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Expression data for whole adult tissue; Drosophila males of seven species

ABSTRACT: Co-expression of genes that physically cluster together is a common characteristic of eukaryotic transcriptomes. Identifying these groups of co-expressed genes is important to the functional annotation of genomes and understanding the evolutionary fates of the clustered genes. We used microarrays to measure gene expression in seven closely related Drosophila species, to identify domains clusters within a species of Drosophila (D. simulans) and that are evolving among species in the D. melanogater subgroup. Keywords: species comparison

ORGANISM(S): Drosophila sechellia Drosophila simulans Drosophila santomea Drosophila teissieri Drosophila yakuba Drosophila mauritiana Drosophila melanogaster

PROVIDER: GSE7873 | GEO | 2007/05/23

SECONDARY ACCESSION(S): PRJNA99899

REPOSITORIES: GEO

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Transcription profiling of males from Drosophila simulans, Drosophila mauritiana, Drosophila melanogaster, Drosophila santomea, Drosophila sechellia, Drosophila teissieri, Drosophila yakuba

Project description:Co-expression of genes that physically cluster together is a common characteristic of eukaryotic transcriptomes. Identifying these groups of co-expressed genes is important to the functional annotation of genomes and understanding the evolutionary fates of the clustered genes. We used microarrays to measure gene expression in seven closely related Drosophila species, to identify domains clusters within a species of Drosophila (D. simulans) and that are evolving among species in the D. melanogater subgroup. Experiment Overall Design: Assays were carried out on three independent (biological) replicates per species for a single line of the following five species: D.yakuba (Tuscon Stock Center Number: 14021-0261.00), D.santomea (TSCN: 14021-0271.00), D.teissieri (TSCN: 14021-0257.00), D.mauritiana (David 105, TSCN: 14021-0241.01), D.sechellia (Roberstson, TSCN: 14021-0248.21). Three biological replicates for D.melanogaster. The samples assayed for D.melanogaster reflect an even genotypic contribution of 10 isogenic lines developed from a wild population (Winters, CA) and crossed in a round-robin design.For D. simulans, three replicate arrays were used to assay each of 10 round-robin crosses between 10 isogenic lines developed from the same population. the entire data set therefore included a total of 48 independent transcript assays covering seven Drosophila species in the D.melanogaster subgroup

2008-06-16 | E-GEOD-7873 | biostudies-arrayexpress

Small RNAs from four Drosophila melanogaster-subgroup species

Project description:Curration of small RNAs from four melanogaster-subgroup species (Drosophila simulans, Drosophila sechellia, Drosophila erecta, and Drosophila yakuba) for the purpose of non-coding RNA annotation and comparative genomics assessment. Non-replicated small RNA samples from four melanogaster-subgroup species.

2014-07-22 | E-GEOD-56244 | biostudies-arrayexpress

Small RNAs from four Drosophila melanogaster-subgroup species

2014-07-22 | GSE56244 | GEO

Comparison of D. simulans/D. mauritiana F1 third instar male larvae hybrid 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 F1 hybrid male third instar larvae of Drosophila simulans and its sibling species, D. mauritiana. We analyzed hybrids using custom cDNA arrays we developed from RT-PCRs of spermatogenesis-related transcripts from these species and another sibling species (D. sechellia). The results from a commercial genome-wide array and custom chip for adults of this species pair, from the custom chip and the genome-wide chip for adults of the D. simulans-D. sechellia species pair, and from the larvae of the D. simulans-D. sechellia species pair, are presented separately. Keywords: Comparison of pure-species Drosophila expression to hybrid expression

2006-09-13 | GSE5592 | GEO

Comparison of D. simulans/D. sechellia third instar male larvae hybrid expression values to pure-species larvae 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 F1 hybrid male third instar larvae of Drosophila simulans and its sibling species, D. sechellia. We analyzed hybrids using custom cDNA arrays we developed from RT-PCRs of spermatogenesis-related transcripts from these species and another sibling species (D. mauritiana). The results from a commercial genome-wide array and custom chip for adults of this species pair, from the custom chip and the genome-wide chip for adults of the D. simulans-D. mauritiana species pair, and from the larvae of the D. simulans-D. mauritiana species pair, are presented separately. Keywords: Comparison of pure-species Drosophila expression to hybrid expression in larvae

2006-09-13 | GSE5598 | GEO

Expression divergence of chemosensory genes between Drosophila sechellia and its sibling species and its implications for host shift [Dsim JP]

Project description:Drosophila simulans relies exclusively on the fruits of Morinda citrifolia, which are toxic to most insects, including its sibling species D. melanogaster and D. simulans. Although several odorant binding protein (Obp) genes and olfactory receptor (Or) genes were suggested to be associated with the D. simulans host shift, a broad view of how chemosensory genes have contributed to this shift is still lacking. We therefore studied the antennal transcriptomes, the main organ responsible for detecting food resource and oviposition, of D. simulans and its two sibling species. We wanted to know whether gene expression, particularly chemosensory genes, has diverged between D. simulans and its two sibling species. Using a very stringent definition of differential gene expression, we found 147 genes (including 11 chemosensory genes) were up-regulated while only 81 genes (including 5 chemosensory genes) were down-regulated in D. simulans. Interestingly, Obp50a exhibited the highest up-regulation, a ~100 fold increase, and Or85c – previously reported to be a larva-specific gene– showed ~20 fold up-regulation in D. simulans. Furthermore, Ir84a, proposed to be associated with male courtship behavior, is significantly up-regulated in D. simulans. We also found expression divergence in most of the receptor gene families between D. simulans and the two sibling species. Our observations suggest that the host shift of D. simulans is associated with expression profile divergence in all chemosensory gene families and is achieved mostly by up-regulation of chemosensory genes.

2015-10-01 | GSE67862 | GEO

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

Comparison of D. simulans/D. mauritiana 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. mauritiana. 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. sechellia 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 | GSE5601 | GEO

Comparison of D. simulans/D. sechellia F1 male hybrid custom 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 custom cDNA arrays we developed from RT-PCRs of spermatogenesis-related transcripts from these species and another sibling species (D. mauritiana). The results from a commercial genome-wide array for this species pair, from the custom chip and the genome-wide chip for the D. simulans-D. mauritiana species pair, and from the larvae of these two species pairs using the custom chip, is presented separately. Keywords: Comparison of pure-species Drosophila expression to hybrid expression

2006-09-13 | GSE5600 | GEO

Comparison of D. simulans/D. mauritiana F1 male hybrid custom 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. mauritiana. We analyzed hybrids using custom cDNA arrays we developed from RT-PCRs of spermatogenesis-related transcripts from these species and another sibling species (D. sechellia). The results from a commercial genome-wide array for this species pair, from the custom chip and the genome-wide chip for the D. simulans-D. sechellia species pair, and from the larvae of these two species pairs using the custom chip, is presented separately. Keywords: Comparison of pure-species Drosophila expression to hybrid expression

2006-09-13 | GSE5599 | GEO

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