Sökning: "embryology"

Visar resultat 1 - 5 av 16 avhandlingar innehållade ordet embryology.

  1. 1. Conifer embryology : a study of polar auxin transport and WOX transcription factors

    Detta är en avhandling från Kalmar/Växjö : Linnaeus University Press

    Författare :Joakim Palovaara; Linnéuniversitetet.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Biology Organism biology Plant physiology; NATURVETENSKAP Biologi Organismbiologi Växtfysiologi; Cell and Organism Biology; Cell- och organismbiologi;

    Sammanfattning : Plants, like animals, use endogenous signaling molecules to coordinate their own physiology and development. One such molecule in plants is the hormone auxin and recent research has implicated auxin and its polar transport, together with the WOX transcription factors, in regulating embryo patterning and development in angiosperms (flowering plants), the most diverse group of land plants. LÄS MER

  2. 2. Aspects of priapulid development

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Sofia A Wennberg; Uppsala universitet.; [2008]
    Nyckelord :Earth sciences; Priapulus caudatus; Priapulida; Ecdysozoa; larval development; embryology; Geovetenskap;

    Sammanfattning : The phylum Priapulida is a small group of marine worms that is allied with the nematodes, kinorhynchs, loriciferans and nematomorphs in a clade called the Cycloneuralia or Introverta. Together with the arthropods they are generally considered to comprise the Ecdysozoa, a clade of moulting animals. LÄS MER

  3. 3. Ontogeny and Population Biology of a Sex-Limited Colour Polymorphism

    Detta är en avhandling från Xanto Grafiska AB

    Författare :Jessica Abbott; Lund University.; Lunds universitet.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; embryologi; ontogeni; animal morphology; embryology; Utvecklingsbiologi; Damselflies; Colour polymorphism; Development; Frequency-dependence; Morphology; growth animal ; ontogeny; Animal anatomy; Development biology; Djurs anatomi och morfologi; Population divergence; Animal ecology; Djurekologi;

    Sammanfattning : This study has involved investigation of number of populations of the damselfly Ischnura elegans over several years, looking at frequency changes over time, morphological differences between the sexes and the morphs, differences in growth rate and development time, differences in fecundity between the morphs, and genetic differentiation between populations. I. LÄS MER

  4. 4. The balance between sex and asex: evolutionary genetic studies of reproductive variation in Allium vineale

    Detta är en avhandling från Department of Genetics, Lund University

    Författare :Alf Ceplitis; Lund University.; Lunds universitet.; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ontogeny; growth animal ; Allium vineale; Development biology; evolution; sexual reproduction; reproductive systems; embryology; Utvecklingsbiologi; ontogeni; embryologi; Genetics; cytogenetics; Genetik; cytogenetik;

    Sammanfattning : Evolutionary theory predicts a disadvantage to sexual reproduction. This manifests itself either by the higher growth rate of asexual females in a dioecious species, or by the higher transmission rate of a gene conferring asexual female function to its carriers in a hermaphrodite species. LÄS MER

  5. 5. The role of polysaccharide modifications during Drosophila development

    Detta är en avhandling från Florian Lüders, Dep. of Cell and Molecular Biology, Section for Developmental Biology, BMC B13, 22184 Lund University

    Författare :Florian Lüders; Lund University.; Lunds universitet.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ontogeni; growth animal ; embryologi; Development biology; Decapentaplegic; Hedgehog; Wingless; Sulfation; Pipe; Glycosaminoglycan; Glycosyltransferase; ontogeny; embryology; Utvecklingsbiologi;

    Sammanfattning : Glucosides attached to proteins and lipids have been shown to modulate the activity of signal transduction pathways regulating growth and patterning processes during animal development. In particular, O-linked glycans such as glycosaminoglycans (GAGs) have been implicated in modulation of growth factor signaling pathways. LÄS MER