Sökning: "genome evolution"

Visar resultat 1 - 5 av 241 avhandlingar innehållade orden genome evolution.

  1. 1. Modeling Genome Evolution Creation, Change and Destruction

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mats Pettersson; Uppsala universitet.; [2007]
    Nyckelord :Molecular biology; Theotretical biology; Population genetics; Stochastic modeling; Genome evolution; Molekylärbiologi;

    Sammanfattning : Historically, evolution has been studied either by looking at morphological traits in living organisms and the fossil record, or by using bioinformatics and comparative genomics. While highly useful for deducing evolutionary history, these approaches are not particularly well suited for studying the mechanisms of evolution. LÄS MER

  2. 2. Genome Evolution and Host Adaptation in Bartonella

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Eva Caroline Berglund; Uppsala universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bartonella; genome evolution; genome diversity; phage; gene transfer agent; secretion system; microarray; NATURAL SCIENCES Biology Other biology Bioinformatics; NATURVETENSKAP Biologi Övrig biologi Bioinformatik; Evolutionary Genetics; evolutionär genetik;

    Sammanfattning : Bacteria of the genus Bartonella infect the red blood cells of a wide range of wild and domestic mammals and are transmitted between hosts by blood-sucking insects. Although most Bartonella infections are asymptomatic, the genus contains several human pathogens. LÄS MER

  3. 3. Biased Evolution Causes and Consequences

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Gerrit Brandis; Uppsala universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Evolution; Codon usage bias; Post-transcriptional regulation; Recombination; Inversion; EF-Tu; Frameshift suppression; Antibiotic resistance; Rifampicin; Ciprofloxacin; Compensatory evolution; Drug efflux; RNA polymerase; DNA gyrase; Mikrobiologi; Microbiology;

    Sammanfattning : In evolution alternative genetic trajectories can potentially lead to similar phenotypic outcomes. However, certain trajectories are preferred over others. These preferences bias the genomes of living organisms and the underlying processes can be observed in ongoing evolution. LÄS MER

  4. 4. Lifestyle and Genome Evolution in Vector-Borne Bacteria A Comparison of Three Bartonella Species

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anna Carolin Frank; Uppsala universitet.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Bartonella; evolution; host-restriction; vector-borne; horizontal gene transfer; genome reduction; alpha-proteobacteria; Type-IV secretion; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Sammanfattning : Bacterial genomes provide records of the molecular processes associated with emergence and evolution of different bacterial lifestyles. This thesis is based on whole-genome comparisons within the genus Bartonella, an excellent model system for studies of host- and vector-specificity and infection outcome in animal-associated bacteria. LÄS MER

  5. 5. Mitochondrial Evolution Turning Bugs into Features

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Olof Karlberg; Uppsala universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Sammanfattning : The bacterial origin of mitochondria from an ancient endosymbiosis is now widely accepted and the mitochondrial ancestor is generally believed to belong to the bacterial subdivision α-proteobacteria. The high fraction of mitochondrial proteins encoded in the nucleus has commonly been explained with a massive transfer of genes from the genome of the ancestral mitochondrion. LÄS MER