Sökning: "heritability"

Visar resultat 11 - 15 av 83 uppsatser innehållade ordet heritability.

  1. 11. Exploration of the hereditary cause of sex ratio distortion in horses

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Susan Ott; [2021]
    Nyckelord :Sex ratio; horse; selfish genetic elements; meiotic drive; Icelandic horse; Standardbred horse; Coldblooded trotters; heritability; Trivers-Willard hypothesis; pedigree data;

    Sammanfattning : Even sex ratios are seen as evolutionarily stable and are maintained by a selection against a skewed sex ratio. However, sometimes sex ratios at birth are skewed towards one sex. Reasons for this phenomenon are often unknown. LÄS MER

  3. 12. Sambandet mellan hästens hårvirvlar, beteende och lateralitet

    Kandidat-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Johanna Norling; [2021]
    Nyckelord :beteenden; hårvirvlar; hästar; lateralitet;

    Sammanfattning : Hårvirvlar finns både hos människor och ett stort antal andra djurarter. Virvlarna kan skilja sig åt på ett flertal sätt och hos hästar har forskare redogjort för en hög arvbarhet. LÄS MER

  4. 13. Genetic background of temperament traits in standardbred trotters

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Paulina Berglund; [2021]
    Nyckelord :temperament; standardbred trotter; heritability; low-pass whole genome sequencing;

    Sammanfattning : The genetic background of temperament traits in horses has been subject for research for many years to obtain understanding of domestication, breed differences and welfare. Previous studies have found heritabilities ranging from low to moderate for temperament. LÄS MER

  5. 14. Causality in Coexpression

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Carolina Barros; [2020]
    Nyckelord :bioinformatics; computational biology; genomics; causality; genetics; coexpression;

    Sammanfattning : One of the main goals of genetics has been to understand the link between genotype and phenotype. Using yeast (Saccharomyces cerevisiae) as our model organism, we take a closer look at the connection between genetic variation and gene expression to learn more about the mechanisms of gene regulation. LÄS MER

  7. 15. International genomic evaluation of Brown Swiss and Holstein dairy cattle : multi-trait vs. single-trait approach

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Sallam Mohammed Abdallah Ahmed; [2020]
    Nyckelord :Genotype-based international genomic evaluation; single trait; multi-trait; reliability; MACE proofs; national proofs; selection index; Brown Swiss; Holstein; Gene by environment interaction;

    Sammanfattning : International genomic evaluation for Brown Swiss population known as InterGenomics, was officially launched in 2011 by Interbull Center in Uppsala, Sweden. The routine evaluation is currently carried out using a single-trait approach where estimated breeding value from multi-trait across countries evaluation (MACE EBV) are used as a dependent variable and genetic corre-lations are assumed to be equal to one between countries. LÄS MER