Search for dissertations about: "genetic structure"

Showing result 1 - 5 of 393 swedish dissertations containing the words genetic structure.

  1. 1. Population genetic analyses in the orchid genus Gymnadenia a conservation genetic perspective

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Susanne Gustafsson; Uppsala universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Genetic engineering; Orchidaceae; Gymnadenia; conservation; microsatellites; genetic structure; mating pattern; Genteknik; TECHNOLOGY Bioengineering Genetic engineering including functional genomics; TEKNIKVETENSKAP Bioteknik Genteknik inkl. funktionsgenomik; naturvårdsbiologi; Conservation Biology;

    Abstract : Small populations are facing a particular risk of extinction due to a lack of appropriate genetic diversity and associated negative effects, factors dealt with in the discipline of conservation genetics. Many orchid species exhibit characteristics that make them a perfect study object in the scope of conservation genetics. READ MORE

  2. 2. Genetic structure and dispersal in plant populations

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johan Fogelqvist; Uppsala universitet.; [2008]
    Keywords : population genetics; dispersal; structure; plant; gene flow;

    Abstract : This thesis focuses on the spatial structure and methods to identify spatial structure in plants.Methods that investigate genetic structure can mainly be divided into equilibrium methods that reveal summed dispersal over many generations, and cluster methods, that reveal more recent dispersal events. READ MORE

  3. 3. Genetic Disequilibria and the Interpretation of Population Genetic Structure in Daphnia

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Lars M. Berg; Uppsala universitet.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; breeding system; linkage disequilibrium; dispersal; genetic structure; Daphnia pulex; Utvecklingsbiologi; NATURAL SCIENCES Biology Organism biology Developmental biology; NATURVETENSKAP Biologi Organismbiologi Utvecklingsbiologi; naturvårdsbiologi; Conservation Biology;

    Abstract : Understanding the processes that shape the spatial distribution of genetic variation within species is central to the evolutionary study of diversification and demography. Neutral genetic variation reflects past demographic events as well as current demographic characteristics of populations, and the correct interpretation of genetic data requires that the relative impact of these forces can be identified. READ MORE

  4. 4. Fishing the gene pool : Genetic structure, admixture and behavioural complexity in fisheries management

    University dissertation from Department of Biology, Lund University

    Author : Kim H. Berndt; Lund University.; Lunds universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fisheries management; Fishery stock; Stock discrimination; Genetic structure; Genetic admixture; Admixture zone; Stock substructure; Phenotypic divergence; Gadus morhua; Salmo trutta;

    Abstract : Prudent management of marine fish resources relies on separation and management of biologically meaningful groups of conspecifics, termed fishery stocks, often depicted as self-sustaining, spatiotemporally separated and demographically independent entities. Such stock discrimination has however proven challenging. READ MORE

  5. 5. Population Fragmentation and Genetic Variation in Grouse

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jobs Karl Larsson; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Bonasa sewerzowi; bottleneck; genetic drift; genetic variation; inbreeding; isolation; microsatellites; population structure; Tetrao tetrix; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : In this thesis the genetic variation of two grouse species, the Chinese grouse (Bonasa sewersowi) and the Black grouse (Tetrao tetrix) was examined with neutral genetic markers: microsatellites. Habitat fragmentation and isolation leads to structuring among and loss of genetic variation within populations. READ MORE