Project description:S288C was transformed with plasmids expressing the GCN5 F221A mutant at varying levels. We sought to examine the global impact on gene expression using the Affymetrix yeast 2.0 arrays.
Project description:The aim of this project was to evaluate the ploidy of a S. cerevisiae *S. kudriavzevii hybrid in comparison to the lab strain S288C. Other wine yeast have been icluded in the project for the global analysis.
Project description:The thermotolerant TTY23, acid tolerant AT22, and thermo-acid tolerant TAT12 yeast strains, generated by adaptive evolution experiments were grown at 30°C, pH 5.0 in the absence of acetic acid (optimal ancestral conditions). The mRNA of each strain was isolated and changes in expression were compared against the parental strain S288C.
Project description:S288C was transformed with plasmids expressing the GCN5 F221A mutant at varying levels. We sought to examine the global impact on gene expression using the Affymetrix yeast 2.0 arrays. TEF promoter strength varied from 32, 68 and 95% of the wild-type expression. Controls included wild-type with empty & GCN5 null strain with empty plasmid. Strains were grown for approximately 7 dblings in triplicate, followed by a mid-log phase RNA extraction. Whole cell RNA was processed for Affymetrix yeast 2.0 arrays.
Project description:Effect of FLO8 or MSS11 deletion and -overexpression on yeast transcript profiles compared to wild type in laboratory yeast strains Σ1278b and S288c.
Project description:We study the genetics, including microarray karyotyping using comparative genomic hybridization, to explore global changes in the genomic DNA of seven S. cerevisiae strains related to traditional fermentations of very different sources comparing to the sequenced S. cerevisiae laboratory strain (S288C). Our final goal is to determine the adaptive evolution of properties of biotechnological interest in Saccharomyces yeasts. Many copy number variations (CNVs) were observed, especially in genes associated to subtelomeric regions and transposon elements. Among the fermentation strains, differential CNV was observed in genes related to sugar transport and metabolism. An outstanding example of diverse CNV is the gen PUT1, involved in proline assimilation, which correlated with the adaptation of the strains to the presence of this nitrogen source in the media.
Project description:We study the genetics, including microarray karyotyping using comparative genomic hybridization to explore global changes in the genomic DNA, of four S. bayanus var uvarum strains related to traditional fermentations of very different sources comparing to the sequenced S. cerevisiae laboratory strain (S288C). Our final goal is to determine the adaptive evolution of properties of biotechnological interest in Saccharomyces yeasts. Many copy number variations (CNV) were observed, especially in genes associated to subtelomeric regions and transposon elements. Among the fermentation strains, differential CNV was observed in genes related to sugar transport and metabolism. An outstanding example of diverse CNV is the gen PUT1, involved in proline assimilation, which correlated with the adaptation of the strains to the presence of this nitrogen source in the media.
