Sökning: "genome duplication"

Visar resultat 21 - 25 av 67 avhandlingar innehållade orden genome duplication.

  1. 21. Origin and the evolution of diatoms through the integration of paleontology and phylogenetics

    Författare :Karolina Brylka; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diatoms; evolution; fossil record; Cretaceous; molecular evolution; Mesozoic; silicon transporter proteins; gene duplication;

    Sammanfattning : Diatoms, the prominent photosynthetic eucaryotes, have inhabited the world’s oceans for at least the past 120 Ma since their first appearance in the Lower Cretaceous. There are also records of older diatoms, from the Jurassic dating to ca. 172 Ma and ca. 165 Ma, however these are poorly documented. LÄS MER

  3. 22. Sculpted through Time : Evolution and Function of Serine Proteases from the Mast Cell Chymase Locus

    Författare :Maike Gallwitz; Lars Hellman; Lars Pilström; Urban Gullberg; Uppsala universitet; []
    Nyckelord :Immunology; immune system; mast cell; chymase locus; serine protease; evolution; gene duplication; Immunologi;

    Sammanfattning : Immune cells like NK cells, T cells, neutrophils and mast cells store high amounts of granule serine proteases, graspases. Graspases are encoded from the mast cell chymase locus. The human locus holds four genes: α-chymase, cathepsin G, and granzymes H and B. In contrast, the mouse locus contains at least 14 genes. LÄS MER

  4. 23. Tumor Suppressor function of the deubiquitinating enzyme BAP1 and its substrate gamma-tubulin In regulation of cell cycle and genome stability

    Författare :Reihaneh Zarrizi; Avdelningen för translationell cancerforskning; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : In normal cells, the cell cycle is controlled by a complex series of signalling pathways by which a cell grows, replicates its DNA and divides. The critical task of the cell cycle is to ensure that DNA is faithfully replicated and that identical chromosomal copies are distributed equally to two daughter cells during mitosis with the help of the mitotic spindle. LÄS MER

  5. 24. Genomic and transcripto variation in blood stage Plasmodium falciparum

    Författare :Bobo Mok; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Antigenic variation; comparative genomic hybridization CGH ; copy number polymorphism CNP ; microarray; P. falciparum; PfEMP1; subtelomeric regions; segmental duplication; switching; var;

    Sammanfattning : Malaria research has entered a postgenomic era since October 2002, when the complete genomic sequence of Plasmodium falciparum strain 3D7 was published. A massive amount of information generated by the P. falciparum genome project has facilitated the development of many novel platforms for profiling different levels of biological aspects. LÄS MER

  7. 25. Evolutionary genomics of symbiotic fungi

    Författare :Balaji Rajashekar; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein family; Symbiosis; Paxillus involutus; Laccaria bicolor; Hydrophobin; Fungi; Ectomycorrhizae; Evolution; Comparative Genomics; Basidiomycetes;

    Sammanfattning : Ectomycorrhizae is a mutualistic association between roots of woody plants and a diverse range of soil fungi. The fungi exchange soil derived mineral nutrients for photosynthetic sugars from the host plant. The mycorrhizal symbioses are commonly found in all forest ecosystems and have a major ecological and economical importance. LÄS MER