Phylogenetic studies in the Inuleae s. lat. (Asteraceae)
1997 (English)Doctoral thesis, comprehensive summary (Other academic)
This thesis concerns phylogenetic problems in the tribe Inuleae s. lat. (Asteraceae). The genus Perralderia is revised. Fontquera is found to be taxonomically synonymous and is consequently included in Perralderia. Three species are recognised in this genus and their biogeography is briefly discussed. The result of a cladistic analysis of Perralderia and its presumed sister group Iphiona is presented. A cladistic analysis of the basal interrelationships of the Inuleae s. str. focussing on the morphological variation of the genus Anisopappus is presented. Anisopappus is found to be monophyletic and placed as the sister group to the rest of the tribe. A discussion of some floral characters is provided. The first molecular phylogeny of the Inuleae s. str. is presented, based on nrDNA ITS sequences. The result of the analysis is discussed and compared with analyses of morphological data. A strict consensus tree of the cladistic analysis is shown and serves as a base for the discussion of interpretations of the character evolution of e. g. receptacular paleae and pappus scales. The previously suggested subdivision of the tribe into an epaleate clade and a paleate grade is not supported. The systematic position of Cylindrocline and Rosenia is determined in a cladistic analysis of cpDNA ndhF data. The obtained sequences for the two genera are combined with additional GenBank data for 89 taxa of the Asteraceae as well as five outgroups, and analysed by parsimony jackknifing. The result is presented in a consensus tree. Cylindrocline is placed in the tribe Plucheeae and Rosenia is found to belong to Gnaphalieae. Tribal interrelationships of subfamily Asteroideae are discussed with emphasis on the affinities of the tribes Inuleae s. str., Plucheeae and Gnaphalieae.
Place, publisher, year, edition, pages
Stockholm: Department of Botany, Stockholm University , 1997. , 14 p.
Research subject Plant Systematics
IdentifiersURN: urn:nbn:se:su:diva-39622ISBN: 91-7153-562-4OAI: oai:DiVA.org:su-39622DiVA: diva2:320890
1997-02-08, 00:00 (English)
Härtill 4 uppsatser2010-05-272010-05-272010-12-01Bibliographically approved