SnATAC-seq of the developing human female and male gonads across prenatal development
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PROVIDER: PRJEB88399 | ENA |
REPOSITORIES: ENA
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Project description:snATAC-seq of developing marmoset female and male gonads across development
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Project description:snRNA-seq of the developing human female and male gonads across prenatal development
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Project description:snRNA-seq of developing marmoset female and male gonads across development
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Project description:Single cell transcriptomic analyses are increasingly being employed to study human developmental processes in the gonad to advance our understanding of human gametogenesis. However, to date, these analyses have primarily focused on germ cells, while the somatic niche has been largely overlooked. Moreover, a comparative transcriptomic analysis of both female and male early gonad development on the single cell level is currently lacking. We performed single cell RNA-Seq on whole human fetal gonads from first and second trimester, both from male and female. We define gene expression profiles, which include novel marker genes, of major gonadal somatic cell types and validate them on the protein level. We identify the genetic signature of early human male rete cells, both in male and in female gonads. Overall, our study provides an in-depth molecular characterization of both male and female somatic cell types in early fetal gonads.
2024-01-02 | GSE181558 | GEO
Project description:snATAC-seq of the developing mouse cerebellum across eleven stages
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Project description:We used deep sequencing to characterize 3 families of sRNAs (piRNAs, miRNAs, and tRFs) present in Sus scrofa gonads and focused on the sRNA fraction present in both male and female gonads. Of the sequences detected in the testes, 2.6% of piRNAs, 9% of miRNAs, and 10% of tRFs were also present in the ovaries. Notably, the majority of the shared piRNAs mapped to the introns of ribosomal RNAs and were derived from clustered loci. In addition, the most abundant miRNAs present in the ovaries and testes are conserved and are involved in many biological processes such as the regulation of homeobox genes, the control of cell proliferation, and carcinogenesis. Unexpectedly, we detected a novel sRNA type, the tRFs, which are 30–36-nt RNA fragments derived from tRNA molecules, in gonads
2014-07-27 | GSE57414 | GEO
Project description:We used deep sequencing to characterize 3 families of sRNAs (piRNAs, miRNAs, and tRFs) present in Sus scrofa gonads and focused on the sRNA fraction present in both male and female gonads. Of the sequences detected in the testes, 2.6% of piRNAs, 9% of miRNAs, and 10% of tRFs were also present in the ovaries. Notably, the majority of the shared piRNAs mapped to the introns of ribosomal RNAs and were derived from clustered loci. In addition, the most abundant miRNAs present in the ovaries and testes are conserved and are involved in many biological processes such as the regulation of homeobox genes, the control of cell proliferation, and carcinogenesis. Unexpectedly, we detected a novel sRNA type, the tRFs, which are 30–36-nt RNA fragments derived from tRNA molecules, in gonads Determination miRNA, piRNA and tRF expression in swine gonads
2014-07-27 | E-GEOD-57414 | biostudies-arrayexpress
Project description:MicroRNAs (miRNAs) are a highly conserved class of small RNAs which function in a sequence-specific manner to post-transcriptionally regulate expression of target genes. Tissue-specific miRNA expression studies have discovered numerous functions for miRNAs in various aspects of embryonic development, but a role for miRNAs in gonadal development and sex differentiation has not yet been reported. Using the chicken embryo as a vertebrate model, differential miRNA expression between male and female embryonic gonads, was analysed at three developmental stages (embryonic days (E) 5.5, E6.5 and E9.5), using custom-designed 4x2K CombiMatrix miRNA microarray. The aims of this study were to: 1-identify miRNAs differentialy expressed by sex; 2-identify sex-specific miRNAs; 3-analyse global changes in miRNA up-regulation in male versus female gonads before, during and after the histological onset of sexual differentiation. This study provides a basis for establishing whetehr miRNAs are involved in either initiating or regulating vertebrate gonadal sex differentiation. Keywords: miRNA, sex comparison, developmental stage comparison.
2008-10-11 | GSE13154 | GEO
Project description:MicroRNAs (miRNAs) are a highly conserved class of small RNAs which function in a sequence-specific manner to post-transcriptionally regulate expression of target genes. Tissue-specific miRNA expression studies have discovered numerous functions for miRNAs in various aspects of embryonic development, but a role for miRNAs in gonadal development and sex differentiation has not yet been reported. Using the chicken embryo as a vertebrate model, differential miRNA expression between male and female embryonic gonads, was analysed at three developmental stages (embryonic days (E) 5.5, E6.5 and E9.5), using custom-designed 4x2K CombiMatrix miRNA microarray. The aims of this study were to: 1-identify miRNAs differentialy expressed by sex; 2-identify sex-specific miRNAs; 3-analyse global changes in miRNA up-regulation in male versus female gonads before, during and after the histological onset of sexual differentiation. This study provides a basis for establishing whetehr miRNAs are involved in either initiating or regulating vertebrate gonadal sex differentiation. Keywords: miRNA, sex comparison, developmental stage comparison. miRNA samples from male and female embryonic chicken gonads from three developmental stages: embryonic day (E) 5.5 (Hamilton & Hamburger (HH) stage 27-28), E6.5 (HH stage 29-30) & E9.5 (HH stage 35-36). Samples are listed with biological replicates used for analysis in brackets following: 1 - Male E5.5 (5); 2 - Female E5.5 (4); 3 - Male E6.5 (5); 4 - Female E6.5 (3); 5 - Male E9.5 (4); 6 - Female E9.5 (4).
2010-05-18 | E-GEOD-13154 | biostudies-arrayexpress
Project description:Background: The Japanese eel (Anguilla japonica) holds significant economic value in East Asia, but limitations in understanding its reproductive biology have hindered advancements in artificial breeding techniques. Previous research has primarily focused on conserved sex differentiation genes, offering limited insights into the broader molecular mechanisms driving gonadal development and sexual dimorphism. To address these limitations, this study aims to investigate key genes and pathways involved in gonadal development through a comprehensive transcriptomic analysis of male and female eel gonads. Results: PacBio Iso-Seq and Illumina RNA-Seq technologies were combined to conduct a full-length transcriptome analysis of male and female Japanese eel gonads at a post-differentiation, pre-maturation stage. A total of 24661 unigenes were identified in ovaries and 15023 in testes, along with genomic regulatory elements such as transcription factors, simple sequence repeats, and long non-coding RNAs. Additionally, 1,210 differentially expressed genes were detected. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses revealed significant pathways involved in cell cycle regulation, metabolic processes, apoptosis, and hormone activity. Notably, several reproductive-related genes, including bambi, ccnb1, cdc20, gdf9, prlh, ccdc39, chrebp, tspo, syce3, and ngb, demonstrated significant dimorphic expression in eel gonads. Conclusions: This study provides valuable insights into the molecular mechanisms of gonadal differentiation and sexual dimorphism in Japanese eels. The findings expand the genetic resources available for the eel breeding industry and could facilitate the development of improved artificial breeding techniques focused on reproductive development.
2025-01-20 | GSE279153 | GEO