Search for dissertations about: "transposable elements"

Showing result 16 - 20 of 33 swedish dissertations containing the words transposable elements.

  2. 16. Signalling mechanisms and epigenetic regulation of seed development in Arabidopsis thaliana

    Author : Rita Batista; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In flowering plants, seed development starts with a double fertilisation event, leading to the formation of the embryo and the endosperm. Though only the embryo contributes to the next generation, control of endosperm proliferation, as well as the timing of its cellularisation are crucial for embryo viability. READ MORE

  4. 17. Molecular Evolution of the Vertebrate Genome

    Author : Kiwoong Nam; Hans Ellegren; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis, I studied molecular evolution of the vertebrate genome, focusing on sex chromosomes, protein coding genes, and genome size variation. The evolutionary history of avian sex chromosomes was analyzed by comparing substitution rate among 12 gametologous gene pairs on the Z and W chromosomes. READ MORE

  5. 18. The evolution and organization of multigene families exemplified by the hordein genes in barley

    Author : Susanne Pelger; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Hordein, the seed storage protein in barley, is encoded by a multigene family. All wild and cultivated species of the Hordeum genus were investigated electrophoretically and imunologically for their hordein composition. READ MORE

  6. 19. Ancient roles of non-coding RNAs in eukaryotic evolution : contributions from social amoebae and other protists

    Author : Lotta Avesson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : RNAs not coding for proteins, non-coding RNAs (ncRNAs) have many important roles in all kingdoms of life. Especially in eukaryotes, the regulatory functions of ncRNAs have been suggested as a major force in the evolution of complex traits. READ MORE

  7. 20. Small non-coding RNA in early fly development : plasticity, interactions and improved bioinformatic tools

    Author : Lovisa Örkenby; Anita Öst; Rashmi Ramesh; Daniel Nätt; Nicola Iovino; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drosophila; Maternal-to-zygotic transition; sncRNA; miRNA; piRNA; Embryogenesis; Zygotic gene activation;

    Abstract : At fertilization, the male and female pronuclei undergo a transformation from germline to pluripotency as they fuse, marking the beginning of Drosophila embryogenesis. As the parental contributions decrease, the zygote takes control of its genome in a process called the maternal-to-zygotic transition (MZT). READ MORE