Project description:Comparative genomic hybridization experiments comparing DNA from experimentally evolved yeast strains to DNA from a euploid control.
Project description:Haploid, diploid, and tetraploid yeast were experimentally evolved in 2% raffinose medium. After 250 generations, we assessed the gene expression alterations in 2 evolved haploids, 2 evolved diploids, and 4 evolved tetraploids relative to the diploid ancestor.
Project description:Understand the mechanisms of evolution in large-scale bio-production by tracking population dynamics leading to production decline in mevalonic acid-producing Escherichia coli. Industrial bioproduction entails growth of the production host to large bioreactors (e.g. 1-300 m3). This may put the organism at risk for generating non-producing subpopulations of genetic heterogeneity, which is not phenotypically detected at lab-scale (e.g. 2 L). To study these dynamics, we experimentally simulated these growth durations by passing mevalonic acid-producing E. coli to maintain the populations in exponential growth for 45 generations.
