Search for dissertations about: "Hanna Johannesson"

Showing result 1 - 5 of 12 swedish dissertations containing the words Hanna Johannesson.

  2. 1. Drivers of evolutionary change in Podospora anserina

    Author : Sandra Lorena Ament-Velásquez; Hanna Johannesson; Bengt Olle Bengtsson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Podospora; Meiotic drive; Spore killing; vegetative incompatibility; heterokaryon incompatibility; allorecognition; speciation; Transposable elements; selfish genetic elements; fungi; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Abstract : Genomic diversity is shaped by a myriad of forces acting in different directions. Some genes work in concert with the interests of the organism, often shaped by natural selection, while others follow their own interests. The latter genes are considered “selfish”, behaving either neutrally to the host, or causing it harm. READ MORE

  4. 2. Neurospora tetrasperma from Natural Populations : Toward the Population Genomics of a Model Fungus

    Author : Pádraic Corcoran; Hanna Johannesson; Sylvain Glemin; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Neurospora; poulation genetics; genomes; introgression; Evolutionary Genetics; Evolutionär genetik;

    Abstract : The study of DNA sequence variation is a powerful approach to study genome evolution, and to reconstruct evolutionary histories of species. In this thesis, I have studied genetic variation in the fungus Neurospora tetrasperma and other closely related Neurospora species. I have focused on N. READ MORE

  5. 3. Full circle : Rise and fate of genetic variation in Marasmius oreades fairy rings

    Author : Markus Hiltunen; Hanna Johannesson; Martin Ryberg; Jason Stajich; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; mushroom; fairy ring; Marasmius; mutation; fungi; genomics; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

    Abstract : Genetic variation is a prerequisite for evolution. The degree of variability within a species is governed by forces including mutation, recombination and selection. READ MORE

  6. 4. Birds as a Model for Comparative Genomic Studies

    Author : Axel Künstner; Hans Ellegren; Hanna Johannesson; Chris Ponting; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Birds; Selection; Gene expression; Sequence evolution; Next-generation sequencing; Comparative genomics; Molecular evolution; Genomics; Substitution Rates; Non-coding DNA; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Abstract : Comparative genomics provides a tool to investigate large biological datasets, i.e. genomic datasets. In my thesis I focused on inferring patterns of selection in coding and non-coding regions of avian genomes. READ MORE

  7. 5. Genomics of Arbuscular Mycorrhizal Fungi : Expanding knowledge, one assembly at a time

    Author : Merce Montoliu-Nerin; Anna Rosling; Hanna Johannesson; Nicolas Corradi; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; genomics; arbuscular mycorrhizal fungi; phylogenomics; DNA; evolution; Bioinformatics; Bioinformatik; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Abstract : Most life forms that inhabit Earth today are still unknown or are difficult to study. Accessing their DNA can give us information of their biology, ecology, and evolution, even when unculturable. The research here presented focused on method development for genomic research of non-model organisms. READ MORE