RT Journal Article SR Electronic T1 Fitness effects of cis-regulatory variants in the Saccharomyces cerevisiae TDH3 promoter JF bioRxiv FD Cold Spring Harbor Laboratory SP 154039 DO 10.1101/154039 A1 Fabien Duveau A1 William Toubiana A1 Patricia J. Wittkopp YR 2017 UL http://biorxiv.org/content/early/2017/08/02/154039.abstract AB Variation in gene expression is widespread within and between species, but fitness consequences of this variation are generally unknown. Here we use mutations in the Saccharomyces cerevisiae TDH3 promoter to assess how changes in TDH3 expression affect cell growth. From these data, we predict the fitness consequences of de novo mutations and natural polymorphisms in the TDH3 promoter. Nearly all mutations and polymorphisms in the TDH3 promoter were found to have no significant effect on fitness in the environment assayed, suggesting that the wild type allele of this promoter is robust to the effects of most new cis-regulatory mutations.