GEO DataSets

(Submitter supplied) By using RNA-Seq technology, we get genome-wide transcriptome profiles of cloned and in vivo fertilized porcine embryos, from the oocyte to the blastocyst stages. We identified differentially expressed genes between the cloned and in vivo fertilized embryos from distinct stages of development and uncovered associated cellular signaling pathways and upstream transcription factors.

Organism:

Sus scrofa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22918

23 Samples

Download data: TXT

(Submitter supplied) Since the first cloned animal Dolly Sheep was successfully created by using somatic cell nuclear transfer(SCNT) technique. It has become an irreplaceable tool to understand nuclear reprogramming and totipotency and holds huge potentials for regenerative medicine. However, extremely poor development rate of SCNT embryos indicates it is still questionable. The nature of reprogramming oocyte factors and their mechanism of action remain largely unknown.It is evident that the major barrier that hinders the developing iSCNT embryo mainly appears at the time of embryonic genome activation (EGA), which primarily occurs at the eight-cell stage in mammalian. more...

Organism:

Bos taurus; Pantholops hodgsonii; Procapra przewalskii

Type:

Expression profiling by array

Platform:

GPL2112

19 Samples

Download data: CEL

(Submitter supplied) Mammalian oocytes can reprogram somatic cells into totipotent state, which allows animal cloning through somatic cell nuclear transfer (SCNT). However, the great majority of SCNT embryos fail to develop to term due to poorly defined reprogramming defects. Here we demonstrate that histone H3 lysine 9 trimethylation (H3K9me3) in donor nuclei is a major epigenetic barrier that prevents efficient nuclear reprogramming in mouse oocytes. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

14 Samples

Download data: TXT

(Submitter supplied) Global hypermethylations of histone H3 lysine 9 (H3K9) tri- and di-methylation (H3K9me3/2) have been identified in bovine cloned embryos at the embryonic genome activation (EGA) stage (eight-cell stage), but the intrinsic reason for these anomalies remains elusive. To ascertain key factors responsible for aberrant H3K9 methylation, we performed RNA sequencing of transcripts in eight-cell bovine in vitro fertilized (IVF) and SCNT embryo. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23295

8 Samples

Download data: TXT

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

Organism:

Mus musculus

Type:

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

Platform:

GPL13112

191 Samples

Download data: BW, FPKM_TRACKING, TXT

(Submitter supplied) Differentiated cell can be reprogrammed into totipotent embryo through somatic cell nuclear transfer (SCNT). However, this process is highly inefficient and most cloned embryos arrest at certain developmental stages. Through single cell sequencing combined with embryo biopsy, here we generate a global map of DNA methylome and RNA transcriptome for SCNT embryos with distinct developmental fates. We subsequently demonstrate that the unfaithful reactivation of two histone demethylases, Kdm4b and Kdm5b, accounts for the arrest of cloned embryos at 2-cell and 4-cell stage, respectively. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL13112

36 Samples

Download data: TXT

(Submitter supplied) Differentiated cell can be reprogrammed into totipotent embryo through somatic cell nuclear transfer (SCNT). However, this process is highly inefficient and most cloned embryos arrest at certain developmental stages. Through single cell sequencing combined with embryo biopsy, here we generate a global map of DNA methylome and RNA transcriptome for SCNT embryos with distinct developmental fates. We subsequently demonstrate that the unfaithful reactivation of two histone demethylases, Kdm4b and Kdm5b, accounts for the arrest of cloned embryos at 2-cell and 4-cell stage, respectively. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

10 Samples

Download data: BW

(Submitter supplied) Differentiated cell can be reprogrammed into totipotent embryo through somatic cell nuclear transfer (SCNT). However, this process is highly inefficient and most cloned embryos arrest at certain developmental stages. Through single cell sequencing combined with embryo biopsy, here we generate a global map of DNA methylome and RNA transcriptome for SCNT embryos with distinct developmental fates. We subsequently demonstrate that the unfaithful reactivation of two histone demethylases, Kdm4b and Kdm5b, accounts for the arrest of cloned embryos at 2-cell and 4-cell stage, respectively. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

145 Samples

Download data: FPKM_TRACKING

(Submitter supplied) Since discovery of dimethyl sulfoxide (DMSO), it has been applied to the multidisciplinary studies for basic and clinic research; yet its toxicity versus biocompatibility is poorly understood, leading to our inability to discover etiology behind its paradox. Here, we found that exposure of 2% DMSO to mouse zygotes caused developmental arrest at 2/4-cell embryos, and showed a decreased total acetylation levels. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

4 Samples

Download data: BEDGRAPH, TXT