Project description:We used DamID-seq to analyze the genome-wide binding patterns of the group B Sox proteins Dichaete and SoxNeuro in four species of Drosophila: D. melanogaster, D. simulans, D. yakuba and D. pseudoobscura. Both binding site turnover between species and a comparison of the binding properties of the two partially-redundant transcription factors were analyzed. We found that, despite widespread turnover, genomic intervals that are commonly bound by both Dichaete and SoxNeuro are highly conserved in Drosophila.
Project description:We used DamID-seq to analyze the genome-wide binding patterns of the group B Sox proteins Dichaete and SoxNeuro in four species of Drosophila: D. melanogaster, D. simulans, D. yakuba and D. pseudoobscura. Both binding site turnover between species and a comparison of the binding properties of the two partially-redundant transcription factors were analyzed. We found that, despite widespread turnover, genomic intervals that are commonly bound by both Dichaete and SoxNeuro are highly conserved in Drosophila. DamID for Dichaete (Dichaete-Dam) was performed in D. melanogaster, D. simulans, D. yakuba and D. pseudoobscura, while DamID for SoxNeuro (SoxN-Dam) was performed in D. melanogaster and D. simulans. The control experiment, Dam-only, was performed in all species. Three biological replicates were sequenced for each condition in each species.
Project description:In this study, we look at both targeted and untargeted metabolomic data from both sexes and 11 species of Drosophila. For the targeted analysis, we also looked at two ages to understand conserved changes with age in the Drosophila genus.
Project description:We report the evolutionary behaviour of Polycomb group proteins, their recruitment factors and their underlying sequences by performing ChIP-seq analysis in 4-5 different Drosophila species. We demonstrate an extremely high conservation of Polycomb repressive domains across Drosophila species We validate few cases of PRE divergence that shows that cis-driven PRE evolution is a rare event. We further show that PHO recruitment to Polycomb domains is evolutionarily robust to motif changes and that PRC1 stabilizes binding of its key recruiter ChIP-seq analysis of histone marks and chromatin associated factors across 4-5 Drosophila species
Project description:We report the evolutionary behaviour of Polycomb group proteins, their recruitment factors and their underlying sequences by performing ChIP-seq analysis in 4-5 different Drosophila species. We demonstrate an extremely high conservation of Polycomb repressive domains across Drosophila species We validate few cases of PRE divergence that shows that cis-driven PRE evolution is a rare event. We further show that PHO recruitment to Polycomb domains is evolutionarily robust to motif changes and that PRC1 stabilizes binding of its key recruiter
Project description:We aim to determine the difference of protein expression in the closely related Drosophila species D.melanogaster and D.simulans to gain further insight into protein expression profiles of both species. Analysis of the protein levels might hint to pathways that have evolved into different direction and explain the separation of th species from their common ancestors. Further, we try to characterize novel gene isoform by combining RNA sequencing and proteomics.
