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Essay: Homothallic mating: a comparison of several mechanisms in yeasts

Zwarthoff, S.A. (2015) Essay: Homothallic mating: a comparison of several mechanisms in yeasts. Master's Thesis / Essay, Biology.

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Although yeasts mainly reproduce asexually, many species are also able to have sex under specific conditions. In order to reproduce sexually a yeast cell usually mates with a cell of opposite mating type (heterothallism), but some species were discovered to reproduce also with cells of the same sex (homothallism). The molecular mechanisms of heterothallic reproduction have been studied well in several yeasts which revealed a number of general principles, but the homothallic reproduction strategies are less examined. The switch from heterothallic to homothallic mating in model yeast Saccharomyces cerevisiae differs a lot from the switch in Candida albicans, which suggests a lack of general principles. In this essay, I compare the mechanisms of heterothallic and homothallic mating in several Ascomycota and try to find similarities that can help elucidating the sexual cycles in less studied yeasts in future. Based on this comparison I suggest a classification system for the homothallic mechanisms in yeasts.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Biology
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 08:02
Last Modified: 15 Feb 2018 08:02

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