Epigenetics and plant hormone dynamics: a functional and methodological perspective

Rudolf, Jiri; Tomovicova, Lucia; Panzarova, Klara; Fajkus, Jiri; Hejatko, Jan; Skalak, Jan

doi:10.1093/jxb/erae054

Cited by 2 publications

(1 citation statement)

References 306 publications

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“…Although the DNA sequences (SSR loci and RRS data) between the maternal plant (CB) and the plant (EAS) derived from apomixis are identical (Felsenfeld 2014), there are several significant phenotypic differences noted between the two cultivars, including tree architecture and frequency of bract types, dimensions, and color expression (Table 2). These morphological differences are stable following multiple rounds of clonal propagation over 5 years at two commercial nurseries and thus may be attributed to epigenetics, which are associated with either physical or chemical modifications of DNA (Felsenfeld 2014) or regulation of gene expression (Villota-Salazar et al 2016) perhaps via growth regulators that can affect "gene expression and phenotypic plasticity" without affecting the DNA sequences (Rudolf et al 2024).…”

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confidence: 99%

‘Erica’s Appalachian Sunrise’: An Apomitically Derived Cultivar from Cornus florida ‘Comco No. 1’ Cherokee Brave™

Trigiano,

Boggess,

Molnar

et al. 2024

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Cornus florida L. or flowering dogwood is native throughout most of the eastern the southeastern United States and has become a mainstay ornamental tree species grown and sold by numerous small-or large-volume woody plant nurseries. Many of the popular cultivars are clonally propagated selections identified from natural variations present in seedlings growing in the field for disease resistance (e.g., powdery mildew; Windham et al. 2003) or in natural settings (e.g., 'Appalachian Spring', which is resistant to dogwood anthracnose; Windham et al. 1998), "sports" for floral bract/leaf color variations discovered on existing cultivars (Cherokee Sunrise), or cultivars with unique growth and floral bract traits from trees growing in natural environments (Rebecca's Appalachian Angel;Trigiano et al. 2023). Seldom are cultivars of flowering dogwood developed via breeding programs. However, 'Erica's Appalachian Sunrise' [EAS: US Plant Patent (PP) 32,468] was obtained from a breeding attempt between 'Karen's Appalachian Blush' [KAB (PP 13,165 P2;Windham et al. 2003)], which is resistant to powdery mildew, and 'Comco No. 1' Cherokee Brave™ [CB (PP 10,166)], which displays showy pink-red floral bracts in the spring.

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Section: Descriptionmentioning

confidence: 99%

‘Erica’s Appalachian Sunrise’: An Apomitically Derived Cultivar from Cornus florida ‘Comco No. 1’ Cherokee Brave™

Trigiano,

Boggess,

Molnar

et al. 2024

horts

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Epigenetic Modifications of Hormonal Signaling Pathways in Plant Drought Response and Tolerance for Sustainable Food Security

Kaya,

Uğurlar,

Adamakis

2024

IJMS

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Drought significantly challenges global food security, necessitating a comprehensive understanding of plant molecular responses for effective mitigation strategies. Epigenetic modifications, such as DNA methylation and histone modifications, are key in regulating genes and hormones essential for drought response. While microRNAs (miRNAs) primarily regulate gene expression post-transcriptionally, they can also interact with epigenetic pathways as potential effectors that influence chromatin remodeling. Although the role of miRNAs in epigenetic memory is still being explored, understanding their contribution to drought response requires examining these indirect effects on epigenetic modifications. A key aspect of this exploration is epigenetic memory in drought-adapted plants, offering insights into the transgenerational inheritance of adaptive traits. Understanding the mechanisms that govern the maintenance and erasure of these epigenetic imprints provides nuanced insights into how plants balance stability and flexibility in their epigenomes. A major focus is on the dynamic interaction between hormonal pathways—such as those for abscisic acid (ABA), ethylene, jasmonates, and salicylic acid (SA)—and epigenetic mechanisms. This interplay is crucial for fine-tuning gene expression during drought stress, leading to physiological and morphological adaptations that enhance plant drought resilience. This review also highlights the transformative potential of advanced technologies, such as bisulfite sequencing and CRISPR-Cas9, in providing comprehensive insights into plant responses to water deficit conditions. These technologies pave the way for developing drought-tolerant crops, which is vital for sustainable agriculture.

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Epigenetics and plant hormone dynamics: a functional and methodological perspective

Cited by 2 publications

References 306 publications

‘Erica’s Appalachian Sunrise’: An Apomitically Derived Cultivar from Cornus florida ‘Comco No. 1’ Cherokee Brave™

‘Erica’s Appalachian Sunrise’: An Apomitically Derived Cultivar from Cornus florida ‘Comco No. 1’ Cherokee Brave™

Epigenetic Modifications of Hormonal Signaling Pathways in Plant Drought Response and Tolerance for Sustainable Food Security

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