GEO DataSets

Analysis of four spermatic subpopulations: type A and type B spermatogonia, pachytene spermatocytes, and round spermatids. The X and Y chromosomes are subject to meiotic sex chromosome inactivation in the mammalian male germline. Results provide insight into the extent of postmeiotic X silencing.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 4 cell type sets

Platform:

GPL1261

Series:

GSE4193

8 Samples

Download data: CEL

(Submitter supplied) In mammals, the X and Y chromosomes are subject to meiotic sex chromosome inactivation (MSCI) during prophase I in the male germline, but their status thereafter is currently unclear. An abundance of X-linked spermatogenesis genes has spawned the view that the X must be active [1-8]. On the other hand, the idea that the imprinted paternal X of the early embryo may be pre-inactivated by MSCI suggests that silencing may persist longer [9-12]. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS2390

Platform:

GPL1261

8 Samples

Download data: CEL

(Submitter supplied) Expression profiling of isolated populations of prepachytene spermatocytes, pachytene spermatocytes and spermatids of males carrying a translocation T(16;17)43H was performed to study the influence of this translocation on gene expression from individual chromosomes. To evaluate the transcriptional behavior of individual chromosomes in the sterile B10-T43/+ males and their fertile congenic B10-T43/T43 and B10 counterparts, we compared their transcriptomes in sorted populations of pre-pachytene primary spermatocytes, pachytene primary spermatocytes and spermatids. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL5008

18 Samples

Download data: CEL

(Submitter supplied) To investigate the genomic distribution of genes with sex- biased expression patterns in mice we analyzed the chromosomal distribution of genes preferentially expressed in sexually dimorphic tissues such as testis and ovary. Keywords: repeat sample

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL977

21 Samples

Download data

(Submitter supplied) Background: The ubiquitin-conjugating enzyme HR6B is required for spermatogenesis in mouse. Loss of HR6B results in aberrant histone modification patterns on the trancriptionally silenced X and Y chromosomes (XY body) and on centromeric chromatin in meiotic prophase. We studied the relationship between these chromatin modifications and their effects on global gene expression patterns, in spermatocytes and spermatids. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

8 Samples

Download data: CEL

(Submitter supplied) Comparison of gene expression differences between Dnmt3L heterozygous and wildtype pachytene spermatocytes, and similarly between Dnmt3L heterozygous and wildtype round spermatids which were isolated from the Dnmt3L knockout mouse line. This array was conducted to address the hypothesis that Dnmt3L heterozygosity results in deregulated gene expression within spermatocytes and spermatids. Results show that Dnmt3L heterozygosity causes numerous genes to be differentially regulated on a genome-wide level, showing that DNMT3L has an important role in regulating gene expression within these male germ cells.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6481

11 Samples

Download data: TXT

(Submitter supplied) Germ cells manifest a unique gene expression program and regain totipotency in the zygote. Here, we perform Hi-C analysis to examine 3D chromatin organization in male germ cells during spermatogenesis. We show that the highly compartmentalized 3D chromatin organization characteristic of interphase nuclei is attenuated in meiotic prophase. Meiotic prophase is predominated by short-range intrachromosomal interactions that represent a condensed form akin to that of mitotic chromosomes. more...

Organism:

Mus musculus

Type:

Other; Third-party reanalysis

Platforms:

GPL17021 GPL21103

5 Samples

Download data: COOL, TXT

(Submitter supplied) Ubiquitylation of histones provides an important mechanism regulating chromatin remodeling and gene expression. Recent studies have revealed ubiquitin ligases involved in histone ubiquitylation, yet the responsible enzymes and the function of histone ubiquitination in spermatogenesis remain unclear. Here we show that the ubiquitin ligase UBR2, one of the recognition E3 components of the N-end rule proteolytic pathway, localizes to meiotic chromatin regions, including unsynapsed axial elements linked to chromatin inactivation, and mediates, in combination with the ubiquitin-conjugating enzyme HR6B, the ubiquitination of histone H2A. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL8321

2 Samples

Download data: CEL

(Submitter supplied) The Y-encoded multicopy gene Sly has been shown to repress X and Y genes in spermatids, among which are its X-linked homologs Slx and Slxl1, via modulation of post-meiotic sex chromain (PMSC). In this experiment, we compared expression in spermatids from mice that are deficient for Sly (shSLY), for Slx/Slxl1 (shSLX1) or both (shSLX1shSLY). We observed that Slx/Slxl1 has an opposite role to that of Sly, and stimulates expression of X and Y genes in spermatids when Sly is absent. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

13 Samples

Download data: TXT

(Submitter supplied) The male germline transcriptome changes dramatically during the mitosis-to-meiosis transition to activate late spermatogenesis genes and to transiently suppress genes commonly expressed in somatic lineages and spermatogenesis progenitor cells, termed somatic/progenitor genes. These changes reflect epigenetic regulation. Induction of late spermatogenesis genes during spermatogenesis is facilitated by poised chromatin established in the stem cell phases of spermatogonia, whereas silencing of somatic/progenitor genes during meiosis and postmeiosis is associated with formation of bivalent domains which also allows the recovery of the somatic/progenitor program after fertilization. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17021

29 Samples

Download data: BED

(Submitter supplied) Gametogenesis is dependent on the expression of germline-specific genes. However, it remains unknown how the germline epigenome is distinctly established from that of somatic lineages. Here we show that genes commonly expressed in somatic lineages and spermatogenesis-progenitor cells undergo repression in a genome-wide manner in late stages of the male germline and identify underlying mechanisms. SCML2, a germline-specific subunit of a Polycomb repressive complex 1 (PRC1), establishes the unique epigenome of the male germline through two distinct antithetical mechanisms. more...

Organism:

Mus musculus

Type:

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

Platform:

GPL13112

28 Samples

Download data: CSV

(Submitter supplied) Studies of mice with Y chromosome long arm deficiencies suggest that the male-specific region (MSYq) encodes information required for sperm differentiation and postmeiotic sex chromatin repression (PSCR). Several genes have been identified on MSYq, but because they are present in more than 40 copies each, their functions cannot be investigated using traditional gene targeting. Here, we generate transgenic mice producing small interfering RNAs that specifically target the transcripts of the MSYq-encoded multicopy gene Sly (Sycp3-like Y-linked). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

12 Samples

Download data: TXT

(Submitter supplied) Studies of mice with Y chromosome long arm deficiencies suggest that the male-specific region (MSYq) encodes information required for sperm differentiation and postmeiotic sex chromatin repression (PSCR). Several genes have been identified on MSYq, but because they are present in more than 40 copies each, their functions cannot be investigated using traditional gene targeting. Here, we generate transgenic mice producing small interfering RNAs that specifically target the transcripts of the MSYq-encoded multicopy gene Sly (Sycp3-like Y-linked). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

12 Samples

Download data: TXT

(Submitter supplied) We conducted a genome-wide expression analysis of wild-type males using three cell populations isolated from mitotic, meiotic and post-meiotic phases of spermatogenesis in Drosophila melanogaster. Our approach was to directly isolate testis regions enriched with RNAs from each of the three specific germline phases. We used microarrays to detail the global gene expression profile in spermatogenesis and identified up- and down-regulated genes between two different spermatogenic phases in pairwise comparisons

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL1322

9 Samples

Download data: CEL

(Submitter supplied) The four mammalian Argonaute family members are thought to share redundant functions in the microRNA pathway, yet only AGO2 possesses the catalytic "slicer" function required for RNA interference. Whether AGO1, AGO3, or AGO4 possess specialized functions remains unclear. Here, we Series_summary = show that AGO4 localizes to spermatocyte nuclei during meiotic prophase I, specifically at sites of asynapsis and in the transcriptionally silenced XY sub-domain, the sex body. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

Platforms:

GPL15103 GPL9250

10 Samples

Download data: TXT

(Submitter supplied) During spermatogenesis, germ cells that fail to synapse their chromosomes or fail to undergo meiotic sex chromosome inactivation (MSCI) are eliminated via apoptosis during mid-pachytene. Previous work showed that Y-linked genes Zfy1 and Zfy2 act as “executioners” for this checkpoint, and that wrongful expression of either gene during pachytene triggers germ cell death. Here, we show that in mice, Zfy genes are also necessary for efficient MSCI and the sex chromosomes are not correctly silenced in Zfy-deficient spermatocytes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10296

8 Samples

Download data: TXT

(Submitter supplied) Microarray analysis of purified pachytene spermatocytes and round spermatids. Each stage was examined in wild type and RNF8 knockout mice in two biological replicates.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

8 Samples

Download data: CEL

(Submitter supplied) To determine the dynamics of open chromatin at a genomic resolution during spermatogenesis, we performed ATAC-seq and detected genomic regions of accessible chromatin by Tn5 transposase during spermatogenesis. We analyzed four representative stages of spermatogenesis: Thy1+ undifferentiated spermatogonia, which contains spermatogonial stem cells and progenitor cells; c-Kit+ differentiating spermatogonia from P7 testes; purified pachytene spermatocytes (PS) undergoing meiosis; and postmeiotic round spermatids (RS) from adult testes

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17021

16 Samples

Download data: CSV

(Submitter supplied) The gene Sly is present in multiple copies on the mouse Y chromosome and encodes a protein that is required for the epigenetic regulation of postmeiotic sex chromosome expression. The X chromosome carries two multicopy genes related to Sly: Slx and Slxl1. Here we investigate the role of Slx/Slxl1 using transgenically-delivered small interfering RNAs to disrupt their function. We show that Slx and Slxl1 are important for normal sperm differentiation and male fertility. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6887

8 Samples

Download data: TXT

(Submitter supplied) RNA was extracted from adult male and adult female Drosophila melanogaster with reversed sex-chromosome parent-of-origin (e.g. maternal-X/paternal-Y vs. paternal-X/maternal-Y)

Organism:

Drosophila melanogaster

Type:

Expression profiling by array

Platform:

GPL6056

21 Samples

Download data: GPR