Sökning: "Arabidopsis"

Visar resultat 21 - 25 av 81 uppsatser innehållade ordet Arabidopsis.

  1. 21. Characterizaion of the mechanism underlying auxin-induced seed arrest in Arabidopsis thaliana

    Master-uppsats, SLU/Dept. Of Plant Biology

    Författare :Sowmiya Devi Venkatesan; [2020]
    Nyckelord :endosperm; hybridization barriers; triploid block; auxins; RNA Polymerase IV; RNA silencing;

    Sammanfattning : In flowering plants, seeds are produced as a result of double fertilization, whereby the haploid egg cell and the diploid central cell fuse with one of the two haploid sperm cells giving rise to a diploid embryo and a triploid endosperm, respectively. The endosperm serves as the major nutrient source for the developing embryo yet the molecular mechanisms pertaining to its development are not fully understood. LÄS MER

  3. 22. Analysis of chlorophyll synthesis mutants xantha-m and xantha-j of Hordeum vulgare L.

    Kandidat-uppsats, Lunds universitet/Examensarbeten i molekylärbiologi

    Författare :Fredrik Klinghammer; [2020]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : The xantha phenotype of barley is observable as a yellow plant and caused by an inability to correctly synthesize chlorophyll. Chlorophyll is a tetrapyrrolic pigment containing magnesium, and is integral for photosynthesis in plants. LÄS MER

  4. 23. Identifying Genetic Causes of Hybrid Necrosis in Arrabidopsis lyrata

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Carlos Valbuena-Gonzalo; [2019]
    Nyckelord :ACD6; deleterious gene interactions; DM9; dwarfism; microsatellites;

    Sammanfattning : Deleterious gene interactions due to accumulation of individual genetic variations between different lineages are a cause of population diversification by creating reproductive barriers that ultimately lead to differentiation of species. One type of deleterious interactions is called “hybrid necrosis”, in which epistatic interactions between some plant immunity genes (usually very variable) cause autoimmunities that produce a necrotic and dwarf phenotype. LÄS MER

  5. 24. Studying genetics of leaf shape variation in Arabidopsis lyrata

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Carina Kvernes Macpherson; [2019]
    Nyckelord :Arabidopsis lyrata; Arabidopsis arenosa; leaf shape; RCO genes; genotype; phenotype; gene sequence variation;

    Sammanfattning : The relationship between leaf and its environment has resulted in a tremendous diversification of leaf shape within and between plants species, which is important to cope with the differing environmental conditions. Arabidopsis lyrata is a prime model plant that shows leaf shape variation within species and between related species. LÄS MER

  7. 25. Suppressing fabulous mutants : A search for vascular regulators in Arabidopsis

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Hampus Leoo; [2019]
    Nyckelord :;

    Sammanfattning : .... LÄS MER