Bulk ATAC-seq on whole brain across DGRP lines (homozigous fly lines)
Ontology highlight
ABSTRACT:
ORGANISM(S): Drosophila melanogaster
PROVIDER: GSE181494 | GEO | 2021/10/12
REPOSITORIES: GEO
Similar Datasets
Project description:Bulk ATAC-seq on whole brain across DGRP lines (homozigous fly lines)
| PRJNA752171 | ENA
Project description:Our primary objective was to characterize the amount of variation in transcript abundance among individual flies with identical genotypes. We also wanted to determine which analysis methods would be optimal for RNA-Seq data. To meet these objectives, we performed transcriptional profiling of whole adult individuals from 16 Drosophila Genetic Reference Panel (DGRP) lines. We quantified differential expression among genotypes, environments, and sexes. We randomly chose 16 DGRP lines for this experiment: DGRP-93, DGRP-229, DGRP-320, DGRP-352, DGRP-370, DGRP-563, DGRP-630, DGRP-703, DGRP-761, DGRP-787, DGRP-790, DGRP-804, DGRP-812, DGRP-822, DGRP-850, and DGRP-900. We collected 8 virgin male and 8 virgin female flies from the 16 DGRP genotypes in three replicated environments to produce RNA sequence profiles. We controlled the environmental conditions in the following ways. We seeded the fly cultures with 5 male and 5 female parents. We reared the progeny in a single incubator on standard Drosophila food (http://flystocks.bio.indiana.edu/Fly_Work/media-recipes/bloomfood.htm) at 25°C, 60% humidity, and a 12:12-hour light:dark cycle. We collected and maintained male and female virgins at 20 flies to a same-sex vial for four days prior to RNA extraction to control for social exposure. Flies were frozen for RNA extraction at the same circadian time (1:00 pm) in 96-well plates. PolyA RNA stranded libraries were prepared by modifying an existing protocol. ERCC (External RNA Controls Consortium, SRM2374, beta version, pools 78A/78B) sequences were added during the library preparation as a control. For some samples >1 library was generated to check technical variation. We performed multiplexed single-end 76 bp sequencing on an Illumina HiSeq2000. Reads were mapped to FlyBase release 5 version 57 and release 6 version 01 of the Drosophila melanogaster genome and the ERCC sequences. Mapped reads were counted at the gene level.
2015-12-21 | E-GEOD-60314 | biostudies-arrayexpress
Project description:Flies were fed a normal diet or high-sugar (30% sucrose) diet for 7 days. Brains of flies fasted for 24h or sated were microdissected and immediately frozen in dry ice. The microdissection process from taking the fly out of the vial to freezing the brain took less than a minute. Each brain microdissected piece contains about 50K cells.We dissected 40 brains per condition (4 conditions total) and 4-5 biological replicates
2015-01-21 | ST000155 | MetabolomicsWorkbench
Project description:DGRP lines were raised at 18 degree celsius, adult mated whole fly expression was estimated using microarrays. The same design was previous used to measure expression at 25 degree celsius (E-MTAB-3216).
2020-09-07 | E-MTAB-8953 | biostudies-arrayexpress
Project description:Our primary objective was to characterize the amount of variation in transcript abundance among individual flies with identical genotypes. We also wanted to determine which analysis methods would be optimal for RNA-Seq data. To meet these objectives, we performed transcriptional profiling of whole adult individuals from 16 Drosophila Genetic Reference Panel (DGRP) lines. We quantified differential expression among genotypes, environments, and sexes.
2015-12-21 | GSE60314 | GEO
Project description:In neurons, mRNAs and associated RNA-binding proteins assemble into ribonucleoprotein (RNP) granules essential to regulate mRNA trafficking, local translation, and turnover. Dysregulation of RNA-protein condensation can disturb synaptic plasticity. We report that the novel lncRNA mimi is a constitutive and essential component of large cytoplasmic condensates (RNP granules) in fly neurons that are biochemically enriched by differential centrifugation. Here, employing relative iBAQ quantification we carry out a differential proteomic analysis of cytoplasmic RNP granules in wild-type versus delta-mimi mutant fly brains. Brain lysates from wild-type and mutant flies serve as a general proteome input control.
2022-10-12 | PXD034453 | Pride
Project description:To explore some of the sex differential responses to drug treatment, we exposed 3 day post-eclosion virgin Drosophila melanogaster (genotype DGRP-900, FlyBase line ID: FBst0028261) to 3 FDA approved drugs and characterized transcript abundance among male and female brains after 24 hours of drug exposure. The 3 tested drugs are water-soluble group N (Nervous system) compounds according to The Anatomical Therapeutic Chemical (ATC) classification system. Two (Chlorpromazine and Trifluoperazine2HCl) are primarily used to treat psychotic disorders, while the third (Sodium salicylate) is used as an analgesic and antipyretic. Following drug treatment, we dissected fly brains, isolated polyA+ RNA and performed high-throughput RNA-Seq analysis. We conducted quantification and statistical analysis of gene expression difference between tested drugs, sexes and their interaction.
2017-04-05 | GSE81161 | GEO
Project description:MicroRNAs (miRNAs) are small noncoding RNAs that play critical roles in regulating post transcriptional gene expression. Gall midges encompass a large group of insects that are of economic importance and also possess fascinating biological traits. The gall midge Mayetiola destructor, commonly known as the Hessian fly, is a model organism for studying gall midge biology and insect – host plant interactions. In this study, we systematically analyzed miRNAs from the Hessian fly. Deep-sequencing a Hessian fly larval transcriptome led to the identification of 89 miRNA species that are either identical or very similar to known miRNAs from other insects, and 184 novel miRNAs that have not been reported from other species. Microarray analyses revealed the expression of miRNA genes was strictly regulated during Hessian fly larval development and abundance of many miRNA genes were affected by host genotypes. The identification of a large number of miRNAs for the first time from a gall midge provides a foundation for further studies of miRNA functions in gall midge biology and behavior.
2013-10-01 | GSE43680 | GEO
Project description:We performed RNA-seq experiments to examine the effects of house fly proto-Y chromosomes on gene expression. Two different Y^M chromosomes were investigated, and two different III^M chromosomes were investigated. One of the Y^M genotypes also was also heterozygous for third chromosomes that do not carry a male-determining locus to evaluate the effect of third chromosomes on gene expression independent of being a proto-Y.
2019-02-19 | GSE126685 | GEO
Project description:MicroRNAs (miRNAs) are small noncoding RNAs that play critical roles in regulating post transcriptional gene expression. Gall midges encompass a large group of insects that are of economic importance and also possess fascinating biological traits. The gall midge Mayetiola destructor, commonly known as the Hessian fly, is a model organism for studying gall midge biology and insect M-bM-^@M-^S host plant interactions. In this study, we systematically analyzed miRNAs from the Hessian fly. Deep-sequencing a Hessian fly larval transcriptome led to the identification of 89 miRNA species that are either identical or very similar to known miRNAs from other insects, and 184 novel miRNAs that have not been reported from other species. Microarray analyses revealed the expression of miRNA genes was strictly regulated during Hessian fly larval development and abundance of many miRNA genes were affected by host genotypes. The identification of a large number of miRNAs for the first time from a gall midge provides a foundation for further studies of miRNA functions in gall midge biology and behavior. Two wheat lines M-bM-^@M-^\MollyM-bM-^@M-^] and M-bM-^@M-^\NewtonM-bM-^@M-^] were used in the experiment. Newton is a susceptible winter wheat that contains no Hessian fly R gene, and Molly is a nearly isogenic line of Newton, but contains the R gene H13. Larvae were collected one and three days after egg hatch from susceptible Newton and resistant Molly plants. Total RNA extracted from the collected larvae was used for microarray analysis. Three biological replications were used for each treatment and at each time point.
2013-10-01 | E-GEOD-43680 | biostudies-arrayexpress