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CNOT6L Couples the Selective Degradation of Maternal Transcriptsto Meiotic Cell Cycle Progression in Mouse Oocyte [total RNA-seq]

ABSTRACT: Purpose: The goals of this study are to study the function of Cnot6l during oocyte maturation and the differences between loss of Cnot6l and Btg4 during oocyte maturation. Methods:Comparing the degration of transcripts at different stage in WT, Btg4-/- and Cnot6l-/- oocytes by RNA sequencing. Results: Using an optimized data analysis workflow, we mapped about 15 million sequence reads per sample to the mouse genome (build mm9) and identified 23236 transcripts with TopHat workflow. Conclusions: CNOT6L stimulated degradation of maternal transcriptsto oocyte meiotic maturation.

ORGANISM(S): Mus musculus

PROVIDER: GSE118562 | GEO | 2018/11/23

REPOSITORIES: GEO

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CNOT6L Couples the Selective Degradation of Maternal Transcriptsto Meiotic Cell Cycle Progression in Mouse Oocyte [polysome RNA-seq]

Project description:Purpose: The goals of this study are to study the function of Cnot6l during oocyte maturation . Methods: Comparing the polysome-bounded transcripts at GV, MI and MII stage in WT and Cnot6l-/- oocytes by RNA sequencing. Results: Using an optimized data analysis workflow, we mapped about 15 million sequence reads per sample to the mouse genome (build mm9) and identified 23236 transcripts with TopHat workflow. Conclusions: CNOT6L stimulated degradation of maternal transcriptsto oocyte meiotic maturation.

2018-11-23 | GSE118563 | GEO

Transcriptome assay of materal mRNA degradation in Btg4-deleted oocytes

Project description:We analyzed the functions of BTG family proteins in maternal mRNA degradation in mouse oocytes. By comparing the degradation of transcripts in WT oocytes and KO oocytes, we are able to know the defects in maternal mRNA clearance in BTG4-deleted oocytes, and identified the BTG4 target genes in oocyte cyplasmic maturation. 2 WT oocyte samples at GV stage, 2 WT oocyte samples at MII stage, 2 Btg4-/- oocyte samples at GV stage and 2 Btg4-/- oocyte samples at MII stage?2 WT embryo samples at zygote stage, 2 WT embryo samples at 2-cell stage, 2 Btg4-/- embryo samples at zygote stage and 2 Btg4-/- embryo samples at 2-cell stage , and a WT GV oocyte, a WT MII oocyte, a Erk-/- GV oocyte and a Erk-/- MII oocyte are performed RNA sequencing.

2016-03-16 | E-GEOD-71257 | biostudies-arrayexpress

Transcriptome assay of materal mRNA degradation in Btg4-deleted oocytes

2016-03-16 | GSE71257 | GEO

CNOT6L Couples the Selective Degradation of Maternal Transcriptsto Meiotic Cell Cycle Progression in Mouse Oocyte

Project description:CNOT6L Couples the Selective Degradation of Maternal Transcriptsto Meiotic Cell Cycle Progression in Mouse Oocyte

| PRJNA486092 | ENA

LSM14B is essential for oocyte meiotic maturation by regulating maternal mRNA storage and clearance

Project description:Fully grown oocytes remain transcriptionally quiescent, yet many maternal mRNAs are synthesized and retained in growing oocytes. We now know that maternal mRNAs are stored in a structure called the mitochondria associated ribonucleoprotein domain (MARDO). But the components and functions of MARDO remain elusive. Here, we found that LSM14B knockout prevents the proper storage and timely clearance of mRNAs (including Cyclin B1, Btg4, and other mRNAs that are translationally activated during meiotic maturation), specifically by disrupting MARDO assembly during oocyte growth and meiotic maturation. With decreased levels of storage and clearance, the LSM14B knockout oocytes failed to enter meiosis II, ultimately resulting in female infertility. Our results demonstrate the function of LSM14B in MARDO assembly, couple the MARDO with mRNA clearance and oocyte meiotic maturation

2023-10-17 | PXD042761 | Pride

Expression data from control or CCR4b/CNOT6L-depleted cells

Project description:The stability of mRNA influences the abundance of cellular transcripts and proteins. Deadenylases play critical roles in mRNA turnover and thus are important for the regulation of arious biological events. Here, we report the identification and characterization of CCR4b/CNOT6L, which is homologous to yeast CCR4 mRNA deadenylase. We compared the expression profiles of the cellular genes between control and CCR4b/CNOT6L-depleted cells by microarray analysis

2011-08-03 | GSE31148 | GEO

Transcriptome analysis of mouse Cnot6l-/- preovulatory oocytes (GV), ovulated eggs (MII), and 1-cell zygotes

Project description:We profiled transcriptomes from Cnot6l deadenylase knock-out mouse GV oocytes, MII eggs and 1-cell zygotes in order to analyse its function during the oocyte-to-embryo (OET) transition. Transcriptome of wild-type golden hamster GV oocytes was also profiled.

2018-07-10 | GSE116771 | GEO

LSM14B is essential for oocyte meiotic maturation by regulating maternal mRNA storage and clearance

2023-10-15 | GSE231648 | GEO

NAT10-mediated mRNA N4-acetylation is Essential for the Translational Regulation During Oocyte Meiotic Maturation in Mice

Project description:Mammalian oocyte maturation is driven by strictly translational regulation of maternal mRNAs stored in the cytoplasm. However, the function and mechanism of post-transcriptional chemical modifications especially the newly identified N4-acetylcytidine (ac4C) catalyzed by N-acetyltransferase 10 (NAT10) in this process are previously unknown. In this study, we developed a low-input ac4C sequencing technology—ac4C LACE-seq and mapped 8241 ac4C peaks at the whole transcriptome level using 50 mouse oocytes at the germinal vesicle (GV) stage. We profiled the mRNA landscapes of NAT10-interactions and ac4C modifications. The NAT10-interacted and ac4C modified transcripts displayed association with high translation efficiency in oocytes. Oocyte-specific Nat10 knockout wiped out ac4C signals in oocytes and caused severe defects in meiotic maturation and female infertility. ac4C LACE-seq results indicated that Nat10 deletion led to a failure of ac4C deposition on mRNAs encoding key maternal factors such as MAY2, ZAR1, BTG4 and cyclin B1 that regulate transcriptome stability and maternal-to-zygotic transition. Nat10-deleted oocytes had decreased mRNA translation efficiencies during meiotic maturation, partially due to the direct inhibition ac4C sites on specific transcripts. In sum, we developed low-input, high-sensitivity mRNA ac4C profiling approach and highlighted the important physiological function of ac4C in precise regulation of the oocyte meiotic maturation by enhancing translation efficiency.

2024-02-18 | GSE254288 | GEO

Single cell RNA-seq reveals mRNAs and lncRNAs important for oocyte meiosis and maturation in pigs

Project description:The faithful execution of molecular program underlying oocyte maturation and meiosis is vital to generate competent haploid gametes for effective reproduction in mammals. However, the organization and principle of gene modules and molecular circuits for oocyte meiosis remain obscure. Here, we employed the recently developed single cell RNA-seq technique to profile the transcriptomes of germinal vesicle (GV) and metaphase II (MII) oocytes, aiming to discover the dynamic changes of mRNAs and long non-coding RNAs (lncRNAs) during oocyte meiotic maturation. During the transition from GV to MII, total number of RNAs (mRNAs and lncRNAs) in oocytes decreased. Moreover, 1807 (602 up- and 1205 down-regulated) mRNAs and 313 (177 up- and 136 down-regulated) lncRNAs were significantly differentially expressed. During meiotic maturation, expression level of most mRNAs decreased, but mitochondrial RNAs, and also more lncRNAs and their target genes increased. Both DE mRNAs and lncRNAs were enriched in multiple biological and signal pathways potentially associated with oocyte meiosis. Highly abundantly expressed mRNAs (including DNMT1, UHRF2, PCNA, ARMC1, BTG4, ASNS and SEP11) and lncRNAs were also discovered. Weighted gene co-expression network analysis (WGCNA) revealed 20 hub mRNAs, and three modules of contrasting functions in oocyte maturation and meiosis. Taken together, our findings provide insights and resources for further functional investigation of mRNAs/lncRNAs in mammalian oocyte meiosis and maturation.

2021-07-19 | GSE160334 | GEO

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