Sökning: "founder effects"
Visar resultat 1 - 5 av 31 avhandlingar innehållade orden founder effects.
1. Long QT syndrome in Sweden : founder effects and associated cardiac phenotypes
Sammanfattning : Background: We aimed to increase the knowledge regarding the familial arrhythmogenic disorder Long QT Syndrome (LQTS) and its recessive variant Jervell and Lange-Nielsen Syndrome (JLNS) in Sweden, including prevalences and clinical phenotypes. A specific focus was directed towards two KCNQ1 mutations –p.Y111C and p. LÄS MER
2. Quantitative genetic variation in declining plant populations
Sammanfattning : The ecological and genetic effects of habitat fragmentation are an issue of major concern in current conservation biology. Habitat fragmentation results in smaller habitat areas and as a consequence smaller and more isolated populations. Many habitats have become fragmented through human activities such as forestry and agricultural development. LÄS MER
3. Early Development of New Technology-Based Firms: How Internal and External Resource Dimensions Impact and Structure the Firm
Sammanfattning : How do founders’ and firms’ business environment impact the early development of new technology-based firms (NTBFs)? In order to answer this question, this thesis explores how internal and external resource dimensions impact and structure the early development of NTBFs. NTBFs are known for their technological innovation and their abilities to boost economic growth and development. LÄS MER
4. Physical and biological dispersal barriers in invasive, bloom-forming microalgae
Sammanfattning : For a long time microorganisms were assumed to have unlimited dispersal due to their small size and high cell numbers. Most microbial species can be transported by water currents, in water droplets by wind and attached to other organisms. LÄS MER
5. Dispersal, inbreeding and fitness in natural populations
Sammanfattning : To evaluate how inbreeding affects the viability of small populations, it is crucial to determine what constitutes a population (i.e., the number of breeders in local patches and the degree of dispersal), and also to estimate the reproductive consequences of philopatry and emigration. LÄS MER