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SRX986843: GSM1655651: H3K9ac_42d_ChIP; Arabidopsis thaliana; ChIP-Seq
1 ILLUMINA (Illumina HiSeq 2000) run: 81.7M spots, 4.2G bases, 4.9Gb downloads

Submitted by: Gene Expression Omnibus (GEO)
Study: A Genome-wide Chronological Study of Gene Expression and Two Histone Modifications, H3K4me3 and H3K9ac, during Developmental Leaf Senescence [ChIP-seq]
show Abstracthide Abstract
The genome-wide abundance of two histone modifications, H3K4me3 and H3K9ac, both associated with actively expressed genes, was monitored in Arabidopsis thaliana leaves at different time points during developmental senescence, along with expression in the form of RNA-seq data. H3K9ac and H3K4me3 marks were highly convergent at all stages of leaf aging, but H3K4me3 marks covered nearly twice the gene area as H3K9ac marks. Genes with the greatest fold-change in expression displayed the largest positively-correlated percent change in coverage for both marks. Most senescence up-regulated genes were pre-marked by H3K4me3 and H3K9ac, but at levels below the whole-genome average, and for these genes, gene expression increased without a significant increase in either histone mark. However, for a subset of genes showing increased or decreased expression, the respective gain or loss of H3K4me3 marks were found to closely match the temporal changes in mRNA abundance. 22% of genes that increased expression during senescence showed accompanying changes in H3K4me3 modification, and they include numerous regulatory genes, which may act as primary response genes. Overall design: H3K4me3 and H3K9ac were measured on a genome-wide scale using ChIP-seq at different stages of leaf aging.
Sample: H3K9ac_42d_ChIP
SAMN03473647 • SRS901684 • All experiments • All runs
Instrument: Illumina HiSeq 2000
Strategy: ChIP-Seq
Selection: ChIP
Layout: SINGLE
Construction protocol: As described in paper. As described in paper.
Experiment attributes:
GEO Accession: GSM1655651
External link:
Runs: 1 run, 81.7M spots, 4.2G bases, 4.9Gb
Run# of Spots# of BasesSizePublished


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