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Cis regulatory effects on A-to-I RNA editing in Drosophila melanogaster, Drosophila sechellia and their F1 hybrids

ABSTRACT: Cis regulatory effects on A-to-I RNA editing in Drosophila melanogaster, Drosophila sechellia and their F1 hybrids

PROVIDER: PRJNA279301 | ENA |

REPOSITORIES: ENA

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Cis regulatory effects on A-to-I RNA editing in Drosophila melanogaster, Drosophila sechellia and their F1 hybrids

Project description:We applied microfluidic multiplex PCR and deep sequencing (mmPCR-seq) to quantify RNA editing levels at targeted sites in Drosophila melanogaster, Drosophila sechellia and the species-specific alleles of their F1 hybrids to understand the contribution of cis and trans regulatory factors to regulating RNA editing levels.

2015-03-25 | GSE67236 | GEO

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

Transcriptional profiling of two drosophila species: Drosophila melanogaster versus Drophila sechellia

Project description:Transcriptional profiling of 3 day old virgin male and female adults comparing control male Drosophila melanogaster (MDM) versus male D sechellia (MDS) and comparing control female Drosophila melanogaster (FDM) versus female D sechellia (FDS). Goal was to determine why D sechellia is tolerant to octanoïc acid, the major toxic compound of Morinda citrifolia fruit

2018-01-15 | GSE52191 | GEO

Drosophila sechellia

Project description:Whole genome shotgun (WGS) sequencing of Drosophila sechellia

| PRJNA12711 | ENA

Cis-regulatory divergence of eloF drives reproductive isolation in Drosophila

Project description:The differential production of pheromones is a major barrier to mating between species in Drosophila. Individuals from morphologically similar sister species can produce different sets of cuticular hydrocarbons that allow potential mates to identify them as a suitable partner. In order to elucidate cis-regulatory mechanisms behind speciation, we looked for allele-specific expression in hydrocarbon-producing oenocytes from F1 hybrids of the sister species D. simulans and D. sechellia. By focusing on cis-regulatory changes specific to female oenocytes, we rapidly identified a small number of candidate genes. Oour RNA-seq approach proved to be far more efficient than QTL mapping in identifying candidate genes, and it can be used to pinpoint the genetic basis for a wide range of traits differing due to cis-regulatory divergence between any interfertile species.

2018-05-16 | GSE114478 | GEO

Genomics analysis of L-DOPA exposure in Drosophila sechellia

Project description:The dietary specialist fruit fly Drosophila sechellia evolved to feed primarily on the toxic fruit of Morinda citrifolia. Seeking the basis of adaptations to the unique chemistry of its host plant, we profiled genome-wide gene expression response to L-DOPA because it is highly abundant in M. citrifolia, critical for reproductive success of D. sechellia, and may influence toxin resistance in this species. Here we used a combination of functional genetics and genomics to identify a new gene, Esterase 6 (Est6) that is important for D. sechellia ecological adaptation to this new niche.

2019-09-28 | GSE138119 | GEO

Indel array-based genotyping of pupariation site preference among Drosophila sechellia backcross progeny

Project description:We identified 6,975 insertion/deletion events of between 10 and 100 bp in length from the Drosophila simulans and Drosophila sechellia Mercator/MAVID genomic sequence alignment. Replicate pure samples of Drosophila simulans and Drosophila sechellia gDNA were competitively hybridized to measure the expected relative hybridization intensity of alleles from each species. We used these measured intensities to assess the likelihood that the hybridization signal at each probe in an experimental animal reflected homozygosity or heterozygosity at that locus.

2013-02-26 | GSE44443 | GEO

Indel array-based genotyping of pupariation site preference among Drosophila sechellia backcross progeny

2013-02-26 | E-GEOD-44443 | biostudies-arrayexpress

Regulatory Divergence in Drosophila revealed by mRNA-seq (trans-splicing)

Project description:Deep Sequencing of mRNA from Drosophila melanogaster, Drosophila Sechellia, and their F1 hybrid. These data were generated in a study to analyze the extent and specificity of trans-splicing in Drosophila. mRNA-seq libraies were prepared from poly(A)+ RNA prepared from whole F1 hybrids of D. melanogaster and D. sechellia (female 0-3d post eclosion). Separate control libraries were prepared from D. melanogaster and D. sechellia total RNA (mixed before library preparation). The results of this study identified 80 novel trans-splicing events between homologous alleles of the same gene. Keywords: RNA-Seq Keywords: Expression profiling by high throughput sequencing There were 2 total samples in this study. Paired-end mRNA-seq was used to survey trans-splicing in F1 hybrids of D. melanogaster and D. sechellia. A mixed "control" library was used to assess the frequency of false-positive trans-splicing signal resulting from errors in reference genomes, high-throughput sequencing, and RT-PCR amplification based strand-switching.

2010-07-19 | E-GEOD-22588 | biostudies-arrayexpress

Comparison of D. simulans/D. sechellia F1 male hybrid genome-wide expression values to pure-species parents

Project description:Species often produce sterile hybrids early in their evolutionary divergence, and some evidence suggests that hybrid sterility may be associated with deviations or disruptions in gene expression. In support of this idea, many studies have shown that a high proportion of male-biased genes are underexpressed compared to non-sex-biased genes in sterile F1 male hybrids of Drosophila species. In this study, we examined and compared patterns of misexpression in 4 day old sterile male F1 hybrids of Drosophila simulans and its sibling species, D. sechellia. We analyzed hybrids using genome-wide D. melanogaster arrays from the Drosophila Genome Resource Center (DGRC). The results from a custom array (GPL4022) for this species pair, from the custom array and the genome-wide array for the D. simulans-D. mauritiana species pair, and from the larvae of these two species pairs using the custom array, are presented separately. Keywords: Comparison of pure-species Drosophila expression to hybrid expression

2006-09-13 | GSE5607 | GEO

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