Sökning: "evolutionsbiologi"

Visar resultat 11 - 15 av 360 avhandlingar innehållade ordet evolutionsbiologi.

  1. 11. The evolution of sexual dimorphism and its genetic underpinnings

    Författare :Philipp Kaufmann; Elina Immonen; Tim Connallon; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Sexual conflict; sex-specific dominance; maintenance of genetic variance; sexual antagonism; sex chromosomes; Y haplotypes; artificial selection; sexual dimorphism; Callosobruchus maculatus; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Sexual dimorphism often constitutes the largest phenotypic variance within species but it is puzzling how sexual dimorphisms evolve because most of the genome is shared between the sexes. Sexually antagonistic (SA) selection on a shared genome sets the stage for intralocus sexual conflict. LÄS MER

  3. 12. Fungal molecular ecology in boreal forests and challenges associated with unidentified environmental DNA sequences

    Författare :Kerri Kluting; Anna Rosling; Martin Ryberg; Sara Branco; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; amplicon sequence variant ASV ; Archaeorhizomycetes; environmental DNA sequencing; high-throughput sequencing; integrative taxonomy; pine forest; podzol soil profile; Pucciniomycotina; Tomicus piniperda; voucherless specimens; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Sammanfattning : Many fungi are characteristically difficult to observe and collect, making the process of documenting the world’s fungal diversity challenging. The vast majority of fungal species are undescribed. LÄS MER

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

    Författare :Axel Künstner; Hans Ellegren; Hanna Johannesson; Chris Ponting; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 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;

    Sammanfattning : 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. LÄS MER

  5. 14. Inferring Evolutionary Processes of Humans

    Författare :Sen Li; Mattias Jakobsson; Ludovic Orlando; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Approximate Bayesian Computation; TMRCA; demography; human evolution; Bantu-Expansion; Out-of-Africa;

    Sammanfattning : More and more human genomic data has become available in recent years by the improvement of DNA sequencing technologies. These data provide abundant genetic variation information which is an important resource to help us to understand the evolutionary history of humans. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER