Sökning: "Effective population size"

Visar resultat 1 - 5 av 80 avhandlingar innehållade orden Effective population size.

  1. 1. Population Genetic Methods and Applications to Human Genomes

    Författare :Lucie Gattepaille; Mattias Jakobsson; Kevin Thornton; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Population genetics; Human evolution; Genetic diversity; Genetic differentiation; Adaptation; Population structure; Effective population size; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Population Genetics has led to countless numbers of fruitful studies of evolution, due to its abilities for prediction and description of the most important evolutionary processes such as mutation, genetic drift and selection. The field is still growing today, with new methods and models being developed to answer questions of evolutionary relevance and to lift the veil on the past of all life forms. LÄS MER

  2. 2. Genetic variation in structured populations

    Författare :Marina Rafajlovic; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; genetic variation; varying population size; effective population size; mutation; recombination; migration; multiple paternity; geographic structure; tests of neutrality; gene tree; species tree;

    Sammanfattning : It is widely acknowledged that the process of speciation in the presence of gene flow between different ecotypes is common in nature. However, the mechanisms underlying speciation are not understood. LÄS MER

  3. 3. Monitoring gene level biodiversity - aspects and considerations in the context of conservation

    Författare :Johan Charlier; Linda Laikre; Nils Ryman; Kjetil Hindar; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; brown trout; conservation genetics; genetic drift; genetic monitoring; effective population size; moose; one-sample approach; spatial genetic structure; statistical power; temporal data; populationsgenetik; Population Genetics;

    Sammanfattning : The objectives of this thesis relate to questions needed to be addressed in the context of genetic monitoring for implementing the Convention on Biological Diversity for the gene level. Genetic monitoring is quantifying temporal changes in population genetic metrics. LÄS MER

  4. 4. Genomic analysis of the process leading up to the extinction of the woolly mammoth

    Författare :Patrícia Pečnerová; Love Dalén; Mark Thomas; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; woolly mammoth; Mammuthus primigenius; extinction; Wrangel Island; ancient DNA; palaeogenetics; population genetics; genomics; genomic erosion; genetic drift; inbreeding; population size; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Sammanfattning : Species worldwide are subject to contractions in both abundance and geographical range, and their persistence in a changing environment may thus depend on the ability to survive in small and fragmented populations. Despite the urgent need to understand how extinction works, our knowledge of pre-extinction genetic processes is limited because techniques allowing population and conservation genomics to be studied in wild threatened populations have become available only recently. LÄS MER

  5. 5. Genomic dynamics over contemporary time frames in wild salmonid populations

    Författare :Sara Kurland; Linda Laikre; Kathryn Elmer; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Conservation genomics; genetic monitoring; whole-genome sequencing; metapopulation; salmonid; brown trout; effective population size; Pool-seq; genetic connectivity; intraspecific diversity; sympatric populations; populationsgenetik; Population Genetics;

    Sammanfattning : Genetic diversity is the foundation of all biological variation. An approach for sustainable use and protection of genetic diversity is continuous sampling over space and time, i.e. monitoring. LÄS MER