Sökning: "Horkelia"

Hittade 2 avhandlingar innehållade ordet Horkelia.

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

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

   Sammanfattning : 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. LÄS MER

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

   Författare :Magnus Lundberg; Torsten Eriksson; Jürg Schönenberger; Bengt Oxelman; Stockholms universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER