its Involvement in Regulating Drought Stress Response in Crops

Genetic and Epigenetic Responses of Autochthonous Grapevine Cultivars from the ‘Epirus’ Region of Greece upon Consecutive Drought Stress

Regulation of plant epigenetic memory in response to cold and heat stress: towards climate resilient agriculture

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