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Effect of mitochondria on nuclear gene expression in Drosophila melanogaster

ABSTRACT: Five different mitochondrial strains were introgressed in male and female fruit flies with identical (w1118) nuclear genetic background.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE24729 | GEO | 2011/01/09

SECONDARY ACCESSION(S): PRJNA132349

REPOSITORIES: GEO

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Effect of mitochondria on nuclear gene expression in Drosophila melanogaster

Project description:Five different mitochondrial strains were introgressed in male and female fruit flies with identical (w1118) nuclear genetic background. 40 samples: Five mitochondrial strains, two independent introgressions, two sexes, two biological replicates.

2011-01-09 | E-GEOD-24729 | biostudies-arrayexpress

Drosophila melanogaster

Project description:RNA-Seq on SOLiD platform of DrosDel deficiency and w1118 flies

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RNA-seq of Drosophila melanogaster testis with or without tbrd-1 knock out or tplus3a/b knock out

Project description:Many protein complexes are involved in gene regulation during Drosophila spermatogenesis. tplus3a and tplus3b code for Plus3 domain proteins and are enriched in spermatocytes. Male flies ∆tplus3a/b carrying deletions of both genes in trans to deficiency Df(2L)BSC151 show severely reduced fertility. tbrd-1 is known to regulate hundreds of genes during spermatogenesis in cooperation with tTAFs. To gain more insight into the regulatory mechanisms during spermatogenesis we used RNA from testes of ∆tplus3a/b/Df(2L)BSC151 and tbrd-11 mutant flies for RNAseq in comparison to w1118 wild-typic control. RNA was isolated with Trizol from 200 Testes dissected from w1118, homozygous tbrd-11 mutants or ∆tplus3a/b/Df(2L)BSC151. After DNAse I digestion RNA was purified and RNAseq was performed in three replicates. Genotype Description: w1118: wild-typic control tbrd-11: homozygous tbrd-11 mutants (knock-out through P{EPgy2}tbrd-11, as described in Leser et al., 2012) ∆tplus3a/b/Df(2L)BSC151: CRISPR/Cas9 deletion mutants, representing knock-out of both tplus3 and tplus3b. Male flies y1cho2v1;∆tplus3a/b/CyO were crossed with virgin females w1118;Df(2L)BSC151/CyO. Male offspring with w1118;∆tplus3a/b/Df(2L)BSC151 were used for RNAseq.

2019-11-04 | E-MTAB-7013 | biostudies-arrayexpress

Drosophila melanogaster gene expression changes after spaceflight.

Project description:Gene expression levels were determined in 3rd instar and adult Drosophila melanogaster reared during spaceflight, to elucidate the genetic and molecular mechanisms underpinning the effects of microgravity on the immune system. The goal was to validate the Drosophila model for understanding alterations of innate immune responses in humans due to spaceflight. Five containers of flies, with ten female and five male fruit flies in each container, were housed and bred on the space shuttle (average orbit altitude of 330.35 km) for 12 days and 18.5 hours, with a new generation reared in microgravity. RNA was extracted on the day of shuttle landing from whole body animals (3rd instar larvae and adults), hybridized to Drosophila 2.0 Affymetrix genome arrays, and the expression level of all genes was normalized against the gene expression level from the corresponding developmental stage animals raised on ground. Spaceflight altered the expression of larval genes involved in the maturation of plasmatocytes (macrophages) and their phagocytic response, as well as the level of constitutive expression of pattern recognition receptors and opsonins that specifically recognize bacteria, and of lysozymes, antimicrobial peptide pathway and immune stress genes, hallmarks of humoral immunity.

2011-09-01 | GSE23880 | GEO

RNA-Seq of head tissue from Drosophila melanogaster Wild Type and Adar5G1dAdar-/- mutant

Project description:Purpose: Validation of Drosophila A-to-I editing sites Methods: We collected heads of 5 day old male dAdar-/- mutant (y, Adar5G1, w)26 and wild type (w1118) flies. Poly(A)+ RNA was used to prepare RNA-seq libraries which were subsequently sequenced single-end by an Illumina GAII Results:We builded a framework to identify RNA editing events using RNA-seq data alone in Drosophila. To validate whether the identified A-to-G sites were bona fide A-to-I editing events, we performed RNA-seq for the D.melanogaster wild-type strain (w1118) and for the Adar5G1 null mutant that eliminates RNA editing. We found that our method achieved high accuracy; 98.2% of all A-to-G sites showed only adenosine in the Adar5G1 sample Conclusions: We anticipate that our method will be very effective in the future to identify RNA editing events in different species. mRNA profiles of heads of 5 day old male dAdar-/- mutant (y, Adar5G1, w)26 and wild type (w1118) flies

2012-12-20 | E-GEOD-42815 | biostudies-arrayexpress

Expression analysis of D. melanogaster selected for contrasting life histories

Project description:Study of transcriptome level changes in Drosophila melanogaster populations with divergent reproduction and lifespan patterns A 120 chip study using mRNA recovered from unmated female fruit flies 35 generations after selection for contrasting life history traits. The study includes samples from five age classes and two tissues of flies derived from three replicated populations.

2012-05-22 | E-GEOD-38106 | biostudies-arrayexpress

Genomic responses to Phenobarbital in Drosophila melanogaster

Project description:Phenobarbital is a well studied xenobiotic compound. In this study, we describe the genomic responses in fruit flies and examine whether animals mutant for DHR96, an ortholog of xenobiotic nuclear receptors PXR and CAR, plays a role in mediating xenobiotic responses in Drosophila. Keywords: dose response in mutant vs. wild type

2006-06-23 | GSE5096 | GEO

Microarray experiment to identify gene expression changes in response to Phenobarbital treatment and CncC overexpression in Drosophila.

Project description:Transcriptional profiling of mature adult w1118 males treated with phenobarbital compared to controls and heat treated HS-CncC flies compared with heat treated w1118 flies.

2011-11-29 | GSE30087 | GEO

Characterization of the redox proteome of Drosophila melanogaster S2 cells and w1118 fly eyes.

Project description:Reactive oxygen species (ROS) serve as intracellular signaling molecules; however, in excess ROS molecules are damaging to biomacromolecules such as DNA, lipids, and proteins. The excess accumulation of ROS leads to oxidative stress, disrupting redox homeostasis in the cell and has been linked with aging and neurodegenerative disease. The eye is particularly vulnerable to oxidative stress due to the tissue’s high energy demand and generation of ROS by products. In proteins, the thiol group on cysteine residues is susceptible to oxidation. Cysteine residues have multiple oxidation states that can be classified into two categories—reversible and irreversible. Irreversible oxidation states include sulfinic and sulfonic acids, which may alter or impair the activity of the protein depending on the position of the cysteine residue. In contrast, reversible oxidation states include sulfenic acid or inter- and intramolecular disulfides, and can often function as redox sensors in the cell. Here, we sought to evaluate how increasing amounts of oxidative stress alters the redox proteome landscape in Drosophila. To characterize the redox proteome, we developed an iodoTMT-multiplex isolation, labeling, and enrichment method to identify cysteine availability and potential oxidation in both S2 cells and w1118 fly eyes. To do this, we exposed S2 cells to 20mM H2O2 relative to control (untreated), and w1118 flies to prolonged blue light versus an untreated control, followed by redox proteome profiling with iodoTMT-sixplex reagents.

2023-04-27 | PXD034050 | Pride

Microarray experiment to identify gene expression changes in response to Phenobarbital treatment and CncC overexpression in Drosophila.

Project description:Transcriptional profiling of mature adult w1118 males treated with phenobarbital compared to controls and heat treated HS-CncC flies compared with heat treated w1118 flies. Mature adult w1118 males were treated witheither 5% sucrose alone or 5% sucrose supplemented with 0.3% phenobarbital for six hours, following which RNA was extracted and subjected to micraoarray analysis.Similarly,mature adult w1118 flies or HS-CncC flies were subjected to heat treatment at 37oC for 30 minutes and recovered at room temperature for two hours,after which RNA was exctracted and subjected to microarray analysis.

2011-11-29 | E-GEOD-30087 | biostudies-arrayexpress

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