Sökning: "Genotype by environment interactions"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden Genotype by environment interactions.
1. Organic dairy production : herd characteristics and genotype by environment interactions
Sammanfattning : The aim of this thesis was to gain further knowledge about the performance of cows in organic dairy production and their ability to adapt to the organic production environment. Milk production traits, fertility traits, somatic cell count (SCC) and longevity traits were analysed in organic and conventional herds and the reasons for culling in the two systems were investigated. LÄS MER
2. Pollen Competition as a Target for Sexual Selection in Plants
Sammanfattning : According to the theory of sexual selection, traits can evolve because they confer a mating advantage in competition with members from the same sex. In animals, sexual selection is considered as an important evolutionary force. In this thesis I have investigated the potential for sexual selection in plants. LÄS MER
3. Predictors of Alcohol Misuse : Role of MAOA Genotype, Methylation, Transcription, and Negative and Positive Environmental factors
Sammanfattning : Alcohol misuse is a risk factor for alcohol use disorder (AUD). Gene-environment interactions contribute to the risk or resilience for AUD. A functional polymorphism in the promoter of the monoamine oxidase A gene (MAOA-uVNTR), in interaction with negative environment (Eneg), is associated with alcohol misuse and AUD. LÄS MER
4. Microenvironmental Impact on Tumour Cell Phenotype and Genotype in Adult and Paediatric Tumours
Sammanfattning : This thesis explores how the tumour microenvironment affects the phenotype and shapes the evolution of cancer cells. It encompasses four separate studies:First, we explored the effect of chemokines on the peritotumoral microenvironment of ovarian cancer. LÄS MER
5. Early Environment and Adolescent Ethanol Consumption : Effects on Endogenous Opioids and Behaviour in Rats
Sammanfattning : Excessive and compulsive ethanol drinking is one of the most serious public health issues. Therefore, it is vital to increase the knowledge about risks and protection for alcohol use disorders (AUD) to optimize prevention and treatment strategies. LÄS MER