Sökning: "gametophytes"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet gametophytes.

  1. 1. Sustainable Kelp Aquaculture in Sweden

    Författare :Wouter Visch; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biofouling; cryopreservation; ecosystem services; environmental impact; extractive aquaculture; gametophytes; kelp; population diversity; Saccharina latissima; seaweed cultivation; selective breeding; site selection;

    Sammanfattning : Seaweed aquaculture is gaining more interest worldwide, including Europe. However, despite its long coast seaweed farming is still very minor in Sweden. LÄS MER

  3. 2. Micromorphology of gametophytes and antheridial dehiscence in Thelypteridaceae

    Författare :Eva Tigerschiöld; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Evolutionary Processes and Hybridization within the Peat Mosses, Sphagnum

    Författare :Rayna Natcheva; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .; Sphagnum; bryophytes; morphology; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; growth rate; regeneration; evolution; Systematic botany; taxonomy; introgression; maternal inheritance; recombination; hybridizarion;

    Sammanfattning : The aim of this thesis was to reveal details of the interspecific hybridization among bryophytes as exemplified by Sphagnum capillifolium and S. quinquefarium. LÄS MER

  5. 4. Pollination in Ephedra (Gnetales)

    Författare :Kristina Bolinder; Catarina Rydin; Jürg Schönenberger; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; växtsystematik; Plant Systematics;

    Sammanfattning : Pollination, i.e., the transport of male gametophytes to female gametophytes, can occur with biotic or abiotic vectors and is necessary for fertilization and completion of the lifecycle in all seed plants. LÄS MER

  7. 5. Gene transfer by interspecific hybridization in bryophytes

    Författare :Weerachon Sawangproh; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homozygote; heterozygote; admixture; single nucleotide polymorphism; STRUCTURE; PCoA; hybrid index; inbreeding; outbreeding; hybrid depression; heterosis; phylogeny; purging selection; genetic purging; genotype; phenotype; sympatry; allopatry;

    Sammanfattning : The role of hybridization in evolution has been debated for more than a century regarding bryophytes (mosses, liverworts, and hornworts) as well as most other organisms. Bryophytes have haplodiplontic life cycles with a dominant haploid generation. LÄS MER