Search for dissertations about: "nuclear morphology"

Showing result 11 - 15 of 94 swedish dissertations containing the words nuclear morphology.

  2. 11. On Ingeae Systematics of synandrous mimosoids

    Author : Julia Ferm; Bertil Ståhl; Tiina Särkinen; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fabaceae; Ingeae; Systematics; Phylogenetics; Taxonomy; Morphology; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

    Abstract : Background: The Ingeae tribe (Caesalpiniodeae, Fabaceae) has a long history of taxonomic complexity with genera being merged and split, and many species with former placements in several different genera. Moreover, phylogenetic studies have shown that the tribe is non-monophyletic with the genus Acacia (of tribe Acacieae) nested within Ingeae. READ MORE

  4. 12. The Gnetales: fossils and phylogenies

    Author : Catarina Rydin; Else Marie Friis; Mari Källersjö; Ulf Swensson; Susana Magallón; Stockholms universitet; []
    Keywords : seed plants; Gnetales; Ephedra; fossils; DNA; phylogeny; morphology;

    Abstract : The phylogeny of seed plants has been debated for more than a hundred years and is still not fully understood. Morphological analyses have consistently resulted in a phylogeny in which cycads are the earliest diverging seed plants, and Gnetales and angiosperms are sisters. Molecular data has, however, rarely supported this result. READ MORE

  5. 13. Climbing the Trichoptera Tree : Investigations of Branches and Leaves

    Author : Tobias Malm; Kjell Arne Johanson; Wolfram Mey; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Trichoptera; Leptoceridae; Symphitoneuria; Gracilipsodes; Triplectides; morphology; DNA; systematics; phylogeny; New Caledonia; Madagascar; new species; new genus; Systematics and phylogenetics; Systematik och fylogeni; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : The Trichoptera (caddisflies) is the largest of the primary aquatic insect orders, currently including more than 13,500 species. With more than 100 species new to science described annually, the known caddisfly diversity is rapidly increasing. In the first four papers of this Thesis, a total of 22 species new to science are described. READ MORE

  6. 14. Autolytinae: molecules, morphology, and reproduction

    Author : Arne Nygren; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Phylogeny; systematics; revision; new taxa; PhyloCode; reconstruction of ancestral states.;

    Abstract : Autolytines constitute a well delineated group of syllid polychaetes, separated from other syllids by the presence of a sinuous pharynx, lack of ventral cirri and reproduction with dimorphic sexes. The group comprises c. 170 nominal species distributed worldwide, mostly inhabiting hard substrates restricted to the continental shelf. READ MORE

  7. 15. INFLAMMATION AND PROSTATIC CARCINOGENESIS ? A MORPHOLOGICAL STUDY OF THE HUMAN PROSTATE

    Author : Wanzhong Wang; Göteborgs universitet; []
    Keywords : prostate; carcinogenesis; chronic inflammation; atrophy; morphology; immunohistochemistry;

    Abstract : ABSTRACT: Chronic inflammation has been suggested to be linked to cancers. Inflammatory infiltrates are often found in and around foci of prostatic atrophy. These foci, called proliferative inflammatory atrophy (PIA), are proposed as precursors of prostate cancer (PCa) or prostatic intraepithelial neoplasia (PIN). READ MORE