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Digit patterning is controlled by a Bmp-Sox9-Wnt Turing network modulated by morphogen gradients

ABSTRACT: The goal of this microarray analysis was to see which genes are differentially expressed between Sox9-EGFP positive cells and Sox9-EGFP negative cells in E11.5 mouse limb bud autopods of the reporter Sox9-EGFP knock-in mouse(Nakamura et al 2011). This was done in order to gain insight of the genes that could contribute to the specification of the digits (Sox9 positive cells).

ORGANISM(S): Mus musculus

PROVIDER: GSE58158 | GEO | 2014/06/15

SECONDARY ACCESSION(S): PRJNA251405

REPOSITORIES: GEO

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Digit patterning is controlled by a Bmp-Sox9-Wnt Turing network modulated by morphogen gradients

Project description:The goal of this microarray analysis was to see which genes are differentially expressed between Sox9-EGFP positive cells and Sox9-EGFP negative cells in E11.5 mouse limb bud autopods of the reporter Sox9-EGFP knock-in mouse(Nakamura et al 2011). This was done in order to gain insight of the genes that could contribute to the specification of the digits (Sox9 positive cells). Mesenchymal cells were extracted from the mouse (Sox9EGFP knock-in, Nakamura et al . 2011) embryo forelimb autopod at stage E11.5. Sox9EGFP-positive cells were FACS-sorted from Sox9EGFP-negative cells . Each FACS-sorted sample was made from several forelimb autopods (approximately n=10). Three replicates were used for each group of Sox9EGFP-positive cells and Sox9EGFP-negative cells. Extraction of total RNA, labeling and hybridization to the microarray were performed using attached protocols. We identified the genes that were differentially expressed between the two groups.

2014-06-15 | E-GEOD-58158 | biostudies-arrayexpress

Digital gene expression tag profiling of digit morphologies in bats

Project description:As the only truly flying mammals, bats use their unique wing formed from elongated digits connected by membranes to power their flight. The forelimb of bats consists of four elongated digits (digits II-V) and one shorter digit (digit I) that is morphologically similar to the hindlimb digits. Elongation of bat forelimb digits is thought to results from changes in the temporal and spatial expression of a number of developmental genes. As a result, comparing gene expression profiles between short and elongated digit morphologies of the fore- and hindlimbs may elucidate the molecular mechanisms underlying digit elongation in bats. Here, we performed a large-scale analysis of gene expression of forelimb digit I, forelimb digits II-V, and all five hindlimb digits in Myotis ricketti using digital gene expression tag profiling approach. Results of this study not only implicate several developmental genes as robust candidates underlying digit elongation in bats, but also provide a better understanding of the genes involved in autopodial development in general. A large-scale analysis of gene expression of 3 different parts of autopods in Myotis ricketti using digital gene expression tag profiling approach.

2010-12-06 | E-GEOD-20038 | biostudies-arrayexpress

Profiling of Sox9-related genes in chondrogenesis using Sox9-3'EGFP knock-in and Sox9-EGFP/EGFP null chimeric mouse embryos

Project description:To define the repertoire of Sox9-dependent genes that contribute to the regulation of chondrogenesis, we generated Sox9-3'enhanced green fluorescent protein (EGFP) knock-in mice (Sox9-3'EGFP) and Sox9-EGFP/EGFP null chimeras. EGFP-positive cells of Sox9-3'EGFP knock-in and Sox9-EGFP/EGFP null chimeric embryos harvested from limb buds at embryonic day 12.5 were sorted using a FACSAria flow cytometer (Becton-Dickinson). Total RNA of sorted cells was extracted using the RNeasy Mini Kit (QIAGEN) and amplified according to the instructions provided by Affymetrix. Microarray analysis using the Affymetrix Mouse Genome 430 2.0 Array was performed according to the manufacturer's instructions.

2011-02-16 | E-MTAB-537 | biostudies-arrayexpress

Cell competition corrects noisy Wnt morphogen gradients to achieve robust patterning in the zebrafish embryo.

Project description: Not available

| S-EPMC6797755 | biostudies-literature

Digital gene expression tag profiling of digit morphologies in bats

2010-12-06 | GSE20038 | GEO

Digital gene expression tag profiling of digit morphologies in bats

2010-12-06 | GSE20038 | GEO

Transcriptome comparison of bat (Miniopterus natalensis) forelimb and hindlimb autopods at developmental stages CS16 and CS17 and E13.5 mouse forelimb autopods

Project description:The bat offers an alternative paradigm to the standard mouse and chick model of limb development as it has extremely divergent forelimbs (long digits supporting a wing) and hindlimbs (short digits and claws) due the distinct requirements of both aerial and terrestrial locomotion. We used a cross-species microarray approach to identify differentially expressed (DE) genes between the bat (Minniopterus natalensis) forelimb and hindlimb autopods at Carollia developmental stages (CS) 16 and CS17, and between the bat (CS17) and mouse (E13.5) forelimb autopods. Several DE genes were identified, including two homeobox genes, Meis2, a proximal limb-patterning gene, and Hoxd11, a gene involved in digit elongation. Both genes are significantly over-expressed in the developing bat forelimb as compared to the hindlimb and equivalently staged mouse forelimbs.

2014-02-15 | GSE51042 | GEO

Differential expression of keratin genes in regenerating digit of C57Bl/6 versus MRL/MpJ mice

Project description:Expression of genes encoding multiple keratin- and keratin-associated proteins varies between C57BL/6 and MRL/MpJ (superhealer) mice following digit amputation. We characterized changes in gene expression by microarray analysis of regenerating digits in these mice at various timepoints following surgical amputation. These changes were validated by quantitative rtPCR analyses. In this dataset, we include the expression data obtained from regenerating mouse digits following surgical amputation as well unamputated digits (total 24 samples). These data are used to obtain genes that are differentially expressed between the two groups of digits.

2013-07-01 | E-GEOD-26227 | biostudies-arrayexpress

Local kinetics of morphogen gradients.

Project description: Not available

| S-EPMC3076853 | biostudies-other

Expression data of Sox9+ and Ngn3+ mouse pancreas cells at different stages of development

Project description:Genes specific to Sox9+ pancreatic progenitors were identified by comparing the gene expression in embryonic and adult Sox9+ cells. We used microarray analysis to detail the global changes in gene expression as Sox9 positive embryonic pancreatic progenitors differentiatiate into adult ductal cells or the endocrine lineage. GFP positive cells from Sox9-EGFP mouse pancreas were isolated by FACS at different stages of development (e10.5, e15.5, and p23) for RNA extraction and hybridization to Affymetrix microarrays. To obtain populations highly enriched in Sox9 expression, we collected only GFP Hi populations for analysis. To identify gene expression changes specific to the differentiation of progenitors to ductal cells or endocrine cells, we also isolated and analyzed the gene expression profile of GFP negative cells isolated at p23, as well as GFP positive cells isolated from Ngn3-EGFP mouse pancreas at e15.5. These two populations allow the identification of genes whose expression is associated with the newly differentiated endocrine progeny in the embryo (Ngn3-GFP positive) and adult acinar and endocrine cells at p23.

2012-08-01 | E-GEOD-34060 | biostudies-arrayexpress

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