Project description:Whole-transcriptome analysis using total RNA-seq (rRNA depleted) of Drosophila melanogaster samples from whole-embryo or mesodermal FACS-sorted cells (using a transgenic fly line expressing a EGFP-tagged protein in mesoderm, during different stages of early embryonic development.
Project description:TRAPseq was performed on Drosophila melanogaster astrocytes at different stages of development to assess the changes in gene translation that occur in astrocytes at these different stages.
Project description:The predominant form of RNA editing in animals is the enzymatic conversion of adenosine to inosine that is sequenced in cDNA as guanine. While RNA editing should be identifiable from RNA-seq data alone, genomic SNPs as well as sequencing and mapping errors result in a high false-positive rate. We used Inosine Chemical Erasing (ICE) with deep sequencing (ICE-seq) in order to validate A-to-I RNA editing genome-wide without the need for the sequencing of the underlying genomic DNA. We called RNA editing events in the head transcriptome of the reference strain of Drosophila melanogaster and six resequenced strains of Drosophila yakuba using the Illumina HiSeq and NextSeq platforms. We compared RNA editing sites reported in other studies and measured the level of conservation between D. melanogaster and D. yakuba. We found that while some of the best-studied editing sites in D. melanogaster are also edited in D. yakuba, we also detect a significant amount of species-specific editing in genes with different Gene Ontology enrichments, which suggests that the biological function of RNA editing in the two Drosophila species is diverging.
Project description:Time course analysis series in Development of the transcriptome from Drosophila melanogaster using the Heidelberg FlyArray. All stages were hybridized against embryonic stage 0-4 h as reference control. Keywords: time-course
Project description:This is a dataset generated by the Drosophila Regulatory Elements modENCODE Project led by Kevin P. White at the University of Chicago. It contains ChIP-chip data on Agilent 244K dual-color arrays for 6 Histone modifications (H3K9me3, H3K27me3, H3K4me3, H3K4me1, H3K27Ac, H3K9Ac), PolII and CBP/p300. Each factor has been studied for 12 different time-points of Drosophila development. This SuperSeries is composed of the following subset Series: GSE15422: ChIP-chip of H3K9me3 in Drosophila at different time points of development GSE15423: ChIP-chip of H3K27me3 in Drosophila at different time points of development GSE15424: ChIP-chip of H3K4me3 in Drosophila at different time points of development GSE15425: ChIP-chip of H3K4me1 in Drosophila at different time points of development GSE15426: ChIP-chip of H3K9Ac in Drosophila at different time points of development GSE15427: ChIP-chip of CBP/p300 in Drosophila at different time points of development GSE15430: ChIP-chip of H3K27Ac in Drosophila at different time points of development GSE16013: Genome-wide maps of chromatin state in staged Drosophila embryos, ChIP-seq GSE16702: ChIP-chip of PolII in Drosophila at different time points of development GSE18068: Genome-wide maps of chromatin state in staged Drosophila embryos, RNA-seq For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf ChIP-chip: For each combination of time-point and antibody, triplicate ChIP experiments have been performed and hybridized on Agilent 244K arrays. 3 arrays per genome have been used so that each time-point is a set of 9 tiling arrays. ChIP-seq: For each combination of time-point and antibody, triplicate ChIP experiments have been performed and hybridized on Agilent 244K arrays. The hybridizations have been verified by sequencing one replicate of IP and one replicate of Input following Solexa sequencing procedure. RNA-seq: For each time-point (E-0-4h, E-4-8h, E-8-12h, E-12-16h, E-16-20h, E20-24h, L1, L2, L3, Pupae, Adult Males and Adult Females) a total RNA extraction has been performed. After conversion into double stranded DNA, the samples have been sequenced in duplicate on Solexa Genome Analyzer following Solexa sequencing procedure.
Project description:Cmi (also known as Lpt) is the PHD finger domain-containing subunit of the Drosophila MLR COMPASS (Cmi-Trr) complex. ChIP-seq analysis of Cmi at different stages of Drosophila development suggests dynamic genome localization of the Cmi/MLR complex on enhancers and promoters during Drosophila development.
Project description:Time course analysis series in Development of the transcriptome from Drosophila melanogaster using the Heidelberg FlyArray. All stages were hybridized against embryonic stage 0-4 h as reference control.
Project description:We used immunostaining and FACS to enrich for distinct neural cell types at multiple stages of Drosophila neurogenesis for RNA-Seq In Drosophila melanogaster, cell-type specification during early nervous system development requires precise regulation of gene expression in time and space. To investigate the gene regulation patterns in early neuronal development, we developed a method 'DIV-SortSeq' to enrich for specific neuroglial cell types for RNA sequencing: from early columnar subdivision and specification, through neuroglial differentiation. DIV-SortSeq recapitulates many of the known protein-coding transcriptome dynamics, as well as novel transcriptional regulatory patterns. We also performed nuclear-cytoplasmic fractionation of whole embryos - Fractionation-Seq - to assess temporal changes in subcellular localization of transcripts during embryogenesis. We present these data as a resource to permit further in-depth investigation into the functional roles of the coding and noncoding transcriptome during early Drosophila neurogenesis.