{"database": "metadata", "table": "run_metadata", "rows": [[28935, "SRR26845669", "SRX22541151", "SRS19550737", "SRP472252", "PRJNA1040929", "Slam seq reveals that miR 430 regulates zygotic mRNA during zebrafish embryogenesis [timecourse data]", "GSE247933", "Other", "Background: Early embryonic developmental programs are guided by the coordinated interplay between maternally inherited and zygotically manufactured RNAs and proteins. Although these processes happen concomitantly and affecting gene function during this period is bound to affect both pools of mRNAs  it has been challenging to study their expression dynamics separately. Results: By employing Slam seq  a nascent mRNA labeling transcriptomic approach  in a developmental time series we observe that over half of the early zebrafish embryo transcriptome consists of maternal zygotic genes  emphasizing their pivotal role in early embryogenesis. We provide an hourly resolution of de novo transcriptional waves and follow nascent mRNA trajectories  finding that most de novo transcriptional events are stable throughout this period. Additionally  by blocking microRNA430 function  a key post transcriptional regulator during zebrafish embryogenesis  we directly show that it destabilizes hundreds of de novo transcribed mRNAs from pure zygotic as well as maternal zygotic genes. This unveils a novel miR 430 function during embryogenesis  fine tuning zygotic gene expression  which highlights that Slam seq can be used to disentangle transcriptional and post transcriptional regulation of mRNA levels.  Conclusion: Such valuable insights into zebrafish early embryo transcriptome dynamics emphasize the significance of post transcriptional regulators in zygotic genome activation. These findings pave the way for future investigations into the coordinated interplay between transcriptional and post transcriptional landscapes required for the establishment of animal cell identities and functions. Overall design: Zebrafish embryos were dechorionated and injected at single cell stage with 1000pL of 75mM s4 UTP. Embryos were kept in the dark until collection time. Total RNA was extracted  and kept away from direct light   alkylated  used for library preparation with QuantSeq three prime mRNA Seq Library Prep Kit for Illumina FWD.", "parent bioproject:PRJNA1040928", null, null, "zebrafish 2hour wt 75mM s4u r2", "GSM7903257", null, "tissue:Embryos at 2 hpf of [AB TU]x[TL TLF]|geo loc name:missing|collection date:missing", "zebrafish 2hour wt 75mM s4u r2", "Slamdunk 0.4.3. Adapter sequence: AGATCGGAAGAGCACACGTCTGAACTCCAGTCAC Reads that contain at least 2 T>C conversions were deemed labeled. Assembly: danRer11 Supplementary files format and content: Comma separated values  <.csv>; Total raw read and labeled read counts for all experiments and samples  including spike ins. Rows represent different three primeUTR isoforms for coding genes or full length transcript non coding genes. Columns represent: Ensembl gene IDs by itself non coding transcripts + three primeUTR isoforms coding transcripts  or ERCC IDs spike ins;  Chromosome name; Genomic start of feature; Genomic end of feature; DNA strand of feature; Number of Ts within feature;", "Embryos at 2 hpf", "Embryos were injected with 1000pL of 75mM s4 UTP.", "Trizol\u2122 QuantSeq 3\u2032 mRNA Seq Library Prep Kit for Illumina UDI Bundle FWD  Lexogen GmbH  cat. no. 144.96", "Zebrafish embryos were collected from natural breeding  with random mating parents  embryos were kept at 28.5 C in 0.5x Embryo Media.", "tissue:Embryos|Stage:2 hpf of [AB TU]x[TL TLF]", "GSM7903257", "GSM7903257: zebrafish 2hour wt 75mM s4u r2; Danio rerio; RNA Seq", "GSM7903257 r1", "GSM7903257", "1", "Trizol\u2122 QuantSeq 3\u2032 mRNA Seq Library Prep Kit for Illumina UDI Bundle FWD  Lexogen GmbH  cat. no. 144.96", null, "RNA-Seq", "TRANSCRIPTOMIC", "cDNA", "SINGLE", "ILLUMINA", "NextSeq 2000", null, "SRP472252", null, "loader:fastq load.py", "s2h_2.fastq.gz", "fastq", 4440596805.0, 43966305.0, "GSM7903257 r1", "0:101", "A:1543708731;C:806593065;G:905733733;T:1182095254;N:2466022", 101, null, null, null, 1543708731, 806593065, 905733733, 1182095254, 2466022, "SRX22541151", "SRS19550737", "SRA1751928", "Bazzini Lab, Stowers Institute for Medical Research", "Bazzini Lab, Stowers Institute for Medical Research", 1, 0.63778, null, 0.15677, null, 0.82676, null, 0.61166, null, 101, null, "B", null, "usable mapping rate", "illumina", "nextseq_v2", "3prime", "small_rna", "lexogen", "bulk", "unknown", "unknown", null, "United States", "2023-11-15", "Cleavage", "Embryo", "Embryo Imprecise", "All anatomical structures"]], "columns": ["rowid", "run.accession", "experiment.accession", "sample.accession", "study.accession", "bioproject", "study.title", "study.alias", "study.type", "study.abstract", "study.attributes", "study.PMIDs", "sample.description", "sample.title", "sample.alias", "sample.centername", "sample.attributes", "GEOsample.title", "GEOsample.dataprocessing", "GEOsample.source", "GEOsample.treatmentprotocol", "GEOsample.extractprotocol", "GEOsample.growthprotocol", "GEOsample.characteristics", "GEOsample.accession", "experiment.title", "experiment.alias", "experiment.library_name", "experiment.design_description", "experiment.library_construction_protocol", "experiment.attributes", "experiment.library_strategy", "experiment.library_source", "experiment.library_selection", "experiment.library_layout", "experiment.platform", "experiment.instrument_model", "experiment.spot_descriptor", "experiment.study_ref", "run.title", "run.attributes", "run.filename", "run.semantic_name", "run.total_bases", "run.total_spots", "run.alias", "run.read_lengths", "run.base_counts", "run.r1_length", "run.r2_length", "run.r3_length", "run.r4_length", "run.Acount", "run.Ccount", "run.Gcount", "run.Tcount", "run.Ncount", "run.experiment", "run.pool_member", "submission.accession", "submission.srasource", "submission.bioprojectsource", "seqdetective.n_mates", "seqdetective.mapping_rate.mate1", "seqdetective.mapping_rate.mate2", "seqdetective.nofeature_rate.mate1", "seqdetective.nofeature_rate.mate2", "seqdetective.sparsity.mate1", "seqdetective.sparsity.mate2", "seqdetective.pos_strand_rate.mate1", "seqdetective.pos_strand_rate.mate2", "seqdetective.readlen.mate1", "seqdetective.readlen.mate2", "seqdetective.judgement.mate1", "seqdetective.judgement.mate2", "seqdetective.judgement.reason", "platform_family", "instrument_generation", "read_bias", "selection_class", "prep_kit", "sc_or_bulk", "tech_class", "technology", "tech_variant", "submission.bioprojectsource.country", "earliest_date", "devstage_curation", "devstage_curation_coarse", "tissue_curation", "tissue_curation_coarse"], "primary_keys": ["rowid"], "primary_key_values": ["28935"], "units": {}, "query_ms": 9.345509002741892}