Arabidopsis thaliana
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB13418 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| DRR360258.fastq.gz | Fastqsanger.gz | |||
| DRR360259.fastq.gz | Fastqsanger.gz | |||
| DRR360260.fastq.gz | Fastqsanger.gz | |||
| DRR360261.fastq.gz | Fastqsanger.gz | |||
| DRR360262.fastq.gz | Fastqsanger.gz |
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Project description:Analysis of genome-wide distribution of histone H4 acetylation in hda19 mutant and of HDA19 bound regions in the wild-type in response to shoot induction
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Project description:Epigenetic regulation of gene expression is critical for controlling embryonic properties during the embryo-to-seedling phase transition. Here we report that a HISTONE DEACETYLASE19 (HDA19)-associated regulator, SCARECROW LIKE15 (SCL15), is essential for repressing the seed maturation program in vegetative tissues. SCL15 is expressed and GFP-tagged SCL15 predominantly localizes to the vascular bundles, particularly in the phloem companion cells and neighbouring specialized cells. Mutation of SCL15 leads to a global shift in gene expression in seedlings to a profile resembling late embryogenesis in seeds. In scl15 seedlings, many genes involved in seed maturation are markedly derepressed and 12S globulin accumulates; this is correlated with elevated levels of histone acetylation at a subset of seed-specific loci. SCL15 physically interacts with HDA19 and direct targets of HDA19-SCL15 association are identified. These studies revealed that SCL15 acts as an HDA19-associated regulator to repress embryonic traits in seedlings. Two-condition experiment: wild type vs. scl15 mutant seedlings. Biological replicates: 3 wild type and 3 mutant, independently grown and harvested. One replicate per array. Dye-swaps were performed.
2015-03-30 | E-GEOD-67395 | biostudies-arrayexpress
Project description:Epigenetic regulation of gene expression is critical for controlling embryonic properties during the embryo-to-seedling phase transition. Here we report that a HISTONE DEACETYLASE19 (HDA19)-associated regulator, SCARECROW LIKE15 (SCL15), is essential for repressing the seed maturation program in vegetative tissues. SCL15 is expressed and GFP-tagged SCL15 predominantly localizes to the vascular bundles, particularly in the phloem companion cells and neighbouring specialized cells. Mutation of SCL15 leads to a global shift in gene expression in seedlings to a profile resembling late embryogenesis in seeds. In scl15 seedlings, many genes involved in seed maturation are markedly derepressed and 12S globulin accumulates; this is correlated with elevated levels of histone acetylation at a subset of seed-specific loci. SCL15 physically interacts with HDA19 and direct targets of HDA19-SCL15 association are identified. These studies revealed that SCL15 acts as an HDA19-associated regulator to repress embryonic traits in seedlings.
2015-03-30 | GSE67395 | GEO
Project description:Plants grow continuously and undergo numerous changes in their vegetative morphology and physiology during their life span. The molecular basis of these changes is largely unknown. To provide a more comprehensive picture of shoot development in Arabidopsis, microarray analysis was used to profile the mRNA content of shoot apices of different ages, as well as leaf primordia and fully-expanded leaves from 6 different positions on the shoot, in early-flowering and late-flowering genotypes. This extensive dataset provides a new and unexpectedly complex picture of shoot development in Arabidopsis. At any given time, the pattern of gene expression is different in every leaf on the shoot, and reflects the activity at least 6 developmental programs. Three of these are specific to individual leaves (leaf maturation, leaf aging, leaf senescence), two occur at the level of the shoot apex (vegetative phase change, floral induction), and one involves the entire shoot (shoot aging). Our results demonstrate that vegetative development is a much more dynamic process that previously imagined, and provide new insights into the underlying mechanism of this process.
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Project description:Gene expression of lpp2 KO mutant in response to ABA.
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Project description:Global gene expression analysis of Arabidopsis ppi2-1 mutant
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Project description:Waters Raw data can be downloaded for shoot- and root parts of Arabidopsis thaliana accessions.
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