Sökning: "Ulf Lagercrantz"
Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Ulf Lagercrantz.
1. Genetic structure of natural populations : aspects of the association between genetical and morphological variability patterns
Sammanfattning : Most species comprise a number of more or less reproductively isolated subpopulations. These subpopulations may exhibit striking differences in morphology and ecology, and on the basis of those differences they are often given the rank of subspecies, race, stock, variety, etc. LÄS MER
2. Delaktighet- och lärprocesser i en yrkesutbildning : En studie av vuxna elevers erfarenheter av vård- och omsorgsutbildningen inom Komvux
Sammanfattning : Numerous research on the development of knowledge and skills within health and social care has been undertaken; however, it can be argued that there is a need to understand the connection between inclusion and the development in knowledge and experience. The purpose of this dissertation is to explore students’ experiences of the health and social care adult- education program, and participation and learning processes it represents. LÄS MER
3. Conservation Genetics and Speciation in Asian Forest Trees
Sammanfattning : Tropical forests are important because they are the home of millions of species at the same time as they perform ecosystem services and provide food, cash income and raw materials for the people living there. The present thesis elucidates questions relevant to the conservation of selected forest trees as it adds to the knowledge in the phylogeny, population structure, genetic diversity and adaptation in these species. LÄS MER
4. Conifer Evolution, from Demography and Local Adaptation to Evolutionary Rates : Examples from the Picea genus
Sammanfattning : Evolutionary process can be inferred at three different levels: the species level, the population level and the molecular level. In this thesis, I applied approaches at these three levels and aimed to get a comprehensive picture of conifer evolution, from speciation and demography to geographic variation and local adaptation, and then to the molecular evolution of proteins and small regulatory RNAs. LÄS MER
5. Studies on Natural Variation and Evolution of Photoperiodism in Plants
Sammanfattning : Photoperiodism refers to the organism’s ability to detect and respond to seasonal changes in the daily duration of light and dark and thus constitutes one of the most significant and complex examples of the interaction between the organism and its environment. This thesis attempts to describe the prevalence of variation in a photoperiodic response, its adaptive value, and its putative genetic basis in a common cruciferous weed, Capsella bursa-pastoris (Brassicaceae). LÄS MER
