Metapopulation dynamics and the influence of the killer system in a natural S. cerevisiae population
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Date
2022-09-16Type
- Bachelor Thesis
ETH Bibliography
yes
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Abstract
Populations and their genetic makeup are ever changing. Metapopulations of interconnected small populations, observed over many years, can give us an insight into large-scale shifts in their genetic composition. Here we use a natural metapopulation of Saccharomyces cerevisiae to explore changes in its genetic composition over time. We further examine a possible cause for genetic shifts using the killer-yeast system. We found a large turnover of genotypes over the course of four years with initially few dominant genotypes being replaced by a greater diversity over time. An analysis of dsRNA viruses encoding the killer-yeast genes showed strong changes over time and space. We show partial success with the standard methods to examine the killer-yeast system but also reveal the limits of the current killer assay method when applied on a larger assemblage of natural populations. Show more
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https://doi.org/10.3929/ethz-b-000644812Publication status
publishedContributors
Examiner: Jokela, Jukka![cc](/themes/Mirage2//images/orcid_icon.png)
Examiner: Buser Moser, Claudia
![cc](/themes/Mirage2//images/orcid_icon.png)
Examiner: Travers Cook, Thomas J.
Publisher
ETH ZurichSubject
killer yeast; metapopulationOrganisational unit
03705 - Jokela, Jukka / Jokela, Jukka
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ETH Bibliography
yes
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