Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1107929 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR28899700_1.fastq.gz | Fastqsanger.gz | |||
| SRR28899700_2.fastq.gz | Fastqsanger.gz | |||
| SRR28899601_1.fastq.gz | Fastqsanger.gz | |||
| SRR28899601_2.fastq.gz | Fastqsanger.gz | |||
| SRR28899701_1.fastq.gz | Fastqsanger.gz |
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Project description:Transcriptional profiling of four different yeast FZF1 alleles: S. cerevisiae, S. paradoxus and two reciprocal chimeras with the coding and 5' noncoding region from opposite species of S. cerevisiae and S. paradoxus, both before and 15 minutes after sulfite addition. FZF1 is a transcription factor that is known to be turned on in response to sulfite. Here we determine whether the FZF1 allele from two species leads to different transcriptional responses and the effect of the individual noncoding and coding regions on the transcriptional response.
2012-05-01 | GSE35308 | GEO
Project description:Transcriptional profiling of four different yeast FZF1 alleles: S. cerevisiae, S. paradoxus and two reciprocal chimeras with the coding and 5' noncoding region from opposite species of S. cerevisiae and S. paradoxus, both before and 15 minutes after sulfite addition. FZF1 is a transcription factor that is known to be turned on in response to sulfite. Here we determine whether the FZF1 allele from two species leads to different transcriptional responses and the effect of the individual noncoding and coding regions on the transcriptional response. Two-color experiment, 4 Strains x 2 Timepoints each compared to a reference pool made up of all samples. 3 Biologic replicates. With dye-swaps
2012-04-30 | E-GEOD-35308 | biostudies-arrayexpress
Project description:Copper tolerance and sulfite tolerance are two well-studied phenotypic traits of Saccharomyces cerevisiae. The genetic bases of these traits are derived from allelic expansion at the CUP1 locus and reciprocal translocation at the SSU1 locus, respectively. Previous work identified a negative association between sulfite and copper tolerance in S. cerevisiae wine yeasts. Here we probe the relationship between sulfite and copper tolerance and show that an increase in CUP1 copy number does not impart copper tolerance in all S. cerevisiae wine yeast. Bulk-segregant QTL analysis was used to identify variance at SSU1 as a causative factor in copper sensitivity, which was verified by reciprocal hemizygosity analysis in a strain carrying 20 copies of CUP1. Transcriptional and proteomic analysis demonstrated that SSU1 over-expression did not suppress CUP1 transcription or constrain protein production but suggested that SSU1 overexpression induced sulfur limitation during exposure to copper. Finally, an SSU1 over-expressing strain exhibited increased sensitivity to moderately elevated copper concentrations in sulfur-limited medium, demonstrating that SSU1 over-expression burdens the sulfate assimilation pathway. Over-expression of MET 3/14/16, genes upstream of H2S production in the sulfate assimilation pathway increased the production of SO2 and H2S but did not improve copper sensitivity in an SSU1 overexpressing background. We conclude that copper and sulfite tolerance are conditional traits in S. cerevisiae and provide evidence of the metabolic basis for their mutual exclusivity. These findings suggest an evolutionary basis for the extreme amplification of CUP1 observed in some yeasts.
2023-03-22 | PXD037997 | Pride
Project description:We set out to determine how Sfp1 binding targets evolved over time. We sampled our species of interest to include one pre-whole genome duplicaton (WGD) species containing SFP1A (K. lactis), one post-WGD species containing both SFP1 and SFP1PL (N. castellii), two post-WGD species containing only SFP1 (S. cerevisiae and S. paradoxus) and performed ChIP for each Sfp1 homolog in each species using an antibody that recognizes a conserved subdomain of Sfp1 common to both Sfp1, Sfp1a, and Sfp1pl. Because Sfp1pl was also present in N. castellii, a second antibody was used that is more specific to Sfp1pl (denoted as IP3). We also performed ChIP in SFP1 deletion mutants in each species tested, as a control."
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Project description:Multi-genome, time series transcriptome measurements across the budding yeast cell cycle 378 genome-wide microarray measurements, 18 timepoints, nine strains of S. cerevisiae and one strain of S. paradoxus
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Project description:Chromatin accessibility is an important functional genomics phenotype that influences transcription factor binding and gene expression. Genome-scale technologies allow chromatin accessibility to be mapped with high-resolution, facilitating detailed analyses into the genetic architecture and evolution of chromatin structure within and between species. We performed Formaldehyde-Assisted Isolation of Regulatory Elements sequencing (FAIRE-Seq) to map chromatin accessibility in two parental haploid yeast species, Saccharomyces cerevisiae and Saccharomyces paradoxus and their diploid hybrid. We show that although broad-scale characteristics of the chromatin landscape are well conserved between these species, accessibility is significantly different for 947 regions upstream of genes that are enriched for GO terms such as intracellular transport and protein localization exhibit. We also develop new statistical methods to investigate the genetic architecture of variation in chromatin accessibility between species, and find that cis effects are more common and of greater magnitude than trans effects. Interestingly, we find that cis and trans effects at individual genes are often negatively correlated, suggesting widespread compensatory evolution to stabilize levels of chromatin accessibility. Finally, we demonstrate that the relationship between chromatin accessibility and gene expression levels is complex, and a significant proportion of differences in chromatin accessibility might be functionally benign. There are 20 samples in total. These consist of 10 FAIRE-seq samples, specifically 6 haploid samples, S. cerevisiae strain UWOPS05_217_3 replicates 1 and 2, S. cerevisiae strain DBVPG1373 replicates 1 and 2, and S. paradoxus strain CBS432 replicates 1 and 2. There are also 4 diploid hybrid samples, hybrid between S. cerevisiae strain UWOPS05_217_3 and S. paradoxus strain CBS432 replicates 1 and 2, and the hybrid between S. cerevisiae strain DBVPG1373 and S. paradoxus strain CBS432 replicates 1 and 2. There are also RNA-seq samples for each of these 10 samples.
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Project description:One of the essential or beneficial micronutrient for plants and animals is boron that is an ultra-trace element. Although boron can inhibit the growth of Saccharomyces cerevisiae around 80 mM, it is also a growth supplement. However, little information is currently available regarding the molecular mechanisms and essentiality of boron. In this paper, the approach was to generate S. cerevisiae mutants with high boron resistance by using evolutionary engineering strategy that was previously applied successfully. Boron-resistant S. cerevisiae mutants were obtained and their phenotypic and physiological characteristics were determined. In order to identify the molecular mechanisms implicated in boron resistance, the whole transcriptomes and genome sequence analysis of wild type and one of the most resistant mutants were compared.
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Project description:AB SOLID sequencing of ribosome-depleted RNA from S. Cerevisiae, S. Paradoxus, S. Mikatae, and S. Bayanus These four yeast species were grown in complete media and total RNA was sequenced.
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Project description:Primary objectives: The primary objective is to investigate circulating tumor DNA (ctDNA) via deep sequencing for mutation detection and by whole genome sequencing for copy number analyses before start (baseline) with regorafenib and at defined time points during administration of regorafenib for treatment efficacy in colorectal cancer patients in terms of overall survival (OS).
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