Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

GRO-seq of Drosophila embryos at 2-2.5 hours and 3-3.5 hours after egg laying (AEL)

ABSTRACT: The transition in developmental control from maternal to zygotic gene products marks a critical step in early embryogenesis. Here, we use GRO-seq analysis to map the genome-wide RNA polymerase distribution during the Drosophila maternal to zygotic transition. This analysis unambiguously identifies the zygotic transcriptome, and provides insight into its mechanisms of regulation.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE41611 | GEO | 2013/05/28

SECONDARY ACCESSION(S): PRJNA177686

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

GRO-seq of Drosophila embryos at 2-2.5 hours and 3-3.5 hours after egg laying (AEL)

Project description:The transition in developmental control from maternal to zygotic gene products marks a critical step in early embryogenesis. Here, we use GRO-seq analysis to map the genome-wide RNA polymerase distribution during the Drosophila maternal to zygotic transition. This analysis unambiguously identifies the zygotic transcriptome, and provides insight into its mechanisms of regulation. Two replicates of GRO-seq at each time point.

2013-05-28 | E-GEOD-41611 | biostudies-arrayexpress

A low-input proteomic analysis of mouse maternal-to-zygotic transition

Project description:Maternal-to-zygotic transition (MZT) is a conserved and fundamental process during which the maternal environment of oocyte transits to the zygotic genome driven expression program, and terminally differentiated oocyte and sperm are reprogrammed to totipotency. It is initiated by maternal mRNAs and proteins during the period of zygotic genome quiescence after fertilization, followed by a gradual switch to zygotic genome activation and accompanied by clearance of maternal RNAs and proteins. A key question for embryonic development is how MZT process is regulated. Here we used a low-input proteomic analysis to measure the proteomic dynamics during early development of mouse maternal-to-zygotic transition.

2023-03-27 | PXD041023 | Pride

Dm miR-309 cluster KO Expression Profiling

Project description:To investigate whether early zygotic miR-309 cluster miRNA expression might contribute to the down-regulation of maternal transcripts during the maternal to zygotic transition in Drosophila, we performed microarray analyses of control and miR-309 cluster mutant embryos at 0-1h and 2-3h of embryonic development. One-hour egg collections of w1118 and miR-309-6delta1 mutant flies at 25?C were either aged (2-3h sample) at 25?C or directly processed (0-1h sample). Six independent collections per genotype and time-point were performed. Using this approach, we found that maternal transcripts were stabilized in the miR-309 cluster mutant, indicating that the miR-309 cluster miRNAs are required for the down-regulation of these transcripts during the maternal to zygotic transition in Drosophila.

2009-01-27 | E-TABM-441 | biostudies-arrayexpress

RNA-Seq profiling of Sirt1 deficient mouse oocytes to investigate Sirt1 role in maternal-zygotic transition

Project description:Sirtuin-1 (Sirt1), a NAD+-dependent histone deacetylase, exhibits several properties of a versatile driver of maternal-zygotic transition, due to its epigenetic and non-epigenetic substrates. The study was aimed at the dynamics of Sirt1 in early embryos and the contribution to maternal-zygotic transition. A conditional Sirt1-deficient knock-out mouse model was used. Females were hormonally stimulated and used as oocyte donors. oocytes were parthenogenetically activated and Sirt1-/- two-cell embryos were used for transcriptomic analysis.

2024-07-06 | E-MTAB-13483 | biostudies-arrayexpress

Ultrasensitive proteomics depicted an in-depth landscape for the very early stage of mouse maternal-to-zygotic transition

Project description:Maternal-to-zygotic transition (MZT) is a conserved and fundamental process during which the maternal environment of oocyte transits to the zygotic genome driven expression program, and terminally differentiated oocyte and sperm are reprogrammed to totipotency. Metaphase II (MII) oocytes and zygotes (one-cell embryo) serve as the mature oocyte and the initiation of pre-implantation embryo development respectively, and characterizing their molecular landscapes at protein levels plays an important role in uncovering MZT and zygotic genome activation (ZGA )in mammals. Here we used an ultrasensitive proteomic approach to depict an in-depth landscape for the very early stage of mouse MZT.

2023-05-23 | PXD041399 | Pride

Germline inherited small RNAs facilitate the clearance of untranslated maternal mRNAs in C. elegans embryos (GRO-Seq)

Project description:Inheritance and clearance of maternal mRNAs are two of the most critical events required for animal early embryonic development. However, the mechanisms regulating this process are still largely unknown. Here, we show that together with maternal mRNAs, C. elegans embryos inherit a complementary pool of small non-coding RNAs that facilitate the cleavage and removal of hundreds of maternal mRNAs. These antisense small RNAs are loaded into the maternal catalytically-active Argonaute CSR-1 and cleave complementary mRNAs no longer engaged in translation in somatic blastomeres. Induced depletion of CSR-1 specifically during embryonic development leads to embryonic lethality in a slicer-dependent manner and impairs the degradation of CSR-1 embryonic mRNA targets. Given the conservation of Argonaute catalytic activity, we propose that a similar mechanism operates to clear maternal mRNAs during the maternal-to-zygotic transition across species.

2021-01-13 | GSE146056 | GEO

Precise temporal regulation of post-transcriptional repressors is required for an orderly Drosophila maternal-to-zygotic transition

Project description:In animal embryos the maternal-to-zygotic transition (MZT) hands developmental control from maternal to zygotic gene products. We show that the maternal proteome represents over half of the protein coding capacity of the Drosophila melanogaster genome and that 2% of this proteome is rapidly degraded during the MZT. Cleared proteins include the post-transcriptional repressors Cup, Trailer hitch (TRAL), Maternal expression at 31B (ME31B), and Smaug (SMG). While the ubiquitin-proteasome system is necessary for clearance of all four repressors, distinct E3 ligase complexes target them: the C-terminal to Lis1 Homology (CTLH) complex targets Cup, TRAL and ME31B for degradation early in the MZT; the Skp/Cullin/F-box-containing (SCF) complex targets SMG at the end of the MZT. Deleting the C-terminal 233 amino acids of SMG make it immune to degradation. We show that artificially persistent SMG downregulates the zygotic re-expression of mRNAs whose maternal contribution is cleared by SMG. Thus, clearance of SMG permits an orderly MZT.

2020-06-05 | PXD016523 | Pride

Precise temporal regulation of post-transcriptional repressors is required for an orderly Drosophila maternal-to-zygotic transition

Project description:In animal embryos the maternal-to-zygotic transition (MZT) hands developmental control from maternal to zygotic gene products. We show that the maternal proteome represents over half of the protein coding capacity of the Drosophila melanogaster genome and that 2% of this proteome is rapidly degraded during the MZT. Cleared proteins include the post-transcriptional repressors Cup, Trailer hitch (TRAL), Maternal expression at 31B (ME31B), and Smaug (SMG). While the ubiquitin-proteasome system is necessary for clearance of all four repressors, distinct E3 ligase complexes target them: the C-terminal to Lis1 Homology (CTLH) complex targets Cup, TRAL and ME31B for degradation early in the MZT; the Skp/Cullin/F-box-containing (SCF) complex targets SMG at the end of the MZT. Deleting the C-terminal 233 amino acids of SMG makes the protein immune to degradation. We show that artificially persistent SMG downregulates the zygotic re-expression of mRNAs whose maternal contribution is cleared by SMG. Thus, clearance of SMG permits an orderly MZT.

2021-09-09 | PXD018794 | Pride

KDM4A mediates maternal zygotic transition in mammals

Project description:KDM4A mediates maternal zygotic transition in mammals

| PRJNA532603 | ENA

Transcriptome analysis of wild-type and maternal zygotic double mutant of nup85;nup133 zebrafish embryos during early development

Project description:To study the function of zebrafish nuclear pores during early embryogenesis, we generated maternal zygotic double mutant of nup85;nup133 (MZnup85;nup133) using CRISPR/Cas9 and report the transcriptome-wide changes in comparison to wild-type (WT) embryos. Our analysis reveals a dramatic delay of maternal mRNA degradation and zygotic genome activation in MZnup85;nup133 embryos during maternal-to-zygotic transition.

2023-03-04 | GSE146394 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data