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Impact of CG5694/ova in Drosophila ovaries

ABSTRACT: Impact of CG5694/ova in Drosophila ovaries

PROVIDER: PRJNA414168 | ENA |

REPOSITORIES: ENA

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Impact of CG5694/ova on H3K4me2 and pol II patterns in Drosophila ovaries [ChIP-seq]

Project description:Purpose: To analysis Ova impact on H3K4me2 and pol II patterns in Drosophila ovaries by ChIP-seq Methods: Chromatin Immunoprecipitation to identify H3K4me2 and pol II patterns in Drosophila ovaries Results: Knockdown of Ova increases of H3K4me2 and Pol II in some genomic regions.

2019-01-14 | GSE104923 | GEO

Impact of depeltion of CG5694/ova on transcription in Drosophila ovaries [miRNA- and RNA-seq]

Project description:Purpose: To analysis Ova impact on transcription in Drosophila ovaries by mRNA-seq and small RNA-seq Methods: mRNA-seq and small RNA-seq of RNA extracted from Drosophila ovaries Results: Ova has no obvious impact on protein coding genes expression or piRNA biogenesis.

2019-01-14 | GSE104924 | GEO

Impact of depeltion of CG5694/ova on transcription in Drosophila ovaries [miRNA- and RNA-seq]

Project description:Impact of depeltion of CG5694/ova on transcription in Drosophila ovaries [miRNA- and RNA-seq]

| PRJNA414175 | ENA

Impact of CG5694/ova on H3K4me2 and pol II patterns in Drosophila ovaries [ChIP-seq]

Project description:Impact of CG5694/ova on H3K4me2 and pol II patterns in Drosophila ovaries [ChIP-seq]

| PRJNA414176 | ENA

Cut&Run in Drosophila melanogaster control, mutant and knockdown ovaries

Project description:H3K27me3 profiles using Cleavage under targets and Release using nuclease (Cut&Run) in control and KD Drosophila melanogaster ovaries. We examined the impact on chromatin profiles in Drosophila melanogaster ovaries in which the lid, the Sin3a, the Snr1 or the mod(mdg4) gene have been selectively knocked down by tissue-specific shRNA expression. We additionally explored H3K27me3 and H3K9me3 in control and dhd mutant ovaries either carrying or not a transgene.

2021-12-10 | GSE174250 | GEO

Impact of CG5694/ova in Drosophila ovaries

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-01-14 | GSE104925 | GEO

H3K4me3 profiling in Drosophila melanogaster ovaries

Project description:Compare the distribution of H3K4me3 between two experimental conditions (WT and Germ cell specific Lid KD) in Drosophila ovaries

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Project description:Next generation sequencing of mRNA for nos-gal4>phf7ey Drosophila ovaries

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Effects of methotrexate on S3 Drosophila cells and Drosophila ovaries

Project description:Comparison of transcript abundance between control (untreated) and methotrexate treated S3 Drosophila cells and ovaries disected from female flies. Keywords: Stress response

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Impact of nuclear Piwi elimination on chromatin state in Drosophila melanogaster ovaries

Project description:The piRNA-interacting Piwi protein is involved in transcriptional silencing of transposable elements in ovaries of D. melanogaster. Here we characterized the genome-wide effect of nuclear Piwi elimination on the presence of the heterochromatic H3K9me3 mark and HP1a, as well as on the transcription-associated mark H3K4me2. Our results demonstrate that a significant increase in the H3K4me2 level upon nuclear Piwi loss is not accompanied by the alterations in H3K9me3 and HP1a levels for several germline-expressed transposons, suggesting that in this case Piwi prevents transcription by a mechanism distinct from H3K9 methylation. We found that the targets of Piwi-dependent chromatin repression are mainly related to the elements that display a higher level of H3K4me2 modification in the absence of silencing, i.e. most actively transcribed elements. We also show that Piwi-guided silencing does not significantly influence the chromatin state of dual-strand piRNA-producing clusters. In addition, host protein-coding gene expression is essentially not affected due to the nuclear Piwi elimination, but we noted an increase in small nuclear spliceosomal RNAs abundance and propose Piwi involvement in their posttranscriptional regulation. Our work reveals new aspects of transposon silencing in Drosophila, indicating that transcription of transposons can underpin their Piwi dependent silencing, while canonical heterochromatin marks are not obligatory for their repression. Examination of histone modifications in ovaries from two different fly lines- piwiNt/piwi2 (mutant) and piwi/+ (wildtype)

2014-05-19 | E-GEOD-56347 | biostudies-arrayexpress

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