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Pleiotropic effects of trans-regulatory mutations on fitness and gene expression.

ABSTRACT: Variation in gene expression arises from cis- and trans-regulatory mutations, which contribute differentially to expression divergence. We compare the impacts on gene expression and fitness resulting from cis- and trans-regulatory mutations in Saccharomyces cerevisiae, with a focus on the TDH3 gene. We use the effects of cis-regulatory mutations to infer effects of trans-regulatory mutations attributable to impacts beyond the focal gene, revealing a distribution of pleiotropic effects. Cis- and trans-regulatory mutations had different effects on gene expression with pleiotropic effects of trans-regulatory mutants affecting expression of genes both in parallel to and downstream of the focal gene. The more widespread and deleterious effects of trans-regulatory mutations we observed are consistent with their decreasing relative contribution to expression differences over evolutionary time.

SUBMITTER: Vande Zande P

PROVIDER: S-EPMC9569154 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Pleiotropic effects of trans-regulatory mutations on fitness and gene expression.

Vande Zande Pétra P Hill Mark S MS Wittkopp Patricia J PJ

Science (New York, N.Y.) 20220630 6601

Variation in gene expression arises from cis- and trans-regulatory mutations, which contribute differentially to expression divergence. We compare the impacts on gene expression and fitness resulting from cis- and trans-regulatory mutations in <i>Saccharomyces cerevisiae</i>, with a focus on the <i>TDH3</i> gene. We use the effects of cis-regulatory mutations to infer effects of trans-regulatory mutations attributable to impacts beyond the focal gene, revealing a distribution of pleiotropic effe ...[more]

PMID: 35771906

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Pleiotropic effects of trans-regulatory mutations on gene expression and fitness

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