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Genome-wide DNA methylation comparison reveals epigenetically regulated regeneration capacity of Boea hygrometrica during development

ABSTRACT: Genome-wide DNA methylation comparison reveals epigenetically regulated regeneration capacity of Boea hygrometrica during development

PROVIDER: PRJNA489899 | ENA |

REPOSITORIES: ENA

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Genome-wide DNA methylation comparison reveals epigenetically regulated regeneration capacity of Boea hygrometrica during development

Project description:Plants are competent to regenerate new individuals from differentiated tissues under appropriate culture conditions. Although the molecular basis of shoot regeneration has steadily been unraveled, role of DNA methylation in the regulation of plant regeneration capacity remains practically unknown. Here, we established an effective auxin/cytokinin-induced regeneration system of the Chinese resurrection plant Boea hygrometrica through direct organogenesis, and observed that the potential regeneration capacity of leaf explants was gradually decreased with increased age of donor plants. Global transcriptome analysis revealed significant up-regulation of genes required for phenylpropanoid biosynthesis and phytohormone signaling while inhibition of photosynthetic activity in leaf explants during regeneration. Transcriptional changes of positive regulators HY5, STM, EMK and FLA, and negative regulators TSD and CDK involved in plant regeneration, were positively correlated with the regeneration process of B. hygrometrica, implicating their conserved functions across plant species. Comparison of global DNA methylation profiles between expanding young leaves and fully expanded mature leaves with different regeneration capability using whole-genome bisulfite sequencing revealed that increased asymmetrical methylation in mature leaves were predominant distributed in promoter regions, demonstrating their putative inhibitory function for downstream gene expression in B. hygrometrica leaves during maturation. Moreover, the predicted possible DNA methylation control for genes encoding GRCWP1 and BGS40L essential for cell wall architecture, CENL1 controlling extend shoot meristem phases, ANL2 and WRKY75 mediating root hair development, as well as HY5 and two members of ABA signaling components ABF and PP2C also provide new insights into the association of DNA methylation dynamics with regeneration capacity.

2019-11-25 | GSE119683 | GEO

Global transcriptome analysis reveals major roles for protein quality control, autophagy, and reactive oxygen species scavenging during the acquisition of desiccation tolerance in the resurrection plant Boea hygrometrica

2013-12-07 | GSE53058 | GEO

Project description:Transcriptional profiling of resurrection plant Boea hygrometrica comparing control untreated plants with plants treated with dehydration. Goal was to determine the different effects of desiccation with different rates, and drought acclimation on global gene expression in Boea hygrometrica . 8 conditions comparison: untreated plants vs. plants treated with rapid dehydration for 2h (RWC~80%) and 48h (RWC<10%), untreated plants vs.plants treated with slow dehydration for 5d (RWC~80%) and 14d (RWC<10%), untreated plants vs. drought acclimated plants treated with rapid dehydration for 2h (RWC~80%) and 48h (RWC<10%). Biological replicates: 3 control replicates, 3 treated replicates.

2013-12-07 | E-GEOD-53058 | biostudies-arrayexpress

Dorcoceras hygrometricum

Project description:Boea hygrometrica overview

| PRJNA80455 | ENA

Accumulation of acylcarnitines and mitochondrial dysfunction characterize the loss of neonatal myocardial regeneration capacity

Project description:Myocardial regeneration capacity declines during the first week after birth and is linked to the adaptation to oxidative metabolism. Utilizing this regenerative window, we characterized the metabolic changes in myocardial injury in 1-day-old regeneration-competent and 7-day-old regeneration-compromised mice. The mice were either sham-operated or received left anterior descending coronary artery ligation, to induce myocardial infarction (MI) and acute ischemic heart failure. Myocardial tissue samples were collected after 21 days for metabolomics, transcriptomics and proteomics analyses. Phenotypic characterizations were carried out using echocardiography, histology as well as mitochondrial structural and functional measurements. By integrating the findings from metabolome and transcriptome examinations, we identified mitochondrial dysfunction at the level of the carnitine shuttle contributing to myocardial regeneration incompetence. Regeneration failure was linked to accumulation of acylcarnitines and insufficient metabolic capacity for fatty acid beta-oxidation. We further identified specific transcription factors and post-transcriptional regulation contributing to both regeneration competence and failure. Rather than shifting from the preferred myocardial oxidative fuel source, our results put forward the facilitation of mitochondrial fatty acid transport and improving the beta- oxidation pathway to overcome the metabolic barriers for repair and regeneration in adult mammals after MI and heart failure.

2022-02-04 | MSV000088783 | MassIVE

A Comprehensive Transcriptomic and Proteomic Analysis of Hydra Head Regeneration

Project description:The cnidarian freshwater polyp Hydra sp. exhibits an unparalleled regeneration capacity in the animal kingdom. Using an integrative transcriptomic and stable isotope labeling by amino acids in cell culture proteomic/phosphoproteomic approach, we studied stem cell-based regeneration in Hydra polyps.

2017-10-27 | PXD008039 | Pride

A Comprehensive Transcriptomic and Proteomic Analysis of Hydra Head Regeneration

2017-10-26 | PXD008048 | Pride

Genome-wide DNA methylation maps during dehydration in leaf tissues of Boea hygrometrica

Project description:To examine the Boea hygrometrica genome methylation landscape and assess its functional significance during dehydration, we generated the first single-base resolution genome methylation maps for leaf tissues of hydrated, dehydrating to 70% RWC and dehydrating to 10% RWC (desiccating). The overall density of methyl-cytosine was not broadly altered by dehydration. There is, however, a small increase in intensity both for the whole genome and regionally during the first dehydration step (70% RWC) returning to near hydrated levels as leaves desiccate. We identified 5575 differentially methylated region-related genes during dehydration. The finding may provide an important clue for exploring molecular mechanisms and the regulation of desiccation tolerance at the whole-genome level.

2016-07-13 | GSE48904 | GEO

Establishment of intestinal organoid cultures modeling injuryassociated epithelial regeneration [scRNA-seq]

Project description:The capacity of 3D organoids to mimic physiological tissue organization and functionality has provided an invaluable tool to model development and disease in vitro. However, conventional organoid cultures primarily represent the homeostasis of self-organizing including VPA, EPZ6438, LDN193189, and R-Spondin 1 conditioned medium, which mimics the gut epithelium regeneration that produces hyperplastic crypts following injury; therefore, these organoids were designated hyperplastic intestinal organoids (Hyperorganoids). Single-cell RNA sequencing identified different regenerative stem cell populations in our Hyper-organoids that shared molecular features with in vivo injury-responsive Lgr5+ stem cells or Clu+ revival stem cells. Further analysis revealed that VPA and EPZ6438 were indispensable for epigenome reprogramming and regeneration in Hyper-organoids, which functioned through epigenetically regulating YAP signaling. Furthermore, VPA and EPZ6438 synergistically promoted regenerative response in gut upon damage in vivo. In summary, our results demonstrated a new in vitro organoid model to study epithelial regeneration, highlighting the importance of epigenetic reprogramming that pioneers tissue repair.

2021-01-20 | GSE165092 | GEO

Establishment of intestinal organoid cultures modeling injuryassociated epithelial regeneration [ChIP-seq]

2021-01-16 | GSE164940 | GEO

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