scholarly journals Variance in Epistasis Links Gene Regulation and Evolutionary Rate in the Yeast Genetic Interaction Network

2012 ◽  
Vol 4 (11) ◽  
pp. 1080-1087 ◽  
Author(s):  
Janna L. Fierst ◽  
Patrick C. Phillips
2017 ◽  
Vol 7 (5) ◽  
pp. 1539-1549 ◽  
Author(s):  
Matej Usaj ◽  
Yizhao Tan ◽  
Wen Wang ◽  
Benjamin VanderSluis ◽  
Albert Zou ◽  
...  

2021 ◽  
Author(s):  
Ryan C. Vignogna ◽  
Sean W. Buskirk ◽  
Gregory I. Lang

ABSTRACTUnderstanding how genes interact is a central challenge in biology. Experimental evolution provides a useful, but underutilized, tool for identifying genetic interactions, particularly those that involve non-loss-of-function mutations or mutations in essential genes. We previously identified a strong positive genetic interaction between specific mutations in KEL1 (P344T) and HSL7 (A695fs) that arose in an experimentally-evolved Saccharomyces cerevisiae population. Because this genetic interaction is not phenocopied by gene deletion, it was previously unknown. Using “evolutionary replay” experiments we identified additional mutations that have positive genetic interactions with the kel1-P344T mutation. We replayed the evolution of this population 672 times from six timepoints. We identified 30 populations where the kel1-P344T mutation reached high frequency. We performed whole-genome sequencing on these populations to identify genes in which mutations arose specifically in the kel1-P344T background. We reconstructed mutations in the ancestral and kel1-P344T backgrounds to validate positive genetic interactions. We identify several genetic interactors with KEL1, we validate these interactions by reconstruction experiments, and we show these interactions are not recapitulated by loss-of-function mutations. Our results demonstrate the power of experimental evolution to identify genetic interactions that are positive, allele specific, and not readily detected by other methods, and sheds light on a previously under-explored region of the yeast genetic interaction network.


2009 ◽  
Vol 37 (7) ◽  
pp. e54-e54 ◽  
Author(s):  
Gregory R. Stuart ◽  
William C. Copeland ◽  
Micheline K. Strand

2007 ◽  
Vol 8 (8) ◽  
pp. R160 ◽  
Author(s):  
R James Taylor ◽  
Andrew F Siegel ◽  
Timothy Galitski

mSphere ◽  
2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Jason M. Peters

ABSTRACT Jason M. Peters works in the fields of antibiotic resistance and biofuel production. In this mSphere of Influence article, he reflects on how the paper “A global genetic interaction network maps a wiring diagram of cellular function” by Costanzo et al. (Science 353:aaf1420, 2016, https://doi.org/10.1126/science.aaf1420) has impacted his work by highlighting the power of gene networks to uncover new biology.


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