The role of H3K4me3 of low temperature memory in Arabidopsis
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ABSTRACT:
PROVIDER: PRJNA899831 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR22245478_1.fastq.gz | Fastqsanger.gz | |||
| SRR22245478_2.fastq.gz | Fastqsanger.gz | |||
| SRR22245479_1.fastq.gz | Fastqsanger.gz | |||
| SRR22245479_2.fastq.gz | Fastqsanger.gz | |||
| SRR22245480_1.fastq.gz | Fastqsanger.gz |
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Project description:Plants experience a wide array of environmental stimuli to form a memory of adversity. Histone modification plays roles in plant stress memory, of which the mechanisms of H3K4me3 of low temperature memory in plants are poorly understood although H3K4me3 is a key histone modification. Combined with phenotypic analysis, chip-seq, and transcriptome analyses were performed to investigate the potential H3K4me3 contributions for different phases of recurring cold stresses Arabidopsis plants. We then performed gene expression profiling analysis using data obtained from RNA-seq of different low temperature treatments.
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Project description:Plants experience a wide array of environmental stimuli to form a memory of adversity. Histone modification plays roles in plant stress memory, of which the mechanisms of H3K4me3 of low temperature memory in plants are poorly understood although H3K4me3 is a key histone modification. Combined with phenotypic analysis, chip-seq, and transcriptome analyses were performed to investigate the potential H3K4me3 contributions for different phases of recurring cold stresses Arabidopsis plants. Chromatin immunoprecipitation DNA-sequencing (ChIP-seq) for H3K4me3 in different low temperature stress.
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Project description:The role of H3K4me3 of low temperature memory in Arabidopsis [ChIP-Seq]
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Project description:Transcriptional memory is critical for the faster reactivation of necessary genes upon environmental changes and requires that the genes were previously in an active state. However, whether transcriptional repression also displays “memory” of the prior transcriptionally inactive state remains unknown. In this study, we show that transcriptional repression of approximately 540 genes in yeast occurs much more rapidly if the genes have been previously repressed during carbon source shifts. This novel transcriptional response has been termed transcriptional repression memory(TREM). Interestingly, Rpd3L histone deacetylase (HDAC), targeted to active promoters induces TREM. Mutants for Rpd3L exhibit increased acetylation at active promoters and delay TREM and RNA PolII dissociation significantly. Surprisingly, the interaction between H3K4me3 and Rpd3L via the Pho23 PHD finger is sufficient to induce histone deacetylation and TREM by Rpd3L. Therefore, we propose that an active mark, H3K4me3 enriched at promoters, instructs Rpd3L HDAC to induce histone deacetylation and TREM.
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Project description:Rpd3L HDAC links H3K4me3 to transcriptional repression memory
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