Single Cell RNA-Seq of the embryonic day 14.5 genital tubercle
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE175498 | GEO | 2021/05/26
REPOSITORIES: GEO
Similar Datasets
Project description:Single Cell RNA-Seq of the embryonic day 14.5 genital tubercle
| PRJNA732639 | ENA
Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing urogenital system. The central thesis is straightforward. The combination of microdissected and laser capture microdissection (LCM) plus Microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of the embryonic day 14 genital tubercle of the male and the female. The genital tubercle region from E14 (TS22) FVB/N males and females were microdissected and total RNA isolated for gene expression analysis using the Affymetrix MOE430 microarray chip.
2012-12-04 | E-GEOD-42688 | biostudies-arrayexpress
Project description:Despite the incredible morphological diversity found within vertebrates, embryonic development is often regulated by shared foundational mechanism maintained from a common ancestor. For instance, the tetrapod limb displays tremendous variation in size and shape but largely develops according to conserved gene regulatory networks, including signaling pathways, transcription factors, and enhancers. The phallus of amniotes is also thought to share a basic homology originating from their last common ancestor over 300 million years ago. The genital tubercle (GT) of mammals – the embryonic precursor to the penis and clitoris – shows similarities with the external genitalia of other amniotes prior to sexual differentiation. Many genes and enhancers show a common role in both the limbs and the external genitalia, and disruption of these loci can cause aberrant phenotypes in both structures. Among these shared limb-genital genes is Isl1. The Isl1 gene encodes a homeodomain transcription factor that is required for initiation of the hindlimb bud and for normal GT development. This study uses a combination of RNA-seq, ChIP-seq, and comparative genomics to identify potential targets of ISL1 during both hindlimb initiation and GT outgrowth. ChIP-seq data from mouse, chick, and other species reveals targets that are likely conserved from the last common ancestor of amniotes. A subset of ISL1 targets are shared between the hindlimb and the external genitalia, supporting the hypothesis that aspects of phallus development were coopted from the limb gene regulatory network. This systematic investigation of ISL1 transcriptional targets expands our knowledge of Isl1’s role in appendage development and generates further testable hypotheses concerning the establishment of these structures.
2025-04-04 | GSE202285 | GEO
Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing urogenital system. The central thesis is straightforward. The combination of microdissected and laser capture microdissection (LCM) plus Microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of the embryonic day 14 genital tubercle of the male and the female.
2012-12-04 | GSE42688 | GEO
Project description:The Drosophila genitalia develop from an imaginal disc that is patterned during the larval period and undergoes morphogenesis during the pupal period. Although the genetic hierarchy that controls sexual identity in Drosophila is well characterized, the downstream genes that effect sexually dimorphic development of the genitalia are largely unknown. We used microarrays to profile gene expression in female and male genital imaginal discs at three time points during development: late third-instar larvae (L3), pupae approximately 6 hours after puparium formation (P6) and pupae approximately 20 hours after puparium formation (P20). We identified genes that are sex-differentially expressed in the developing genital disc, including three genes encoding transcription factors that are expressed in the genital disc of one sex but not the other. Through genetic analysis, we showed how the master regulator of sexual identity, Doublesex, limits expression of each of these three genes to one sex. We also determined which genital structures fail to develop properly in the absence of each of the three genes.
2011-02-25 | GSE23344 | GEO
Project description:Downstream targets of Isl1 in the hindlimb field and genital tubercle
| PRJNA835341 | ENA
Project description:The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing urogenital system. The central thesis is straightforward. The combination of microdissected and laser capture microdissection (LCM) plus microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing urogenital system. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone. The data submitted here represents the gene expression profiles of the embryonic day 14 gential tubercle of the male. Experiment Overall Design: The genital tubercle region from an E14 (TS22) SMAA/EYFP males were microdissected and total RNA isolated for gene expression analysis using the Affymetrix MOE430 microarray chip.
2008-06-15 | E-GEOD-7903 | biostudies-arrayexpress
Project description:The Drosophila genitalia develop from an imaginal disc that is patterned during the larval period and undergoes morphogenesis during the pupal period. Although the genetic hierarchy that controls sexual identity in Drosophila is well characterized, the downstream genes that effect sexually dimorphic development of the genitalia are largely unknown. We used microarrays to profile gene expression in female and male genital imaginal discs at three time points during development: late third-instar larvae (L3), pupae approximately 6 hours after puparium formation (P6) and pupae approximately 20 hours after puparium formation (P20). We identified genes that are sex-differentially expressed in the developing genital disc, including three genes encoding transcription factors that are expressed in the genital disc of one sex but not the other. Through genetic analysis, we showed how the master regulator of sexual identity, Doublesex, limits expression of each of these three genes to one sex. We also determined which genital structures fail to develop properly in the absence of each of the three genes. Drosophila female or male genital discs were dissected at the L3, P6 or P20 time points, total RNA was extracted, and labeled cDNA was produced for hybridization to Affymetrix microarrays. To aid in identifying genital discs, and thereby to avoid loss or contamination of tissue, we used animals expressing GFP in all imaginal discs (esgGAL4.B, UAS-GFP.nls/CyO). To collect discs of specific developmental ages, short-duration sex-nonspecific morphological features were used. L3 discs were dissected from wandering third-instar larvae and sexed by gonad size. For the two pupal time points, each sex-sorted larva was observed until it reached the white prepupa stage (0 hours after puparium formation, APF), which lasts 15-20 minutes. This short duration improves synchronization of the following stages. An air bubble forms mid-dorsally on the puparium at around 4 hours APF, peaks in size at 6-6.5 hours APF and disappears at 9-11 hours APF. We therefore used this morphological feature to collect P6 samples, rather than merely timing 6 hours since the white prepupa. Each animal was observed every 20 minutes from 5 hours APF, until peak bubble size was evident, at which time its genital disc was dissected. We followed a similar protocol for P20. We noted that GFP expression in an oval patch in the eye disc becomes faintly visible at around 20 hours APF. We observed each pupa every 20 minutes from 18 hours APF, until GFP appeared in the eye, at which time its genital disc was dissected. Morphologies of P6 and P20 discs collected this way showed little within-sex variation. For each combination of sex and time point, four biological replicates were performed.
2011-02-25 | E-GEOD-23344 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE3871: Effects of androgen treatment on genital fibroblasts GSE3872: Baseline gene transcription in genital fibroblasts Abstract: BACKGROUND: Androgen insensitivity syndrome (AIS) comprises a range of phenotypes from male infertility to complete feminization. Most individuals with AIS carry germline mutations of the androgen receptor (AR) that interfere with or ablate its function. As genital fibroblasts retain expression of the AR in vitro, we used genital skin fibroblasts from normal males and 46,XY females with complete AIS due to known AR mutations to gain insights into the role of the AR in human genital differentiation. RESULTS: Using DNA microarrays representing 32,968 different genes, we identified 404 transcripts with significant differences in transcription levels between genital skin fibroblasts cultured from normal and AIS-affected individuals. Gene-cluster analyses uncovered coordinated expression of genes involved in key processes of morphogenesis. On the basis of animal studies and human genetic syndromes, several of these genes are known to have specific roles in genital differentiation. Remarkably, genital fibroblasts from both normal and AIS-affected individuals showed no transcriptional response to dihydrotestosterone treatment despite expression of the AR. CONCLUSIONS: The results suggest that in addition to differences in the anatomic origin of the cells, androgen signaling during prenatal development contributes to setting long-lasting, androgen-independent transcriptional programs in genital fibroblasts. Our findings have broad implications in understanding the establishment and the stability of sexual dimorphism in human genital development. Refer to individual Series
2006-03-06 | E-GEOD-4353 | biostudies-arrayexpress
Project description:Abstract: BACKGROUND: Androgen insensitivity syndrome (AIS) comprises a range of phenotypes from male infertility to complete feminization. Most individuals with AIS carry germline mutations of the androgen receptor (AR) that interfere with or ablate its function. As genital fibroblasts retain expression of the AR in vitro, we used genital skin fibroblasts from normal males and 46,XY females with complete AIS due to known AR mutations to gain insights into the role of the AR in human genital differentiation. RESULTS: Using DNA microarrays representing 32,968 different genes, we identified 404 transcripts with significant differences in transcription levels between genital skin fibroblasts cultured from normal and AIS-affected individuals. Gene-cluster analyses uncovered coordinated expression of genes involved in key processes of morphogenesis. On the basis of animal studies and human genetic syndromes, several of these genes are known to have specific roles in genital differentiation. Remarkably, genital fibroblasts from both normal and AIS-affected individuals showed no transcriptional response to dihydrotestosterone treatment despite expression of the AR. CONCLUSIONS: The results suggest that in addition to differences in the anatomic origin of the cells, androgen signaling during prenatal development contributes to setting long-lasting, androgen-independent transcriptional programs in genital fibroblasts. Our findings have broad implications in understanding the establishment and the stability of sexual dimorphism in human genital development. This SuperSeries is composed of the SubSeries listed below.
2006-03-07 | GSE4353 | GEO