Related Experiment Video
Updated: Jan 20, 2026
Reproduction of Saccharomyces cerevisiae: Sexual & Asexual
Published on: April 30, 2023
Asexual reproduction reduces transposable element load in experimental yeast populations
Jens Bast1, Kamil S Jaron1,2, Donovan Schuseil1
1Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Abstract:
Theory predicts that sexual reproduction can either facilitate or restrain transposable element (TE) accumulation by providing TEs with a means of spreading to all individuals in a population, versus facilitating TE load reduction via purifying selection. By quantifying genomic TE loads over time in experimental sexual and asexual Saccharomyces cerevisiae populations, we provide direct evidence that TE loads decrease rapidly under asexual reproduction. We show, using simulations, that this reduction may occur via evolution of TE activity, most likely via increased excision rates. Thus, sex is a major driver of genomic TE loads and at the root of the success of TEs.
Related Concept Videos
Yeast Reproduction
Asexual Reproduction
07:59Ultrasonography in Experimental Reproductive Investigations on Rats
Conservation of Small Populations
Yeast Signaling
10:33Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure
