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Showing result 1 - 5 of 41 swedish dissertations matching the above criteria.
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1. Mating type switching and transcriptional silencing in Kluyveromyces lactis
Abstract : To explore the similarities and differences of regulatory circuits among budding yeasts, we characterized the role of unscheduled meiotic gene expression 6 (UME6) and a novel mating type switching pathway in Kluyveromyces lactis. We found that Ume6 was required for transcriptional silencing of the cryptic mating-type loci HMLα and HMRa. READ MORE
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2. Regulation and mechanism of mating-type switching in Kluyveromyces lactis
Abstract : Transposable elements (TEs) have had immense impact on the structure, function and evolution of eukaryotic genomes. The work in this thesis identified Kat1, a novel domesticated DNA transposase of the hAT family in the yeast Kluyveromyces lactis. Kat1 triggers a genome rearrangement that results in a switch of mating type from MATa to MATα. READ MORE
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3. On the Evolution of Reproductive Systems in Neurospora
Abstract : The aim of this thesis was to study the evolution of reproductive systems and reproductive traits in the fungal genus Neurospora. More specifically, I have investigated the evolutionary forces shaping the genes involved in sexual reproduction, focusing on mating-type (mat) and pheromone receptor (pre) genes. READ MORE
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4. Reproductive isolation at contact zones
Abstract : Speciation is among the most important evolutionary processes that contribute to biodiversity. It involves the formation of new species that have become reproductively isolated through a process that is not linear and varies in time and space. READ MORE
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5. Positional regulation of mating-type genes in the fission yeast
Abstract : .... READ MORE