Search for dissertations about: "trait loci"

Showing result 1 - 5 of 106 swedish dissertations containing the words trait loci.

  2. 1. Complex Trait Genetics : Beyond Additivity

    Author : Simon Forsberg; Örjan Carlborg; Julien Ayroles; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; genetic interactions; epistasis; additivity; GWAS; vGWAS; Genetic mapping; yeast; Arabidopsis Thaliana; dog; Genetik; Genetics;

    Abstract : The link between the genotype and the phenotype of an organism is immensely complex. Despite this it can, to a great extent, be captured using models that assume that gene variants combine their effects in an additive manner. This thesis explores aspects of genetics that cannot be fully captured using such additive models. READ MORE

  4. 2. Novel Statistical Methods in Quantitative Genetics : Modeling Genetic Variance for Quantitative Trait Loci Mapping and Genomic Evaluation

    Author : Xia Shen; Örjan Carlborg; Lars Rönnegård; William Hill; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; statistical genetics; quantitative trait loci; genome-wide association study; genomic selection; genetic variance; hierarchical generalized linear model; linear mixed model; random effect; heteroscedastic effects model; variance-controlling genes; Complex Systems – Microdata Analysis;

    Abstract : This thesis develops and evaluates statistical methods for different types of genetic analyses, including quantitative trait loci (QTL) analysis, genome-wide association study (GWAS), and genomic evaluation. The main contribution of the thesis is to provide novel insights in modeling genetic variance, especially via random effects models. READ MORE

  5. 3. Numerical Algorithms for Mapping of Multiple Quantitative Trait Loci in Experimental Populations

    Author : Kajsa Ljungberg; Sverker Holmgren; Örjan Carlborg; Margot Gerritsen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Scientific computing; Beräkningsvetenskap; Scientific Computing;

    Abstract : Most traits of medical or economic importance are quantitative, i.e. they can be measured on a continuous scale. Strong biological evidence indicates that quantitative traits are governed by a complex interplay between the environment and multiple quantitative trait loci, QTL, in the genome. READ MORE

  6. 4. QTL Analysis in the Pig : From the Identification of Quantitative Trait Loci to the Understanding of Molecular Mechanisms

    Author : Ellen Markljung; Leif Andersson; Göran Andersson; Göran Hjälm; Stefan Marklund; Holger Luthman; Uppsala universitet; []
    Keywords : ;

    Abstract : Domestic pigs have become very different form the wild ancestors they originate from. Selection for muscle growth and meat quality has made the pig a good model for genetic studies of muscle development.The first part of this thesis presents a genome-wide scan for quantitative trait loci (QTL) in a cross between Landrace and Hampshire pigs. READ MORE

  7. 5. FROM DISEASE TO THE GENE - Identification of arthritis-regulating loci in rats

    Author : Carola Rintisch; Immunologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pristane-induced arthritis; Rat strain; Autoimmunity; Rheumatoid arthritis; Quantitative trait locus;

    Abstract : Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of the peripheral joints that eventually leads to cartilage destruction and bone erosion. The causes of RA remain largely unknown, but considerable evidence suggests a multifactorial aetiology involving both environmental and genetic factors. READ MORE