GEO DataSets

(Submitter supplied) The effect of different loss of functions; kumgang (kmg or CG5204), dMi-2, and kmg and always early (aly) double on the gene expression in spermatocyte differentation was assessed by microarray. TITLE: Blocking promiscuous activation at cryptic promoters directs cell type–specific gene expression ABSTRACT: To selectively express cell type–specific transcripts during development, it is critical to maintain genes required for other lineages in a silent state. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL1322

17 Samples

Download data: CEL, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below. Abstract To selectively express cell type–specific transcripts during development, it is critical to maintain genes required for other lineages in a silent state. Here, we show in the Drosophila male germline stem cell lineage that a spermatocyte-specific zinc finger protein, Kumgang (Kmg), working with the chromatin remodeler dMi-2 prevents transcription of genes normally expressed only in somatic lineages. more...

Organism:

Drosophila melanogaster

Type:

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

Platforms:

GPL19132 GPL1322

52 Samples

Download data: BW, CEL

(Submitter supplied) Genome wide localization of Kumgang, dMi-2, and Aly in Drosophila melanogaster testes were evaluated by ChIP-Seq in wild-type and kmg knock down testes. / Title: Blocking promiscuous activation at cryptic promoters directs cell type–specific gene expression / Abstract: To selectively express cell type–specific transcripts during development, it is critical to maintain genes required for other lineages in a silent state. more...

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19132

26 Samples

Download data: BW

(Submitter supplied) The effect of different spermatocyte-specific loss of functions; kumgang (kmg or CG5204), dMi-2 in the gene expression in fly testes was assessed by RNA-Seq. Gene expression in wild-type heads were also measured to have a reference expression profile of 'somatic tissues'. / Title: Blocking promiscuous activation at cryptic promoters directs cell type–specific gene expression / Abstract: To selectively express cell type–specific transcripts during development, it is critical to maintain genes required for other lineages in a silent state. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19132

10 Samples

Download data: BW

(Submitter supplied) Transcriptional silencing of terminal differentiation genes by the Polycomb group (PcG) machinery is emerging as a key feature of precursor cells in stem cell lineages. How, then, is this epigenetic silencing reversed for proper cellular differentiation? Here we investigate how the developmental program reverses local PcG action to allow expression of terminal differentiation genes in the Drosophila male germline stem cell lineage. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL1322

12 Samples

Download data: CEL

(Submitter supplied) The Drosophila gene dany is expressed specifically in spermatocytes and encodes a nuclear protein with similarity to the products of the genes distal antenna (dan) and distal antenna-related (danr). Loss of dany function results in male sterility. Mutant spermatocytes fail to differentiate similar as previously observed in mutants lacking tTAF and tMAC function. Microarray analyses were performed to characterize the effects of loss of dany function on gene expression in testis and for a comparison of the effects with those caused by mutations in the tTAF gene spermatocyte arrest (sa) and the tMAC genes always early (aly) and matotopetli (topi)

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL17080

13 Samples

Download data: TXT

(Submitter supplied) Comr protein was found to be a major regulator of gene activity in drosophila spermatocytes. We obtained Comr binding profile to determine targets of Comr. Comr binding in drosophila male germ line cells was determined using DamID technique.

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by array

Platform:

GPL14914

2 Samples

Download data: PAIR

(Submitter supplied) To elucidate endogenous gene expression profiles in germ cells at discrete but continuous differentiation stages, we developed a new experimental strategy that we named Transcriptome Analysis using Single Germline Cyst (TASC).

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL9061 GPL17275

19 Samples

Download data: XLSX

(Submitter supplied) To investigate how the cell-type-specific gene expression program for spermatocyte differentiation turns on in male flies, we used RNA-seq to map transcript levels, CAGE to map transcription start sites (TSS), and ATAC-seq to map chromatin accessibility as proliferating spermatogonia transition to differentiating spermatocytes. Combining these data, we showed that the promoters that turn on when germ cells become spermatocytes lack most of the canonical core promoter motifs. more...

Organism:

Drosophila melanogaster

Type:

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

Platforms:

GPL19132 GPL21306

32 Samples

Download data: BED, BW, NARROWPEAK, TXT

(Submitter supplied) Gene expression is tightly linked to histone acetylation on lysine residues that can be recognized by bromodomains. The testis-specific bromodomain protein tBRD-1 is essential for male fertility and might act as a co-factor of testis-specifc TAFs. Here, we perform microarray analyses and demonstrate that tBRD-1 selectively controls gene expression in male germ cells

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL1322

10 Samples

Download data: CEL

(Submitter supplied) The Piwi-piRNA pathway is well known for its germline function, yet its somatic role remains elusive. We show here that Piwi is required autonomously not only for germline stem cell (GSC) but also for somatic cyst stem cell (CySC) maintenance in the Drosophila testis. Reducing Piwi activity in the testis caused defects in CySC differentiation. Accompanying this, GSC daughters expanded beyond the vicinity of the hub but failed to differentiate further. more...

Organism:

Drosophila melanogaster

Type:

Other

Platform:

GPL13304

1 Sample

Download data: TXT

(Submitter supplied) Here we used laser cutting microdissection and RNA amplification to profile the gene expression in wildtype female germaria and male apex of the testes. These tissue contain germline stem cells and early dividing germ cells. Our goal was to identify genes expressed in these cell types.

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL3880

4 Samples

Download data: GPR

(Submitter supplied) The expression of a very large number of genes changes as male germ cells pass through differentiation into spermatids and then sperm. Much of this transcriptional programme requires the activity of the meiotic arrest genes. We extracted RNA from wild type testes, as well as aly mutants and Nxt1 mutants, and used microarrays to compare gene expression profiles.

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL1322

9 Samples

Download data: CEL

(Submitter supplied) With the ChIP-seq experiment, we identified direct target genes of E(Pc) specifically in somatic gonadal cells. We found that the E(Pc)-binding genes are enriched with signaling pathway components, consistent with our functional data showing prevailing germline defects even when E(Pc) function is exclusively compromised in somatic gonadal cells. In addition, we also performed RNA-seq to compare transcriptomes between E(Pc) knockdown testes and control testes.

Organism:

Drosophila melanogaster

Type:

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

Platforms:

GPL16479 GPL17275

8 Samples

Download data: BEDGRAPH, TXT

(Submitter supplied) We use male gonads isolated from a Drosophila strain that allows us to obtain enough cells at their primitive status as the starting material to study the endogenous chromatin structure of undifferentiated cells using ChIP-seq. We integrate the ChIP-seq data with RNA-seq data that measures the transcriptome in a digital manner. Our genome-wide analyses indicate that the majority of differentiation genes in undifferentiated cells lack an active chromatin mark and paused Pol II; instead, they are associated with either the repressive H3K27me3 mark or no detectable mark. more...

Organism:

Drosophila melanogaster

Type:

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

Platform:

GPL9061

9 Samples

Download data: BED, BEDGRAPH, XLS

(Submitter supplied) Tissue homeostasis requires long-term lineage fidelity of somatic stem cells. Whether and how age-related changes in somatic stem cells impact the faithful execution of lineage decisions remains largely unknown. Here, we address this question using genome-wide chromatin accessibility and transcriptome analysis as well as single cell RNA-seq to explore stem cell-intrinsic changes in the aging Drosophila intestine. more...

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17275

8 Samples

Download data: BIGWIG, XLSX

(Submitter supplied) Male flies were crossed to virgins of genotype yw;esg-Gal4,UAS-GFP;tub-Gal80ts/Tm3,Sb. Progeny was collected and aged 3-4 days before shifting for 7 days to 29 degrees to induce RNAi expression. Guts were dissected for 2 biological replicates/condition, each containing 80-100 guts, dissociated and GFP-positive cells were FACS-sorted. RNA was isolated using the PicoPure RNA-isolation kit and libraries were generated. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13304

4 Samples

Download data: TSV

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

Organism:

Drosophila melanogaster

Type:

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

Platforms:

GPL13304 GPL21306 GPL17275

61 Samples

Download data: BIGWIG, TSV

(Submitter supplied) Tissue homeostasis requires long-term lineage fidelity of somatic stem cells. Whether and how age-related changes in somatic stem cells impact the faithful execution of lineage decisions remains largely unknown. Here, we address this question using genome-wide chromatin accessibility and transcriptome analysis as well as single cell RNA-seq to explore stem cell intrinsic changes in the aging Drosophila intestine. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17275

16 Samples

Download data: TSV

(Submitter supplied) Tissue homeostasis requires long-term lineage fidelity of somatic stem cells. Whether and how age-related changes in somatic stem cells impact the faithful execution of lineage decisions remains largely unknown. Here, we address this question using genome-wide chromatin accessibility and transcriptome analysis as well as single cell RNA-seq to explore stem cell intrinsic changes in the aging Drosophila intestine. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17275

6 Samples

Download data: TSV