ZGLP1 is a determinant for the oogenic fate in mice (ChIP-seq)
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PROVIDER: PRJNA511432 | ENA |
REPOSITORIES: ENA
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Project description:Mammalian sexual reproduction relies on the dichotomy of male and female germ cell development. However, the underlying mechanisms remain unclear. Here, we show that ZGLP1, a conserved transcriptional regulator with GATA-like zinc fingers, determines the oogenic fate in mice. ZGLP1 acts downstream of bone morphogenetic protein (BMP), but not retinoic acid (RA), and is essential for the oogenic program and meiotic entry. ZGLP1 overexpression induces differentiation of in vitro primordial germ cell-like cells (PGCLCs) into fetal oocytes by activating the oogenic programs repressed by Polycomb activities, whereas RA signaling contributes to the oogenic program maturation and PGC program repression. Our findings elucidate the mechanism for mammalian oogenic fate determination, providing a foundation for promoting in vitro gametogenesis and reproductive medicine.
2020-02-21 | GSE124260 | GEO
Project description:ZGLP1 is a determinant for the oogenic fate in mice
| PRJNA511429 | ENA
Project description:Mammalian sexual reproduction relies on the dichotomy of male and female germ cell development. However, the underlying mechanisms remain unclear. Here, we show that ZGLP1, a conserved transcriptional regulator with GATA-like zinc fingers, determines the oogenic fate in mice. ZGLP1 acts downstream of bone morphogenetic protein (BMP), but not retinoic acid (RA), and is essential for the oogenic program and meiotic entry. ZGLP1 overexpression induces differentiation of in vitro primordial germ cell-like cells (PGCLCs) into fetal oocytes by activating the oogenic programs repressed by Polycomb activities, whereas RA signaling contributes to the oogenic program maturation and PGC program repression. Our findings elucidate the mechanism for mammalian oogenic fate determination, providing a foundation for promoting in vitro gametogenesis and reproductive medicine.
2020-02-21 | GSE124261 | GEO
Project description:ZGLP1 is a determinant for the oogenic fate in mice (RNA-seq)
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Project description:PUF RNA-binding proteins control stem cells in diverse species, including mammalian, arthropod, and nematode, in addition to other biological functions. The C. elegans PUF protein FBF serves as a paradigm for metazoan PUFs. FBF is essential for the maintenance of germline stem cells but also regulates the hermpahrodite sperm/oocyte cell fate switch and is critical for the process of spermatogenesis. We have attempted to “disentangle” the different roles of FBF by comparing its targets in spermatogenic and oogenic germlines. To this end, we used FBF iCLIP to learn its binding profile in an adult hermaphrodite germline that is sexually transformed and makes only sperm due to a temperature-sensitive sex-determination mutant. As a control, we analyzed FBF iCLIP data from oogenic germlines at the same temperature. Using a modified peak calling algorithm, we identified FBF binding sites in oogenic animals at 20°C, oogenic animals at 25°C, and spermatogenic animals at 25°C. Oogenic FBF targets were similar at 20°C and 25°C. By contrast, FBF mRNA targets in spermatogenetic animals had a distinct profile, revealing sperm-specific targets that are likely critical for the FBF role in spermatogenesis. Most importantly, we found FBF bound to mRNAs regardless of germline gender. In particular, a group of 22 mRNAs clustered as bound with high frequency in a gender- and temperature-independent manner. These 22 mRNAsencode RNA-binding proteins and stem cell regulators and may be crucial for the FBF role in in stem cell maintenance.
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Project description:This SuperSeries is composed of the SubSeries listed below.
2020-02-21 | GSE124262 | GEO
Project description:The nematode Caenorhabditis elegans is an important model for studies of germ cell biology, including specification as sperm or oocyte, the meiotic cell cycle and gamete differentiation. Fundamental to those studies is a genome-level knowledge of the germline transcriptome. Here we use RNA-Seq to identify genes expressed in isolated XX gonads, which are roughly 95% germline and 5% somatic gonadal tissue. We generate data from mutants making either sperm [fem-3(q96)] or oocytes (fog-2), both grown at 22M-BM-0C. Our dataset identifies a total of 10,754 mRNAs in the polyadenylated transcriptome of XX gonads, with 1,723 enriched in spermatogenic gonads, 2,869 enriched in oogenic gonads and the remaining 6,274 not enriched in either. These spermatogenic, oogenic and gender-neutral gene datasets compare well with those of earlier studies, but double the number of genes identified. We also query our RNA-Seq data for differential exon usage and find 351 mRNAs with sex-specific isoforms. We suggest that this new dataset will prove useful for studies focusing on C. elegans germ cell biology. Comparison of spermatogenic vs oogenic transcriptomes
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