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Drosophila melanogaster

ABSTRACT: Expression data from Drosophila melanogaster err mutant animals vs. wild type animals at a mid-second instar larval time

OTHER RELATED OMICS DATASETS IN: E-GEOD-23336

PROVIDER: PRJNA131219 | ENA |

REPOSITORIES: ENA

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Expression data from Drosophila melanogaster err mutant animals vs. wild type animals at a mid-second instar larval time

Project description:Cancer cells utilize a unique form of aerobic glycolysis, called the Warburg effect, to efficiently produce the macromolecules required for proliferation. Here we show that a metabolic program related to the Warburg effect is used during normal Drosophila development and regulated by the fly ortholog of the Estrogen-Related Receptor (ERR) family of nuclear receptors. dERR null mutants die as second instar larvae with abnormally low ATP levels, diminished triacylglyceride stores, and elevated levels of circulating sugars. Metabolomic profiling revealed that the pathways affected in these mutants correspond to those used in the Warburg effect. The expression of active dERR protein in mid-embryogenesis triggers a coordinate switch in gene expression that drives a metabolic program supporting the dramatic growth that occurs during larval development. This study suggests that mammalian ERR family members may promote cancer by directing a metabolic state that supports proliferation. Drosophila larvae were staged at a mid-second instar time point and hand sorted for developmental progression. Individual pools of isogenic animals were collected for each replicate. Three replcates were assayed for each genotype. The two genotypes assayed were a control wild type strain (w1118) and a transheteroallelic combination of err mutant alleles (err1/err2). Labled RNA was then hybridized onto Affymetrix microarrays.

2011-02-02 | E-GEOD-23336 | biostudies-arrayexpress

D. melanogaster eye-antennal imaginal discs developmental transcriptome

Project description:Transcriptomes of Drosophila melanogaster eye-antennal imaginal discs at three sequential larval stages: late 2nd instar (72h after egg laying (AEL)), mid 3rd instar (96h AEL) and late 3rd instar (120h AEL).

2018-01-08 | GSE94915 | GEO

Transcriptomic analysis of wild-type and amos mutant D. melanogaster third-instar larval antennal discs and adult antennae

Project description:Comparative transcriptomic analysis of Drosophila melanogaster third-instar larval antennal discs and adult antennae from wild-type animals and amos mutant animals.

2021-12-13 | GSE190696 | GEO

Expression data from Drosophila melanogaster err mutant animals vs. wild type animals at a mid-second instar larval time

2011-02-02 | GSE23336 | GEO

Gene expression analysis of HP1C mutants in D. melanogaster

Project description:We profile gene expression changes in a mutant strain lacking the D. melanogaster HP1 homolog HP1C at the third instar larval stage. Compared to the yw control strain (previously published) several hundred genes are deregulated.

2021-07-21 | GSE180302 | GEO

Drosophila melanogaster female late third instar larval gonads single-cell RNA-Seq (scRNA-Seq) profiling

Project description:The larval ovary is made up of multiple cell types including germ cells and somatic cells. The diversity of cell types and transcriptional regulation is not fully understood. To get single cell resolution of larval ovary regulation, we generated single-cell RNA expression profiles (scRNA-Seq) from late third instar larval ovaries of a reference Drosophila melanogaster genotype w[1118].

2019-02-01 | GSE125948 | GEO

Gene expression analysis of HP1B mutants in D. melanogaster.

Project description:We profile gene expression changes in two mutant strains lacking the D. melanogaster HP1 homolog HP1B at the third instar larval stage. Compared to the yw control strain, several hundred genes are deregulated, with metabolic genes being over-represented among the deregulated gene set.

2018-10-05 | GSE120841 | GEO

Dynamics and stage-specificity of between-population gene expression divergence in the Drosophila melanogaster larval fat body (RNA-seq in a derived population)

Project description:We used RNA-seq in a derived European Drosophila melanogaster population from Germany (MU) to examine coding gene expression variation in the larval fat body during the late wandering third instar stage.

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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. Larval microarrays (FL 6 samples) are based on RNA extracted from 6 independent sets of 50 mid 3rd instar larvae reared in microgravity and collected on the day of landing after 12 days and 18.5 hours on the space shuttle and the same number of control larvae raised on ground (GL 6 samples). Adults microarrays (F1 3 samples) are based on RNA from 3 sets of 20 adult females each, that emerged during spaceflight and within 4 hours of landing and the same number of adult females from the corresponding ground control containers (G1 3 samples).

2011-08-31 | E-GEOD-23880 | biostudies-arrayexpress

Developmental time-course study of Drosophila melanogaster, D. sechellia, D. simulans, and D. sim x D.s sec hybrids

Project description:In order to test the hypothesis that adult hybrid misexpression results from the cascading effect of earlier-expressed developmentally important improperly regulated genes, as well as address whether Von Baer’s 3rd law (suggesting that earlier stages of development should be more similar between species than later stages) holds at the level of gene expression, we conducted whole-transcriptome Drosophila melanogaster cDNA microarray-based expression profiling of males of D. melanogaster, D. sechellia, and D. simulans, at four synchronized developmental time-points (3rd instar larval [larval], early pupal, late pupal, and newly-emerged adult [adult]). D. simulans and D. sechellia shared a most recent common ancestor (MRCA) ~0.5 to 1.0 million years ago (MYA) and form a clade that shared an MRCA with D. melanogaster approximately 5.4 MYA. In addition, we also performed the same analysis on the male interspecific F1 hybrids of the D. simulans (♀) × D. sechellia (♂) cross.

2010-08-03 | GSE17535 | GEO

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