Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA317722 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR3349410.fastq.gz | Fastqsanger.gz | |||
| SRR3349411.fastq.gz | Fastqsanger.gz | |||
| SRR3349412.fastq.gz | Fastqsanger.gz | |||
| SRR3349413.fastq.gz | Fastqsanger.gz | |||
| SRR3349414.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 14 |
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Project description:Histone acetylation and methylation regulate gene expression in eukaryotes, but their effects on the transcriptome of a multicellular organism and on the transcriptomic divergence between species are still poorly understood. Here we present the first genome-wide 1-bp resolution maps of histone acetylation, histone methylation and core histone in Arabidopsis thaliana and a comprehensive analysis of these maps and gene expression data in A. thaliana, A. arenosa and allotetraploids. H3K9 acetylation (H3K9ac) and H3K4 trimethylation (H3K4me3) are correlated, and their high densities near transcriptional start sites determine constitutive expression of genes involved in translation. In contrast, broad distributions of these modifications toward coding regions determine expression variation, especially in genes involved in photosynthesis, carbohydrate metabolism, and defense responses. A dispersed distribution of H3K27me3 and depletion of H3K9ac and H3K4me3 are associated with developmentally repressed genes. Finally, genes affected by histone deacetylase mutation and species divergence tend to show high expression variation. In conclusion, changes in histone acetylation and methylation modulate developmental and environmental gene expression variation within and between species. ChIP-Seq: Identification of distribution of H3K9ac, H3K4me3 and H3 in Arabidopsis thaliana leaf. Expression: Gene expression in the histone deacetylase 1 mutant was generated using t-DNA insertion. mRNA expressions in leaf and flower of the AtHD1 mutant were compared with those of the wild type plants. We conducted 8 replicates of dual-channel microarrays, including 4 biological replicates and individual dye swaps.
2011-02-02 | E-GEOD-22276 | biostudies-arrayexpress
Project description:Histone deacetylase inhibitor enhanced salinity stress response
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Project description:Trichostatin A (TSA) inhibition of histone deacetylase in Arabiodopsis thaliana
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Project description:Histone acetylation and methylation regulate gene expression in eukaryotes, but their effects on the transcriptome of a multicellular organism and on the transcriptomic divergence between species are still poorly understood. Here we present the first genome-wide 1-bp resolution maps of histone acetylation, histone methylation and core histone in Arabidopsis thaliana and a comprehensive analysis of these maps and gene expression data in A. thaliana, A. arenosa and allotetraploids. H3K9 acetylation (H3K9ac) and H3K4 trimethylation (H3K4me3) are correlated, and their high densities near transcriptional start sites determine constitutive expression of genes involved in translation. In contrast, broad distributions of these modifications toward coding regions determine expression variation, especially in genes involved in photosynthesis, carbohydrate metabolism, and defense responses. A dispersed distribution of H3K27me3 and depletion of H3K9ac and H3K4me3 are associated with developmentally repressed genes. Finally, genes affected by histone deacetylase mutation and species divergence tend to show high expression variation. In conclusion, changes in histone acetylation and methylation modulate developmental and environmental gene expression variation within and between species.
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Project description:Arabidopsis HOOKLESS1 Acts as a Histone Acetyltransferase to Promote Cotyledon Greening during Seedling De-etiolation (PRJCA033523)
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Project description:MAPK-triggered chromatin reprogramming by histone deacetylase in plant innate immunity
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Project description:POWERDERESS and HDA9 interact and promote histone H3 deacetylation at specific lysine residues in Arabidopsis. [ChIP-Seq]
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Project description:POWERDERESS and HDA9 interact and promote histone H3 deacetylation at specific lysine residues in Arabidopsis. [RNA-Seq]
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Project description:Histone deacetylase SRT2 mediates ethylene-induced transcriptional repression through interaction with ENAP1
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Project description:Although the Arabidopsis thaliana RPD3-type histone deacetylases have been known to form SIN3 histone deacetylase complexes that are conserved in eukaryotes, it is unknown whether they also form other types of histone deacetylase complexes. Here, we performed affinity purification followed by mass spectrometry and demonstrated that the Arabidopsis RPD3-type histone deacetylases HDA6 and HDA19 can interact with several previously uncharacterized proteins and form three types of plant-specific histone deacetylase complexes, which we named SANT, ESANT, and ARID. RNA-seq indicated that HDA6 and HDA19 function together with other components of the histone deacetylase complexes and co-regulate the expression of a number of genes. HDA6 and HDA19 have been thought to repress gene transcription by histone deacetylation. We found that the histone deacetylase complexes can also repress gene expression via certain histone-deacetylation-independent mechanisms. In the mutants of the histone deacetylase complexes, the expression of a number of stress-induced genes was up-regulated. Several mutants of the histone deacetylase complexes showed severe retardation in growth. Considering that the growth retardation is thought to be a trade-off for the increase of stress tolerance, we predict that the histone deacetylase complexes identified in this study prevent overexpression of stress-induced genes and thereby ensure normal growth of plants under non-stress conditions.
2021-06-10 | GSE166088 | GEO