Sökning: "evolutionär genetik"
Visar resultat 1 - 5 av 66 avhandlingar innehållade orden evolutionär genetik.
1. Effects of Selection and Demography on DNA Polymorphism in Black Mustard (Brassica nigra)
Sammanfattning : The evolution of three genes from the CONSTANS-LIKE gene family is studied in Brassica nigra. We use a combination of population genetic and phylogenetic techniques in order to assess the relative importance of selection and demography on the pattern of DNA variation. LÄS MER
2. Archaeological Genetics - Approaching Human History through DNA Analysis
Sammanfattning : There are a variety of archaeological questions, which are difficult to assess by traditional archaeological methods. Similarly, there are genetic and population genetic questions about human evolution and migration that are difficult to assess by studying modern day genetic variation. LÄS MER
3. Evolution of MHC Genes and MHC Gene Expression
Sammanfattning : Polymorphism in coding regions and regions controlling gene expression is the major determinant of adaptive differences in natural populations. Genes of the major histocompatibility complex (MHC) possess a high level of genetic variation, which is maintained by selection over long coalescence times. LÄS MER
4. Patterns and Processes of Evolution in Sundaland
Sammanfattning : Biodiversity in the tropics is disproportionately high compared to other habitats, and also under disproportionate threat from human impact. It is necessary to understand how this diversity evolved and how it is partitioned across space in order to preserve it. LÄS MER
5. Detecting Sex and Selection in Ancient Cattle Remains Using Single Nucleotide Polymorphisms
Sammanfattning : All contemporary taurine cattle originated some 10,000 years ago when their wild ancestor, the aurochs, was domesticated in the Near East. Although the aurochs was widespread also in Europe, there is no evidence for a local domestication. The aurochs has been extinct since 1627 and therefore little is known about its biology. LÄS MER