Search for dissertations about: "phylogenetic reconstruction"

Showing result 16 - 20 of 36 swedish dissertations containing the words phylogenetic reconstruction.

  2. 16. Mitochondrial Evolution : Turning Bugs into Features

    Author : Olof Karlberg; Siv Andersson; Michael Gray; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Biology; Biologi;

    Abstract : 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. READ MORE

  4. 17. Genomic Variation and Evolution of HERV-H and other Endogenous Retroviruses (ERVs)

    Author : Patric Jern; Jonas Blomberg; Michael Tristem; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; Endogenous Retrovirus ERV ; HERV-H; Phylogeny; Evolution; Sequence Variation; Polymorphism; Recent Integrations; Horizontal Transfer; Master Elements; Taxonomy; Mikrobiologi; Microbiology; immunology; infectious diseases; Mikrobiologi; immunologi; infektionssjukdomar;

    Abstract : An exogenous retrovirus (XRV) that integrates into a germ cell may be inherited as a Mendelian gene; it becomes an endogenous retrovirus (ERV). The human genome consists of up to 8% HERVs. The gammaretroviral (ERV class I) HERV-H, with 926 members, is the largest ERV group. READ MORE

  5. 18. Sociality in a solitary carnivore, the wolverine

    Author : Fredrik Dalerum; Anders Angerbjörn; Kyran Kunkel; Stanley Boutin; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sociality; carnivore; behaviour; ecology; spatial organisation; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : The social organization of animal societies has important implications for several fields of biology, from managing wild populations to developing new ecological and evolutionary theory. Although much attention has been given to the formation and maintenance of societies of group living individuals, less is known about how societies of solitary individuals have been shaped and maintained. READ MORE

  6. 19. Probabilistic Programming for Birth-Death Models of Evolution

    Author : Jan Kudlicka; Johannes Borgström; Thomas B. Schön; Lawrence M. Murray; Bret Larget; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; probabilistic programming; birth-death models; statistical phylogenetics; particle filters; sequential Monte Carlo SMC ; Computer Science; Datavetenskap;

    Abstract : Phylogenetic birth-death models constitute a family of generative models of evolution. In these models an evolutionary process starts with a single species at a certain time in the past, and the speciations—splitting one species into two descendant species—and extinctions are modeled as events of non-homogenous Poisson processes. READ MORE

  7. 20. Basal Vertebrate Divergences from a Molecular Perspective

    Author : Ann-Sofie Rasmussen; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mitochondrial genomes; Agnatha; Chondrichthyes; vertebrates; evolution; systematics; Genetics; cytogenetics; Genetik; cytogenetik;

    Abstract : Fishes (Superclass Pisces) constitute the most numerous and morphologically diverse vertebrate group, yet only a small fraction of all molecular evolutionary studies concern piscine evolution. This thesis aims to investigate the vertebrate tree, through the analysis of mitochondrial (mt) DNA sequences. READ MORE