December 12, 2025 Seminar - Dr. Sergey Kryazhimskiy

Sergey Kryazhimskiy

Dr. Sergey Kryazhimskiy

Associate Professor
University of California, San Deigo, Department of Ecology, Behaviour, & Evolution

PI: Prof. Alex Nguyen

12 to 1 PM
IB 140 & Zoom

Title

Global epistasis and some side effects of adaptation

Abstract

Adaptive evolution can lead to profound changes in the phenotypes and behaviors of biological systems, with adverse or beneficial consequences. However, predicting these changes remains difficult. One major challenge is that how new mutations alter phenotypes and fitness of organisms often depends on the genetic background in which they arise (G×G interactions or “epistasis”), the environment (G×E interactions), or both (G×G×E interactions). In this talk, I will discuss our recent experimental efforts to measure these interactions in budding yeast and some implications of our findings for evolutionary dynamics. 

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