Search for dissertations about: "divergence"

Showing result 1 - 5 of 291 swedish dissertations containing the word divergence.

  1. 1. 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

  2. 2. Dating Divergence Times in Phylogenies

    University dissertation from Uppsala : Universitetsbiblioteket

    Author : Cajsa Lisa Anderson; Uppsala universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; systematic biology; divergence time; nonprametric rate smoothing; Bayesian; multidivtime; eudicots; Neoaves; monocots; dating; molecular clock; relaxed clock; age constraint; fossil; calibration; PATHd8; penalized likelihood; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : This thesis concerns different aspects of dating divergence times in phylogenetic trees, using molecular data and multiple fossil age constraints.Datings of phylogenetically basal eudicots, monocots and modern birds (Neoaves) are presented. Large phylograms and multiple fossil constraints were used in all these studies. READ MORE

  3. 3. Postmating Sexual Selection and its Role in Population Divergence in Beetles

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Claudia Fricke; Uppsala universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Callosobruchus maculatus; postmating sexual selection; speciation; laboratory selection experiment; divergence; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : Speciation is the process describing the formation of new species and is at the heart of evolutionary biology. According to the biological species concept only reproductively isolated forms are regarded good species. This thesis aims at identifying evolutionary processes that cause population divergence and, ultimately, speciation. READ MORE

  4. 4. Non-metrical divergence between skeletal populations : the theoretical foundation and biological importance of C. A. B. Smith's mean measure of divergence

    University dissertation from Solna : Stockholm University

    Author : Torstein Sjøvold; [1977]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : .... READ MORE

  5. 5. On Estimating Topology and Divergence Times in Phylogenetics

    University dissertation from Uppsala : Avdelningen för matematisk statistik

    Author : Bodil Svennblad; Uppsala universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Phylogenetics; Divergence Time; Likelihood based methods; Non-informative prior; bootstrap support; Matematisk statistik;

    Abstract : This PhD thesis consists of an introduction and five papers, dealing with statistical methods in phylogenetics.A phylogenetic tree describes the evolutionary relationships among species assuming that they share a common ancestor and that evolution takes place in a tree like manner. READ MORE