GEO DataSets

(Submitter supplied) This experiment describes gene expression after the activation of APETALA1-GR, to study and identify AP1 target genes. We used a 35S:AP1-GR ap1 cal line to induce a synchronized response activating the AP1-GR fusion protein in ap1 cal inflorescence-like meristems through dexamethasone treatment. Tissue samples were collected immediately after the treatment, as well as subsequent timepoints. The expression profiles of the individual samples were then analyzed by gene expression profiling using whole-genome oligonucleotide arrays (non-commercial; Meyerowitz Lab Arabidopsis Operon Array v4). more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL9989

20 Samples

Download data: GPR, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platforms:

GPL9989 GPL9982

60 Samples

Download data: GPR, TXT

(Submitter supplied) This experiment describes gene expression after the activation of APETALA1-GR, to study and identify AP1 target genes. We used a 35S:AP1-GR ap1 cal line to induce a synchronized response activating the AP1-GR fusion protein in ap1 cal inflorescence-like meristems through dexamethasone treatment. Tissue samples were collected immediately after the treatment, as well as subsequent timepoints. The expression profiles of the individual samples were then analyzed by gene expression profiling using whole-genome oligonucleotide arrays (non-commercial; Meyerowitz Lab Arabidopsis Operon Array v4). more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL9989

20 Samples

Download data: GPR, TXT

(Submitter supplied) The MADS-domain transcription factor APETALA1 (AP1) is a key regulator of Arabidopsis flower development. To understand the molecular mechanisms underlying AP1 function, we identified its target genes during floral initiation using a combination of gene expression profiling and genome-wide binding studies. Many of its targets encode transcriptional regulators, including known floral repressors. The latter genes are down-regulated by AP1, suggesting that it initiates floral development by abrogating the inhibitory effects of these genes. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9062

4 Samples

Download data: SOA

(Submitter supplied) This experiment describes gene expression after the activation of APETALA1-GR, to study and identify AP1 target genes. We used a 35S:AP1-GR ap1 cal line to induce a synchronized response activating the AP1-GR fusion protein in ap1 cal inflorescence-like meristems through dexamethasone or dexamethasone+cycloheximide treatment. Tissue samples were collected at 3hrs after the treatment. The expression profiles of the individual samples were then analyzed by gene expression profiling using whole-genome oligonucleotide arrays (Agilent, custom-commercial).

Organism:

Arabidopsis thaliana

Type:

Genome variation profiling by SNP array

Platform:

GPL9984

16 Samples

Download data: TXT

(Submitter supplied) This experiment describes gene expression after the activation of APETALA1-GR, to study and identify AP1 target genes. We used a 35S:AP1-GR ap1 cal line to induce a synchronized response activating the AP1-GR fusion protein in ap1 cal inflorescence-like meristems through dexamethasone treatment. Tissue samples were collected immediately after the treatment, as well as subsequent timepoints. The expression profiles of the individual samples were then analyzed by gene expression profiling using whole-genome oligonucleotide arrays (Agilent, custom-commercial). more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL9982

20 Samples

Download data: TXT

(Submitter supplied) Comparion of gene expression profiles of wild-type and apetala1 inflorescences The gene expression profile of inflorescences of the floral homeotic mutant apetala1 was compared to wild-type inflorescences (Ler) using a whole-genome oligonucleotide array (Agilent, custom-commercial). Experiment was performed in triplicate.

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL9982

3 Samples

Download data: TXT

(Submitter supplied) The floral transition in Arabidopsis is tightly controlled by complex genetic regulatory networks in response to endogenous and environmental flowering signals. SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) and SHORT VEGETATIVE PHASE (SVP), two key MADS-domain transcription factors, perceive these signals and function as antagonistic flowering regulators. To understand how they mediate the floral transition, we mapped in vivo binding sites of SOC1 and SVP using chromatin immunoprecipitation followed by hybridization to whole-genome tiling arrays (ChIP-chip). more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL10977

12 Samples

Download data: BAR, BPMAP, CEL

(Submitter supplied) Callus derived from 35S:LFY-GR plants was treated with dexamethasone- or was mock-treated for 0,2,4,6,8,10,12, or 22 hours. Four biologically independent sets of samples were generated and RNA probes derived from these samples were co-hybridized to a cDNA array enriched for flower-specific transcripts. The data were analyzed with Rosetta Resolver as described in Wagner et al. (2004). Keywords: time-course

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL1069

32 Samples

Download data: GPR

(Submitter supplied) To understand the transcriptional program controlled by AGL24, we took advantage of a functional estradiol-inducible AGL24 expression system in combination with microarray analysis to identify AGL24 target genes. Keywords: inducible system

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

6 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL9062 GPL10977

9 Samples

Download data: BAR, CEL, TXT

(Submitter supplied) The molecular mechanisms by which floral homeotic genes act as major developmental switches to specify the identity of floral organs, are still largely unknown. Floral homeotic genes encode transcription factors of the MADS-box family, which are supposed to assemble in a combinatorial fashion into organ-specific multimeric protein complexes. Major mediators of protein interactions are MADS-domain proteins of the SEPALLATA subfamily, which play a crucial role in the development of all types of floral organs. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by array

Platform:

GPL10977

4 Samples

Download data: BAR, CEL

(Submitter supplied) The molecular mechanisms by which floral homeotic genes act as major developmental switches to specify the identity of floral organs, are still largely unknown. Floral homeotic genes encode transcription factors of the MADS-box family, which are supposed to assemble in a combinatorial fashion into organ-specific multimeric protein complexes. Major mediators of protein interactions are MADS-domain proteins of the SEPALLATA subfamily, which play a crucial role in the development of all types of floral organs. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9062

5 Samples

Download data: TXT

(Submitter supplied) Plants have evolved a unique and conserved developmental program that enables the conversion of leaves into floral organs. Elegant genetic and molecular work has identified key regulators of floral meristem identity. However, further understanding of flower meristem specification has been hampered by redundancy and by pleiotropic effects. The KNOXI gene STM transcription factor is a well-characterized regulator of shoot apical meristem maintenance. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19580

15 Samples

Download data: TXT

(Submitter supplied) This experiment describes gene expression after the activation of APETALA1-GR, to study and identify AP1 target genes. We used a pAP1:AP1-GR ap1 cal line to induce a synchronized response activating the AP1-GR fusion protein in ap1 cal inflorescence-like meristems through dexamethasone treatment. Tissue samples were collected immediately after the treatment, as well as subsequent timepoints. The expression profiles of the individual samples were then analyzed by gene expression profiling using whole-genome oligonucleotide arrays (Agilent, custom-commercial)

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL9984

12 Samples

Download data: TXT, XML

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL13222 GPL9302 GPL17970

16 Samples

Download data: TXT

(Submitter supplied) Development of eukaryotic organisms is controlled by transcription factors that trigger specific and global changes in gene expression programmes. In plants, MADS-domain transcription factors act as master regulators of developmental switches and organ specification. However, the mechanisms by which these factors dynamically regulate the expression of their target genes at different developmental stages are still poorly understood. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL17970 GPL9302

11 Samples

Download data: TXT

(Submitter supplied) Development of eukaryotic organisms is controlled by transcription factors that trigger specific and global changes in gene expression programmes. In plants, MADS-domain transcription factors act as master regulators of developmental switches and organ specification. However, the mechanisms by which these factors dynamically regulate the expression of their target genes at different developmental stages are still poorly understood. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13222

5 Samples

Download data: TXT

(Submitter supplied) Brassinosteroids (BRs) are important regulators for plant growth and development. BRs signal to control the activities of the BES1 and BZR1 family transcription factors. In order to further understand the mechanism by which BES1/BZR1 regulates downstream genes, we performed chromatin immunoprecipitation coupled with tiling arrays (ChIP-chip) to identify BES1 binding sites in the genome. By combining ChIP-chip data with gene expression microarray data, we are able to discover genes that are directly regulated by BES1 (i.e. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL10977

6 Samples

Download data: BAR, CEL, TXT

(Submitter supplied) SVP is a key MADS-box transcription factor for Arabidopsis development since it acts both during vegetative and reproductive phases where it plays different roles probably by interacting with different partners to regulate specific sets of target genes. In fact, whereas SVP functions as a repressor of floral transition during the vegetative phase, it works as floral meristem gene during reproductive phase. more...

Organism:

Arabidopsis thaliana

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9062

6 Samples

Download data: TXT