Search for dissertations about: "Experimental evolution"

Showing result 1 - 5 of 344 swedish dissertations containing the words Experimental evolution.

  1. 1. Experimental Evolution and Fitness Effects of Mutations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Anna Knöppel; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Experimental evolution; Fitness effects; mutations; S20; fis; ribosome; horizontal gene transfer; adaptation; synonymous mutations; Mikrobiologi; Microbiology;

    Abstract : Bacteria have small, streamlined genomes and evolve rapidly. Their large population sizes allow selection to be the main driver of evolution. With advances in sequencing technologies and precise methods for genetic engineering, many bacteria are excellent models for studying elementary questions in evolutionary biology. READ MORE

  2. 2. Adaptive divergence in fission yeast From experimental evolution to evolutionary genomics

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sergio Ivan Tusso Gomez; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; adaptation; divergence; selection; experimental evolution; genomics; genome evolution; population genetics; fission yeast; phenotypic variation; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Abstract : How adaptation and population differentiation occur is fundamental to understand the origin of biodiversity. Work in speciation alongside the increased ease of generating genomic data have allowed the exploration of genomic changes relevant to adaptation. READ MORE

  3. 3. Experimental Evolution of Life-history Testing the Evolutionary Theories of Ageing

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hwei-yen Chen; Uppsala universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; senescence; ageing; longevity; mortality; experimental evolution; Caenorhabditis remanei; Biologi; Biology;

    Abstract : Ageing reduces fitness, but how ageing evolves is still unclear. Evolutionary theory of ageing hinges on the fundamental principal that the force of natural selection declines with age. READ MORE

  4. 4. Ecology and Evolution of Resistance to Herbivory Trichome Production in Arabidopsis lyrata

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Geir Løe; Högskolan i Gävle.; Uppsala universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant-animal interactions; herbivory; trichomes; plant resistance; plant defense; divergent selection; local adaptation; GLABROUS1; evolution; matrix population models; LTRE; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; Biology; Biologi;

    Abstract : In this thesis, I examine variation in occurrence and performance of glabrous and trichome-producing plants of the perennial herb Arabidopsis lyrata. I combine field studies and genetic analysis to (1) examine the function of trichomes as a resistance character in natural populations, (2) compare the magnitude of population differentiation in trichome-production and at putatively neutral marker loci, (3) examine the molecular genetic basis of trichome-production, and (4) quantify the effects of herbivore removal on population growth and relative performance of glabrous and trichome-producing plants. READ MORE

  5. 5. HIV-1 evolution, disease progression and molecular epidemiology of HIV-1 single and HIV-1 and HIV-2 dual-infected individuals in Guinea-Bissau

    University dissertation from Lund University

    Author : Joakim Esbjörnsson; Lund University.; Lunds universitet.; [2010]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV-1; HIV-2; Guinea-Bissau; subtype; disease progression; evolution; coreceptor tropism; CXCR4; gp120; V1-V3; CD4%; CD8%; soluble immune markers;

    Abstract : The two genetically related human lentiviruses known today, HIV-1 (which is pandemic) and HIV-2 (which mainly is confined to West Africa), are the causative agents of AIDS. Progressive immune dysfunction and AIDS develop in most cases of untreated HIV-1 infection, but only in approximately 25-30% of HIV-2 infected individuals. READ MORE