Dataset Information

Chromatin reprogramming in primordial germ cells requires Nanos-dependent down-regulation of the synMuvB transcription factor LIN-15B

ABSTRACT: The Nanos family of RNA-binding proteins has been implicated in the specification of primordial germ cells (PGCs) in a wide range of metazoans, but the underlying mechanisms remain poorly understood. We have profiled the transcriptome of PGCs lacking the nanos homologues nos-1 and nos-2 in C. elegans using cell sorting and RNA-seq. nos-1nos-2 PGCs fail to silence hundreds of genes normally expressed in oocytes and somatic cells, a phenotype reminiscent of PGCs lacking the repressive PRC2 complex. The nos-1nos-2 phenotype depends on LIN-15B, a broadly expressed synMuvB class transcription factor known to antagonize PRC2 activity in somatic cells. LIN-15B is maternally-inherited by all embryonic cells and is down-regulated specifically in PGCs in a nos-1nos-2-dependent manner. Consistent with LIN-15B being a critical target of Nanos regulation, inactivation of maternal LIN-15B restores fertility to nos-1nos-2 mutants. These studies demonstrate a central role for Nanos in reprogramming the transcriptome of primordial germ cells away from an oocyte/somatic fate by down-regulating an antagonist of PRC2 activity.

ORGANISM(S): Caenorhabditis elegans

PROVIDER: GSE100652 | GEO | 2017/12/08

SECONDARY ACCESSION(S): PRJNA392422

REPOSITORIES: GEO

ACCESS DATA

Similar Datasets

Project description:modENCODE_submission_2610 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP184(made_by : S Kim description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The LIN-15B::EGFP fusion protein is expressed in the correct lin-15B spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the LIN-15B transcription factor. tags : GFP::3xFlag mutagen : Bombard outcross : 3 genotype : unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119) official name : OP184 ); Developmental Stage: L3; Genotype: unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage L3; Target gene lin-15B; Strain OP184(made_by : S Kim description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The LIN-15B::EGFP fusion protein is expressed in the correct lin-15B spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the LIN-15B transcription factor. tags : GFP::3xFlag mutagen : Bombard outcross : 3 genotype : unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119) official name : OP184 ); temp (temperature) 20 degree celsius Series_type: CHIP-seq

Project description:modENCODE_submission_3589 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: OP184(official name : OP184 genotype : unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The LIN-15B::EGFP fusion protein is expressed in the correct lin-15B spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the LIN-15B transcription factor. made_by : S Kim ); Developmental Stage: fed L1; Genotype: unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119); Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene lin-15B; Strain OP184(official name : OP184 genotype : unc119(ed3);wgIs184(lin-15B::TY1 EGFP FLAG;unc119) outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : This strain's transgene was constructed by Mihail Sarov at the Max Planck Institute for Cell Biology in Tubiginen using Tony Hyman's recombineering pipeline. The resulting plasmid was used for biolistic transformation of an unc-119(ed3) strain. The LIN-15B::EGFP fusion protein is expressed in the correct lin-15B spatio-temporal expression pattern. This strain was used for ChIP-seq experiments to map the in vivo binding sites for the LIN-15B transcription factor. made_by : S Kim ); temp (temperature) 20 degree celsius

Dataset Information

Chromatin reprogramming in primordial germ cells requires Nanos-dependent down-regulation of the synMuvB transcription factor LIN-15B

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure