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Transcription targets of ASYMMETRIC LEAVES 2 (AS2), KANADI1 (KAN), REVOLUTA (REV) and SHOOT MERISTEMLESS (STM) genes

ABSTRACT: Dexamethasone applied to WT, GR-AS2, GR-KAN1, GR-REV and GR-STM seedlings and expression measured at 0, 30, 60 and 120 minutes after Dex application. SRA Series SRP051213 BioProject PRJNA258547. All reps are bio reps. Expression values are geometric normalized FPKM values from Tophat/Cufflinks reads and mappings.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Samuel Hokin

PROVIDER: E-GEOD-70796 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcription targets of ASYMMETRIC LEAVES 2 (AS2), KANADI1 (KAN), REVOLUTA (REV) and SHOOT MERISTEMLESS (STM) genes

Project description:Dexamethasone applied to WT, GR-AS2, GR-KAN1, GR-REV and GR-STM seedlings and expression measured at 0, 30, 60 and 120 minutes after Dex application.

2016-07-01 | GSE70796 | GEO

Identification of mRNAs Regulated in Response to Transcriptional Activation of the Arabidopsis Abscisic Acid Insensitive Growth 1 (AIG1) Transcription Factor cDNA

Project description:Liquid grown, seven day old wild type Arabidopsis seedlings and seedlings carrying a cDNA encoding the Abscisic Acid Insensitive Growth (AIG1) gene under the control of an estrogen inducible promoter were treated with estrogen for 0, 60 and 120 minutes at which point seedlings were flash frozen and mRNA was extracted. Wild-type and ESTAIG1 Col samples were treated with estrogen and flash frozen 0, 60 and 120 minutes later. Each sample type has three biological reps, except ESTHAT22.120, which has two. There are therefore 17 total samples. mRNA samples were sequenced by Otogenetics and then analyzed using the Tuxedo suite of applications.

2016-06-22 | E-GEOD-70100 | biostudies-arrayexpress

Transcription profiling by array of Arabidopsis thaliana shoots treated with either DEX or CHX to identify STM-regulated target genes

Project description:Global expression of the Arabidopsis transcriptional regulator SHOOT MERISTEMLESS (STM) in a 35S:STM-GR transgenic line was induced for 3 hours with dexamethasone (DEX) compared to mock-induced (DMSO) control. Additionally,to identify direct targets, plants were treated with the protein synthesis inhibitor cycloheximide (CHX) together with DEX, compared to CHX treatment alone.

2018-05-29 | E-MTAB-6786 | biostudies-arrayexpress

Transcriptome analysis of genes regulated by CUP-SHAPED COTYLEDON1 (CUC1) transcription factor in Arabidopsis thaliana

Project description:Samples 1 & 2: Comparison of gene expression between wild type (ecotype Ler) and 35S:CUC1, in which CUP-SHAPED COTYLEDON1, a master regulator of the shoot meristem and boundary establishment, is constitutively expressed under the cauliflower mosaic virus 35S promoter. Samples 3 & 4: Comparison of gene expression between stm-1 (ecotype Ler) and stm-1 35S:CUC1 RNA was isolated from cotyledons of 5-day-old (for Ler vs 35S:CUC1) or 10-day-old (for stm vs 35S:CUC1stm) seedlings. Two independent biological replicates were analyzed for each comparison.

2011-03-30 | E-GEOD-27482 | biostudies-arrayexpress

Expression data from VND7 induction line

Project description:Plants typically contain two different types of cell walls: a primary wall that is being deposited around all growing cells, and a secondary wall that is produced in cells with specialized functions once they have ceased to grow. In Arabidopsis, VND7 is a transcription factor that is sufficient to activate secondary cell wall synthesis. To artificially turn on the secondary cell wall synthesis, VND7 was fused to the activation domain of the herpes virus VP16 protein and the glucocorticoid receptor (GR) domain. Thus, the transgenic plants harbouring the constructs can then be treated with dexamethasone (DEX), a glucocorticoid derivative, to induce the secondary cell wall formation. We used microarrays to investigate the global program of gene expression during the secondary cell wall development and identified up- and down-regulated genes associated with this process. Cultures were harvested at indicated time points after induction (1, 3, 6, 9, 12, 24, 30, 48 h) and at time point zero (0). Uninduced cultures (DMSO instead of DEX) served as controls for each time point, and thus, 48 microarray analyses for 8 time points (3 biological reps) for +/- induced VND7-VP16-GR cultures, and 3 arrays for time 0h. To ensure that the DEX did not influence the measurements, an empty vector construct (EV), i.e., without the VND7 gene, VP16-GR, was used at three time points, i.e., VP16-GR +/- DEX at 9h, 12h, and 24h after DEX induction.

2016-02-22 | E-GEOD-77153 | biostudies-arrayexpress

Analysis of genes regulated by AS1 and AS2

Project description:AS1 and AS2 encode MYB related protein and AS2-domain containing protein, respectively and may regulate transcription. These genes are involved in the determination of axes of leaves of Arabidopsis thaliana. To know the gene regulation in the leaf development, expression profile among wild-type, as1 and as2 mutants and AS2 overexpression plants were compaired. shoot apices from as1-1, as2-1, AS2 overexpressing, and wild type embryos

2013-03-01 | E-GEOD-44028 | biostudies-arrayexpress

Transcription profiling of soybean cotyledon to cotyledon to ioleosin transgenic

Project description:3 samples, 2 reps each. comparison of wildtype cotyledon to RNAioleosin transgenic Experiment Overall Design: 2 biological replicates of transgenics, 2 technical replicates each

2008-10-25 | E-GEOD-12300 | biostudies-arrayexpress

Analysis of genes regulated by AS2 and TOP1

Project description:AS2 encode AS2-domain containing protein and may regulate transcription. AS2 is involved in the determination of axes of leaves of Arabidopsis thaliana. Type IB DNA topoisomerase (TOP1α) gene has genetic interaction with AS1 and AS2 and is involved in repression of leaf polarity genes. To know the gene regulation in the leaf development, expression profile among wild-type and as2 mutant treated with and without 10-hydroxyl substituted camptothecin (10H-CPT), a specific TOP1 inhibitor, were compared

2022-12-21 | GSE125138 | GEO

Analysis of genes regulated by AS1 and AS2

2013-03-01 | GSE44028 | GEO

The KNOXI gene SHOOT MERISTEMLESS regulates floral fate in Arabidopsis

Project description: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. stm loss-of-function mutants arrest shortly after germination, and therefore the knowledge on later roles of STM, including flower development, is limited. Here, we uncover a role for STM in the specification of flower meristem identity. Silencing STM in the AP1 expression domain in the ap1-4 mutant background resulted in a complete leafy-like flower phenotype and an intermediate stm-2 allele enhanced the floral meristem identity phenotype of ap1-4. Transcriptional profiling of STM perturbation suggested that STM activity affects multiple meristem identity and flower transition genes, among them the F-Box gene UFO. In agreement, stm-2 enhanced the ufo-2 floral meristem fate phenotype, and ectopic UFO expression rescued the leafy flowers in genetic backgrounds with compromised AP1 and STM activities. This work suggests a molecular mechanism that underlies the activity of STM in the specification of flower meristem identity.

2018-05-04 | GSE113894 | GEO

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