Sökning: "phylogenetic tree"
Visar resultat 6 - 10 av 103 avhandlingar innehållade orden phylogenetic tree.
6. Probabilistic Modelling of Domain and Gene Evolution
Sammanfattning : Phylogenetic inference relies heavily on statistical models that have been extended and refined over the past years into complex hierarchical models to capture the intricacies of evolutionary processes. The wealth of information in the form of fully sequenced genomes has led to the development of methods that are used to reconstruct the gene and species evolutionary histories in greater and more accurate detail. LÄS MER
7. Molecular characterization and evolution of alpha-actinin : from protozoa to vertebrates
Sammanfattning : alpha-actinin is a ubiquitous protein found in most eukaryotic organisms. The ability to form dimers allows alpha-actinin to cross-link actin in different structures. In muscle cells alpha-actinin is found at the Z-disk of sarcomeres. LÄS MER
8. Molecules and morphology in Empidoidea (Diptera) : Phylogenetic analysis and taxonomical implications
Sammanfattning : The classification and evolutionary history of the superfamily Empidoidea (Diptera) have been far from straightforward subjects. Morphology based phylogenies of the superfamily have been unable to answer many questions raised by both systematists and biogeographers, as well as ecologists and ethologists, partly due to morphological modifications and adaptations difficult to interpret. LÄS MER
9. Exploration of microbial diversity and evolution through cultivation independent phylogenomics
Sammanfattning : Our understanding of microbial evolution is largely dependent on available genomic data of diverse organisms. Yet, genome-sequencing efforts have mostly ignored the diverse uncultivable majority in favor of cultivable and sociologically relevant organisms. LÄS MER
10. Species Delimitation and Phylogenetic Relationships. A study of Silene sections Atocion and Cryptoneurae
Sammanfattning : Abstract The existence of conflicting genealogies of different genes through the evolution of species complicates the inference of phylogenetic relationships. The Multispecies Coalescent (MSC) model provides a theoretical background that account for the stochasticity in the genealogical process, thus providing systematists with a potentially objective way of testing alternative hypotheses of putative species. LÄS MER