Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Global expression profiling in dpa4 mutant apices compared to wild type

ABSTRACT: Experiment to detect differentially expressed genes in mutants of the predicted transcription factor DPA4 (At5g06250)

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Julia Engelhorn

PROVIDER: E-TABM-1195 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Development-related PcG target in the apex 4 controls leaf margin architecture in Arabidopsis thaliana.

Engelhorn Julia J Reimer Julia J JJ Leuz Iris I Göbel Ulrike U Huettel Bruno B Farrona Sara S Turck Franziska F

Development (Cambridge, England) 20120606 14

In a reverse genetics screen based on a group of genes enriched for development-related Polycomb group targets in the apex (DPAs), we isolated DPA4 as a novel regulator of leaf margin shape. T-DNA insertion lines in the DPA4 locus display enhanced leaf margin serrations and enlarged petals, whereas overexpression of DPA4 results in smooth margins. DPA4 encodes a putative RAV (Related to ABI3/VP1) transcriptional repressor and is expressed in the lateral organ boundary region and in the sinus of ...[more]

PMID: 22675210

Similar Datasets

Integrated expression profiles of mRNA and miRNA in polarized primary murine microglia (mRNA)

Project description:The aim of this study was to determine the role that miRNAs have on influencing murine microgial phenotypes under M1(LPS) and M2a (IL-4) stimulating conditions. This Series includes expression data obtained from mRNA gene expression microarrays; miRNA expression profiles obtained from the same RNA samples were deposited as a separate Series. 9 total samples were analyzed, n=3 for the three stimulating conditions (resting state, LPS and IL-4) for murine primary microglia. This allowed us to perform the following pairwise comparisons: PBS vs. LPS, and PBS vs. IL-4. This was performed for both mRNA and miRNA gene expression profiles.

2014-03-13 | E-GEOD-49329 | biostudies-arrayexpress

Integrated expression profiles of mRNA and miRNA in polarized primary murine microglia

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-03-13 | E-GEOD-49331 | biostudies-arrayexpress

Effect of embryo in vitro culture on mESC transcriptome.

Project description:Transcriptome analysis of mouse embryonic stem cell lines derived from embryos cultured in optimal and suboptimal conditions compared to cell lines derived from control embryos. The use of assisted reproductive technologies (ART) such as in vitro fertilization (IVF) has resulted in the birth of more than 5 million children. While children conceived by these technologies are generally healthy, there is conflicting evidence suggesting an increase in adult-onset complications like glucose intolerance and high blood pressure in IVF children. Animal models indicate similar potential risks. It remains unclear what molecular mechanisms may be operating during in vitro culture to predispose the embryo to these diseases. One of the limitations faced by investigators is the paucity of the material in the preimplantation embryo to test for molecular analysis. To address this problem, we generated mouse embryonic stem cells (mESC) from blastocysts conceived after natural mating (mESCFB) or after IVF, using optimal (KSOM + 5% O2; mESCKAA) and suboptimal (Whitten’s Medium, + 20% O2, mESCWM) conditions. We analyzed three female cell lines per group for a total of nine mouse embryonic stem cells on Affymetrix MoGene 1.0 ST Arrays.

2015-03-31 | E-GEOD-63821 | biostudies-arrayexpress

Dermal lymphatic endothelial cell response to type 2 diabetes [Homo sapiens]

Project description:Analysis of ex vivo isolated lymphatic endothelial cells from the dermis of patients to define type 2 diabetes-induced changes. Results preveal aberrant dermal lymphangiogenesis and provide insight into its role in the pathogenesis of persistent skin inflammation in type 2 diabetes. The ex vivo dLEC transcriptome reveals a dramatic influence of the T2D environment on multiple molecular and cellular processes, mirroring the phenotypic changes seen in T2D affected skin. The positively and negatively correlated dLEC transcripts directly cohere to prolonged inflammatory periods and reduced infectious resistance of patientsÂ´ skin. Further, lymphatic vessels might be involved in tissue remodeling processes during T2D induced skin alterations associated with impaired wound healing and altered dermal architecture. Hence, dermal lymphatic vessels might be directly associated with T2D disease promotion. Global gene expression profile of normal dermal lymphatic endothelial cells (ndLECs) compared to dermal lymphatic endothelial cells derived from type 2 diabetic patients (dLECs).Quadruplicate biological samples were analyzed from human lymphatic endothelial cells (4 x diabetic; 4 x non-diabetic). subsets: 1 disease state set (dLECs), 1 control set (ndLECs)

2012-06-01 | E-GEOD-38396 | biostudies-arrayexpress

Comparison of histone deacetylase 9-1 mutant (SALK_001723) dry seed transcriptome with Col wild-type

Project description:Analysis of the transcriptome of dry hda9-1 mutant seeds with those of Col wild-type seeds, using Affymetrix GeneChip Arabidopsis ATH1 Genome Array. The hda9-1 mutant has reduced primary seed dormancy. We used microarrays to dissect which genes are differentially expressed in the hda9-1 mutant to study the mechanisms how HDA9 affects seed dormancy and germination RNA was extracted from tagged dry 18-19-DAP siliques of wild-type Col and the hda9-1 mutant following an adapted protocol of the RNAqueous small scale Phenol-free total RNA isolation kit in addition with RNA isolation aid (Ambion, Austing, TX, USA), as described in Liu et al. (2011) PLoS ONE and Van Zanten et al. (2011) PNAS. Affymetrix GeneChip Arabidopsis ATH1 Genome-Micro hybridization was performed at the Max Planck Genome Centre Cologne. Three independent hybridizations of independent biological replicates, obtained from several dry siliques of at least five plants per replica, were performed.

2014-09-21 | E-GEOD-50786 | biostudies-arrayexpress

Small hydrophobic protein of human metapneumovirus does not affect virus replication and host gene expression in vitro

Project description:In vitro infection experiment with genetically modified human metapneumovirus (HMPV) to study the function of the viral small hydrophobic (SH) protein.

2014-11-23 | E-MTAB-1152 | biostudies-arrayexpress

Identification of molecular factors explaining decreased hypocotyl growth at low temperature

Project description:affy_hypoctemp_medicago - The characterization of several genotypes of the model Legume Medicago truncatula showed a genetic variability for germination and hypocotyl heterotrophic growth at low temperature and optimal temperature. The most important contrast was between the accessions Jemalong A17 and F83005.5. In order to find genes differently expressed between temperatures and genotypes, the present work focuses on transcriptome profiling during hypocotyl heterotrophic growth under low (10°C) and optimal (20°C) temperature conditions for both genotypes. We used Jemalong A17 and F83005.5 seeds coming from the Medicago truncatula Biological Resource Center in Montpellier, produced in 2006. Experiments were performed in the dark to mimic pre-emergence growth. Pots (6.5 cm diameter, 10 cm high) were incubated in growth chambers either at 10°C or 20°C. They were filled with 500g sand and 100ml of a nutrient solution for young seedlings growth (Saglio and Pradet, 1980). Per pot, five scarified seeds were sown at 1.5 cm depth. Seedlings were harvested at three times: 35°Cd (degree day), 50°Cd and 100°Cd. At each timepoint, about 50 seedlings were harvested and hypocotyl lengths was measured. Hypocotyl were cut and immediately frozen in liquid nitrogen for RNA extractions. Time course of 24 arrays - Medicago

2010-09-10 | E-GEOD-18449 | biostudies-arrayexpress

Longâterm engraftment of primary bone marrow stroma promotes hematopoietic reconstitution after transplantation

Project description:Restoration of hematopoiesis upon bone marrow (BM) transplantation relies on the engraftment, expansion and function of transplanted hematopoietic stem cells (HSC). However, the number of donorâderived HSC typically remain much below that present in normal individuals and this likely limits and delays hematopoietic recovery. HSC depend on supportive stromal niches, however, whether the preâconditioning required for BM transplantation damages this stromal niche has not been evaluated extensively. Using mouse models, we now find that that BM stroma cells (BMSC) are severely and permanently damaged by preâconditioning. Transplantation of primary but not cultured BMSC quantitatively reconstitutes stroma function in vivo, which is mediated by a multipotent CD73+ CD105â Sca1+ BMSC subpopulation. BMSC coâtransplantation significantly ameliorates clinical side effects of BM transplantation and doubles expansion of functional, donorâ derived HSC, demonstrating the potential of stroma transplantation to improve HSC transplantation. Purified CD45âTer119âCD73+ CD105â and CD45âTer119âCD73+ CD105+ cells were directly sorted on lysis buffer with FACS Aria 2 in triplicate.

2016-09-01 | E-GEOD-79091 | biostudies-arrayexpress

Identification of Unique Therapeutic Targets in Esophageal Squamous Cell Carcinoma

Project description:We utilized tissue microdissection and expression microarrays to measure ex vivo gene expression profiles in twelve cases of patient-matched normal basal epithelial cells, normal differentiated squamous epithelium, and cancer. The data set from the precisely-dissected, dividing basal cell layer was used as a ‘biological filter’ to identify genes that were specifically dysregulated in tumors, and not simply increased as a consequence of normal growth.

2011-05-03 | E-GEOD-29001 | biostudies-arrayexpress

Three-Dimensional Tumor Profiling Reveals Minimal mRNA Heterogeneity in Esophageal Squamous Cell Carcinoma

Project description:We microdissected discrete sub-regions of esophageal squamous cell carcinoma (ESCC) and analyzed the transcriptomes throughout three-dimensional (3D) tumor space. Nine cases were used for TP/TC comparison, five cases were used for 3D analysis, one normal case was set as a control.

2011-11-04 | E-GEOD-33426 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data