Search for dissertations about: "subfunctionalisation"

Found 4 swedish dissertations containing the word subfunctionalisation.

  2. 1. Evolution of Vertebrate Vision by Means of Whole Genome Duplications : Zebrafish as a Model for Gene Specialisation

    Author : David Lagman; Dan Larhammar; Xesús M Abalo; Finn Hallböök; Stephan Neuhauss; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phylogenetics; evolution; vision; visual opsin; transducin; PDE6; genome duplications; subfunctionalisation; Medicinsk vetenskap; Medical Science;

    Abstract : The signalling cascade of rods and cones use different but related protein components. Rods and cones, emerged in the common ancestor of vertebrates around 500 million years ago around when two whole genome duplications took place, named 1R and 2R. READ MORE

  4. 2. Synthesis of glucuronoxylan in higher and lower plants : is there conservation of the enzymatic machinery?

    Author : Emma Hörnblad; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : The hemicellulose glucuronoxylan (GX) is the second most abundant polysaccharide after cellulose in the secondary cell walls of angiosperms and contributes significantly to the properties of wood as raw materials. Despite this, very little is known about the biosynthesis of hemicellulose. READ MORE

  5. 3. Exploring the role of gene duplications in plant-insect interactions

    Author : Hanna Nicole Dort; Christopher Wheat; Noah Whiteman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; plant-insect interactions; comparative genomics; detoxification; transcriptomics; nitrile-specifier proteins; butterflies; populationsgenetik; Population Genetics;

    Abstract : As evolutionary biologists, we are often curious about the genomic origins of our favorite adaptations. Although some innovations certainly arose de novo, many more originated through the process of whole-gene or within-gene duplication. READ MORE

  6. 4. Variable surface molecules of the plasmodium falciparum infected erythrocyte and merozoite

    Author : Malin Haeggström; Karolinska Institutet; Karolinska Institutet; []
    Keywords : P.falciparum; infected erythrocytes; transport; Maurer s clefts; antigenic variation; PfEMP1; RIFIN; SURFIN; merozoites; subgroups;

    Abstract : As Plasmodium falciparum parasites matures within the infected erythrocyte (IE) it produces a number of various proteins, which are transported out to the cell surface where they are exposed to the host immune system. To avoid recognition and elimination by the liver and spleen these proteins can undergo antigenic variation, a phenomenon where the parasites switch from expressing one variant to' another, both belonging to the same gene-family. READ MORE