Search for dissertations about: "Genotype by environment interactions"

Showing result 1 - 5 of 25 swedish dissertations containing the words Genotype by environment interactions.

2. 1. Organic dairy production : herd characteristics and genotype by environment interactions

   Author : Therese Ahlman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Abstract : 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. READ MORE

4. 2. Pollen Competition as a Target for Sexual Selection in Plants

   Author : Åsa Lankinen; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sexual selection; Pollen tube growth rate; Pollen selection models; Pollen interactions; Pollen competition; Plants; Phenotypic plasticity; Non-random mating; Genotype by environment interactions; Mate choice; Viola tricolor.; Plant ecology; Växtekologi;

   Abstract : 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. READ MORE

5. 3. Predictors of Alcohol Misuse : Role of MAOA Genotype, Methylation, Transcription, and Negative and Positive Environmental factors

   Author : Megha Bendre; Kent Nilsson; Erika Comasco; Ingrid Nylander; Mia Ericson; Uppsala universitet; []
   Keywords : Alcohol; AUD; MAOA; methylation; expression; early-life stress; maltreatment; parent–child relationship; gene–environment interactions.; Medicinsk vetenskap; Medical Science;

   Abstract : 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. READ MORE

6. 4. Microenvironmental Impact on Tumour Cell Phenotype and Genotype in Adult and Paediatric Tumours

   Author : Hiroaki Yasui; Avdelningen för klinisk genetik; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cancer genotype; cancer phenotype; malignant rhabdoid tumour; neuroblastoma; ovarian cancer; tumour evolution; Wilms tumour;

   Abstract : 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. READ MORE

7. 5. Early Environment and Adolescent Ethanol Consumption : Effects on Endogenous Opioids and Behaviour in Rats

   Author : Loudin Daoura; Ingrid Nylander; Erika Roman; Bo Söderpalm; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alcohol; intermittent ethanol access; maternal separation; multivariate concentric square field™ test; maternal behavior; ultrasonic vocalization; adolescent; neonatal handling; Farmaceutisk farmakologi; Pharmaceutical Pharmacology;

   Abstract : 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. READ MORE