Search for dissertations about: "low copy nuclear DNA"

Showing result 6 - 10 of 10 swedish dissertations containing the words low copy nuclear DNA.

  2. 6. Systematics and polyploid evolution in Potentilleae (Rosaceae)

    Author : Magnus Lundberg; Torsten Eriksson; Jürg Schönenberger; Bengt Oxelman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Potentilleae; Fragariinae; Potentilla; Sibbaldia; Fragaria; Alchemilla; systematics; phylogeny; polyploidy; autopolyploidy; allopolyploidy; reticulate evolution; Systematics and phylogenetics; Systematik och fylogeni; växtsystematik; Plant Systematics;

    Abstract : This thesis comprises studies of the phylogenetic relationships in the flowering plant clade Potentilleae in Rosaceae. The relationships were elucidated by using DNA sequence data from the nuclear genome as well as from the plastid genome. In particular, the focus of the studies was the investigation of allopolyploidy, i.e. READ MORE

  4. 7. Phylogenetic and phyloclimatic inference of the evolution of Potentilleae (Rosaseae)

    Author : Mats H. Töpel; Göteborgs universitet; []
    Keywords : Potentilla; Ivesia; Horkelia; allopolyploidization; TGGE; Beringia;

    Abstract : Polyploidization has occurred many times during the evolution of angiosperms. Allopolyploidization is believed to be the process behind many of these genome duplications, and has resulted in a genetically diverse angiosperm flora. READ MORE

  5. 8. Systematics of Woodsia : Ferns, bioinformatics and more

    Author : Anders Larsson; Petra Korall; Mats Thulin; Anne Krag Brysting; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ferns; Eupolypods II; Woodsia; phylogeny; biogeography; polyploidy; polyploid speciation; classification; alignment; Biologi med inriktning mot systematik; Biology with specialization in Systematics;

    Abstract : Ferns are one of the three main clades of vascular plants. They have few easily studied morphological characters, reflected in a historically unstable classification. The fern genus Woodsia is known to have a complex evolutionary history including numerous polyploid taxa and hybrids. READ MORE

  6. 9. The evolutionary history of Geum (Rosaceae, Colurieae) : a study of ancient allopolyploid speciation

    Author : Jenny E. E. Smedmark; Birgitta Bremer; Pamela S. Soltis; Stockholms universitet; []
    Keywords : Geum; Rosaceae; molecular phylogeny; allopolyploidy; morphological evolution; gynoecial development; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Allopolyploid speciation plays an important role in flowering plant evolution. Its contribution to diversity has been suggested to be significant in Geum. READ MORE

  7. 10. Prognosis based classification and tumor biology of uterine sarcomas

    Author : Elin Hardell; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Uterine stromal sarcomas are a heterogenous group of tumors ranging from low-grade stromal sarcomas with a relatively good survival but high risk of recurrence, to undifferentiated uterine sarcomas with a far worse prognosis. Little is known about their biology, and prognostic markers are lacking. READ MORE