Genetic complexity of adapting populations.

2014-01-09T03:15:18Z (GMT) by Jungeui Hong David Gresham
<p>A small number of point mutations rose to appreciable frequencies in each population with the exception of the allantoin-limited population, which contains ∼500 SNPs most of which have frequencies less than 10% (see <a href="" target="_blank">Table S2</a> and <a href="" target="_blank">Table S3</a>). This population also contains a mutant <i>MSH2</i> gene, suggesting the existence of a low frequency mutator phenotypes <a href="" target="_blank">[73]</a>, <a href="" target="_blank">[74]</a>. Nitrogen concentrations were normalized between environments by adjusting the concentration of each compound according to its molecular composition.</p>