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GSE34547
Oryza sativa
6 Downloadable Samples
Affymetrix Rice Genome Array (rice)
Description
OsbZIP58 is a regulator of starch synthesis in rice endosperm. T-DNA insertion null mutants of this gene showed a white belly phenotype indicating an altered starch composition and content.
Publication Title
No associated publication
Sample Metadata Fields
Age, Specimen part
View Samples- Oryza sativa
- 10 Downloadable Samples
- Affymetrix Rice Genome Array (rice)
Description
Four days old rice calli were selected to grow 324h under spaceflight controls, 1g-flight controls and 1g-ground controls.
Publication Title
No associated publication
Sample Metadata Fields
Age, Treatment
View Samples- Oryza sativa
- 14 Downloadable Samples
- Affymetrix Rice Genome Array (rice)
Description
The receptor-like kinases (RLKs) plays critical roles in signal transduction through sensing the extracellular signals and activating the downstream signal transduction by phosphorylating their targets. Up to now, there are only a few RLKs have been functionally identified.
Publication Title
Global analysis of expression profiles of rice receptor-like kinase genes.
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 12 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Plant regeneration could be achieved via formation of a pluripotent cell mass termed callus, nature of which is a group of fast-dividing root primordium cells. However, mechanisms that strictly control the stem cell fate transition in regeneration of callus remain elusive. Here we show that the Arabidopsis ISWI type chromatin remodelers specifically promote the second-step cell fate transition from root founder cells to root primordium cells in the leaf-to-callus transition.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 6 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
The Arabidopsis thaliana Imitation Switch (AtISWI) subfamily of ATP-dependent chromatin remodeling factors play essential roles in plant development. Here we show that the DDT domain transcription factor RINGLET (RLT) form a complex with AtISWI. RLT1 physically interacts with CHR11 in yeast cells. Single mutants rlt1-1 and rlt2-1 show no obvious developmental defects, while the rlt1-1 rlt2-1 double mutant phenocopies the AtISWI mutant chr11-1 chr17-1. In addtion, the RLT-ISWI complex selectively represses SEPALLATA, FRUITFULL and SUPPRESSOR OF OVEREXPRESSION OF CO 1, but not AGAMOUS and PISTILLATA in leaves.
Publication Title
Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis.
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 6 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Chromatin remodeling factors of the Imitation Switch (ISWI) family play important roles in epigenetic regulations of gene expression in yeast and animals, whereas their function in plants remains elusive. Here we report characterization of the Arabidopsis ISWI genes CHR11 and CHR17. Double mutant chr11 chr17 displayed a dramatically reduced plant size with early flowering. In addition, epidermis of the double mutant leaves showed cell characteristics seen only in floral organs. These phenotypes resemble, at least partially, those of the Polycomb mutants curly leaf (clf) and like heterochromatin protein1 (lhp1). Microarray analysis revealed that a number of targets of the Polycomb pathway were derepressed in chr11 chr17 leaves. Furthermore, triple mutants combining chr11 chr17 with clf-29 or lhp1-6 both greatly enhanced clf-29 and lhp1-6 phenotypes, respectively. All these results strongly suggest that the ISWI family genes in Arabidopsis may function in gene silencing via the Polycomb pathway
Publication Title
Imitation Switch chromatin remodeling factors and their interacting RINGLET proteins act together in controlling the plant vegetative phase in Arabidopsis.
Sample Metadata Fields
Age, Specimen part
View Samples- Arabidopsis thaliana
- 6 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Callus formation is usually a necessary step in regenerating a new plant from detached plant tissues, and the nature of the callus is similar to that of the root meristem. In this study, we intended to address the molecular basis that directs different plant tissues to form the root-meristem-like callus. We found that leaves, but not roots, of the Polycomb group (PcG) double mutant curly leaf-50 swinger-1 lost the ability to form a callus. Using ChIP-chip analysis, we identified genes that are changed markedly in the histone H3 lysine 27 trimethylation (H3K27me3) levels during callus formation from leaf explants. Among these genes, a number of leaf-regulatory genes were repressed through PcG-mediated H3K27me3. Conversely, certain auxin pathway genes and many root-regulatory genes were derepressed through H3K27 demethylation. Our data indicate that genome-wide H3K27me3 reprogramming, through the PcG-mediated H3K27me3 and the H3K27 demethylation pathways, is critical in directing cell fate transition.
Publication Title
Reprogramming of H3K27me3 is critical for acquisition of pluripotency from cultured Arabidopsis tissues.
Sample Metadata Fields
Age, Specimen part
View Samples- Oryza sativa
- 26 Downloadable Samples
- Affymetrix Rice Genome Array (rice)
Description
Identification of factors regulating leaf inclination reveal a complex regulatory network of lamina joint development, however, the dynamic transcriptional programming of it remain to be elucidated.
Publication Title
Dynamic Cytology and Transcriptional Regulation of Rice Lamina Joint Development.
Sample Metadata Fields
Specimen part
View Samples- Oryza sativa
- 16 Downloadable Samples
- Affymetrix Rice Genome Array (rice)
Description
As a species mostly planted in tropical and subtropical regions, rice is sensitive to chilling temperature, especially at reproductive stage. However, the effect of low temperature on seed development has not been well characterized.
Publication Title
Genome-wide analysis of the complex transcriptional networks of rice developing seeds.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Oryza sativa
- 10 Downloadable Samples
- Affymetrix Rice Genome Array (rice)
Description
Expression profiles of protein coding genes were characterized using Affymetrix rice genome array to compare with expression profiles of miRNAs.
Publication Title
Characterization and expression profiles of miRNAs in rice seeds.
Sample Metadata Fields
No sample metadata fields
View Samples