Search for dissertations about: "Gene flow"

Showing result 1 - 5 of 278 swedish dissertations containing the words Gene flow.

  1. 1. Telomere analysis of normal and neoplastic hematopoietic cells studies focusing on fluorescence in situ hybridization and flow cytometry

    University dissertation from Umeå : Medicinsk biovetenskap

    Author : Magnus Hultdin; Umeå universitet.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biomedicine; telomere; telomerase; fluorescence in situ hybridization; flow cytometry; flow-FISH; replication timing; chronic lymphocytic leukemia; immunoglobulin gene; prognosis; Biomedicin; MEDICINE Microbiology; immunology; infectious diseases Microbiology; MEDICIN Mikrobiologi; immunologi; infektionssjukdomar Mikrobiologi; Medical Cell Biology; medicinsk cellbiologi;

    Abstract : The telomeres are specialized structures at the end of the chromosomes composed of the repeated DNA sequence (TTAGGG)n and specific proteins bound to the DNA. The telomeres protect the chromosomes from degradation and end to end fusions. READ MORE

  2. 2. Male and female selective mechanisms, reproductive success and gene flow

    University dissertation from Apelsin Publishing

    Author : Samuel Kiboi; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtekologi; Plant ecology; Cucumis sativus.; genetic marker; gene flow; reproduction; embryo abortion; resistance; maternal selection; sexual selection; pollen competition; selection;

    Abstract : In this thesis, I have studied male and female selective mechanisms that can affect plant reproductive success and gene flow. I have focussed on sexually selected traits, mainly pollen competition and maternal sorting mechanisms, for example through non-random ovule abortion. READ MORE

  3. 3. Genetic variation and gene flow in riparian populations of Filipendula ulmaria

    University dissertation from Sundsvall : Mittuniversitetet

    Author : Åsa Bång; Mittuniversitetet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Barriers; fragmentation; Filipendula ulmaria; Gene flow; genetic variation; hydrochory; pollen dispersal; riparian habitat; spatial genetic structure; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestrisk; limnisk och marin ekologi;

    Abstract : .... READ MORE

  4. 4. Genetic variation, clonal diversity and breeding system in sedges (Carex)

    University dissertation from Department of Systematic Botany, Östra Vallgatan 14-20, 223 61 Lund, Sweden

    Author : Olle Jonsson; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Systematic botany; Carex ericetorum; Carex caryophyllea; Carex bigelowii; Carex arenaria; phenology; niche; genet identification; clone size; isozyme; gene flow; introgression; allozyme; gene diversity; population genetics; taxonomy; morphology; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .;

    Abstract : In this thesis I investigate genetic variation in clonal plants within the wind-pollinated plant family Cyperaceae and, in particular, in species of Carex. Clonal diversity and the spatial distribution of clones (genets) within populations was investigated in Carex bigelowii (in Iceland and Scandinavia) and C. READ MORE

  5. 5. Cyanobacteria in symbiosis with boreal forest feathermosses from genome evolution and gene regulation to impact on the ecosystem

    University dissertation from Stockholm : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Author : Denis Warshan; Ulla Rasmussen; Elke Dittmann; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cyanobacteria; Feathermosses; Symbiosis; Boreal forest; Gene flow; Proteogenomic; Transcriptomic; Community structure and composition; Dinitrogen fixation; växtfysiologi; Plant Physiology;

    Abstract : Among dinitrogen (N2)-fixing some cyanobacteria can establish symbiosis with a broad range of host plants from all plant lineages including bryophytes, ferns, gymnosperms, and angiosperms. In the boreal forests, the symbiosis between epiphytic cyanobacteria and feathermosses Hylocomium splendens and Pleurozium schreberi is ecologically important. READ MORE