Phytohormone and Chromatin Crosstalk: The Missing Link For Developmental Plasticity?

Maury, Stéphane; Sow, Mamadou Dia; Gac, Anne-Laure Le; Genitoni, Julien; Lafon‐Placette, Clément; Mozgová, Iva

doi:10.3389/fpls.2019.00395

Cited by 44 publications

(55 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This suggests (i) direct interactions between epigenetics and genetics that can occur through the DNA methylation control of TEs transposition inducing mutations, but also (ii) an interplay between physiological responses and epigenetics (Figure 1) [94,95]. This last point has been recently proposed to occur through chromatin and hormones crosstalk [96][97][98] (Figure 1).…”

Section: Epigenetics In Plants: the Basicsmentioning

confidence: 89%

Advances and Promises of Epigenetics for Forest Trees

Amaral

Ribeyre

Vigneaud

et al. 2020

Forests

Self Cite

View full text Add to dashboard Cite

The importance of tree genetic variability in the ability of forests to respond and adapt to environmental changes is crucial in forest management and conservation. Along with genetics, recent advances have highlighted “epigenetics” as an emerging and promising field of research for the understanding of tree phenotypic plasticity and adaptive responses. In this paper, we review recent advances in this emerging field and their potential applications for tree researchers and breeders, as well as for forest managers. First, we present the basics of epigenetics in plants before discussing its potential for trees. We then propose a bibliometric and overview of the literature on epigenetics in trees, including recent advances on tree priming. Lastly, we outline the promises of epigenetics for forest research and management, along with current gaps and future challenges. Research in epigenetics could use highly diverse paths to help forests adapt to global change by eliciting different innovative silvicultural approaches for natural- and artificial-based forest management.

show abstract

Section: Epigenetics In Plants: the Basicsmentioning

confidence: 89%

Advances and Promises of Epigenetics for Forest Trees

Amaral

Ribeyre

Vigneaud

et al. 2020

Forests

Self Cite

View full text Add to dashboard Cite

show abstract

“…Fiber development is also regulated by phytohormones, including abscisic acid, auxin, gibberellic acid, ethylene, and jasmonic acid [5,[43][44][45][46]. Phytohormones have been reported to alter the chromatin structure through the regulation of chromatin modifiers [47], suggesting a potential crosstalk between phytohormones and histone acetylation. Indeed, the exogenous application of auxin has been shown to decrease the H3K9ac and H3K4ac levels at the KRP7 locus [48], while they have been shown to increase at the SKP2B promoter in Arabidopsis [49].…”

Section: Discussionmentioning

confidence: 99%

“…For example, the expression of all the members of the HD2-like group (GhHDT1501, GhHDT1502, GhHDT1503 and GhHDT1503) and GhSRT1501 from the SRT group were increased in response to ABA relative to the control, while the expression of RPD3/HDA1 group did not change relative to the control ( Figure 6). However, the chromatin modifiers may also regulate hormone signaling and pathways [47]. It has been shown that HDAC inhibitors repress the auxin distribution and accumulation in the root apex by promoting the PIN-FORMED 1 (PIN1) protein degradation [50,51], indicating a crosstalk between phytohormones and HDACs in plants.…”

Section: Discussionmentioning

confidence: 99%

Histone Deacetylase (HDAC) Gene Family in Allotetraploid Cotton and Its Diploid Progenitors: In Silico Identification, Molecular Characterization, and Gene Expression Analysis under Multiple Abiotic Stresses, DNA Damage and Phytohormone Treatments

Imran

Shafiq

Naeem

et al. 2020

IJMS

View full text Add to dashboard Cite

Histone deacetylases (HDACs) play a significant role in a plant’s development and response to various environmental stimuli by regulating the gene transcription. However, HDACs remain unidentified in cotton. In this study, a total of 29 HDACs were identified in allotetraploid Gossypium hirsutum, while 15 and 13 HDACs were identified in Gossypium arboretum and Gossypium raimondii, respectively. Gossypium HDACs were classified into three groups (reduced potassium dependency 3 (RPD3)/HDA1, HD2-like, and Sir2-like (SRT) based on their sequences, and Gossypium HDACs within each subgroup shared a similar gene structure, conserved catalytic domains and motifs. Further analysis revealed that Gossypium HDACs were under a strong purifying selection and were unevenly distributed on their chromosomes. Gene expression data revealed that G. hirsutum HDACs were differentially expressed in various vegetative and reproductive tissues, as well as at different developmental stages of cotton fiber. Furthermore, some G. hirsutum HDACs were co-localized with quantitative trait loci (QTLs) and single-nucleotide polymorphism (SNPs) of fiber-related traits, indicating their function in fiber-related traits. We also showed that G. hirsutum HDACs were differentially regulated in response to plant hormones (abscisic acid (ABA) and auxin), DNA damage agent (methyl methanesulfonate (MMS)), and abiotic stresses (cold, salt, heavy metals and drought), indicating the functional diversity and specification of HDACs in response to developmental and environmental cues. In brief, our results provide fundamental information regarding G. hirsutum HDACs and highlight their potential functions in cotton growth, fiber development and stress adaptations, which will be helpful for devising innovative strategies for the improvement of cotton fiber and stress tolerance.

show abstract

“…While our integrative analysis supports a role of DNA methylation in the developmental and environmental control of specialized metabolisms in plants, other epigenetic modifications such as those targeting histones and non-coding RNAs deserve further investigations. The potential coordination between epigenetics and hormonal controls [ 96 ] for specialized metabolisms is also a future challenge and notably in the frame of improving the production of secondary metabolites for pharmaceutical applications using plant biotechnologies.…”

Section: Discussionmentioning

confidence: 99%

Developmental Methylome of the Medicinal Plant Catharanthus roseus Unravels the Tissue-Specific Control of the Monoterpene Indole Alkaloid Pathway by DNA Methylation

Bernonville

Maury

Delaunay

et al. 2020

IJMS

Self Cite

View full text Add to dashboard Cite

Catharanthus roseus produces a wide spectrum of monoterpene indole alkaloids (MIAs). MIA biosynthesis requires a tightly coordinated pathway involving more than 30 enzymatic steps that are spatio-temporally and environmentally regulated so that some MIAs specifically accumulate in restricted plant parts. The first regulatory layer involves a complex network of transcription factors from the basic Helix Loop Helix (bHLH) or AP2 families. In the present manuscript, we investigated whether an additional epigenetic layer could control the organ-, developmental- and environmental-specificity of MIA accumulation. We used Whole-Genome Bisulfite Sequencing (WGBS) together with RNA-seq to identify differentially methylated and expressed genes among nine samples reflecting different plant organs and experimental conditions. Tissue specific gene expression was associated with specific methylation signatures depending on cytosine contexts and gene parts. Some genes encoding key enzymatic steps from the MIA pathway were found to be simultaneously differentially expressed and methylated in agreement with the corresponding MIA accumulation. In addition, we found that transcription factors were strikingly concerned by DNA methylation variations. Altogether, our integrative analysis supports an epigenetic regulation of specialized metabolisms in plants and more likely targeting transcription factors which in turn may control the expression of enzyme-encoding genes.

show abstract

Phytohormone and Chromatin Crosstalk: The Missing Link For Developmental Plasticity?

Cited by 44 publications

References 75 publications

Advances and Promises of Epigenetics for Forest Trees

Advances and Promises of Epigenetics for Forest Trees

Histone Deacetylase (HDAC) Gene Family in Allotetraploid Cotton and Its Diploid Progenitors: In Silico Identification, Molecular Characterization, and Gene Expression Analysis under Multiple Abiotic Stresses, DNA Damage and Phytohormone Treatments

Developmental Methylome of the Medicinal Plant Catharanthus roseus Unravels the Tissue-Specific Control of the Monoterpene Indole Alkaloid Pathway by DNA Methylation

Contact Info

Product

Resources

About