Article detail · 2006
Centaurea revisited A Molecular Survey Of The Jacea Group
- Year
- 2006
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue ANNALS OF BOTANY
- Catalog match (ISSN) Annals of Botany
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · English
BACKGROUND AND AIMS: The genus Centaurea has traditionally been considered to be a complicated taxon. No attempt at phylogenetic reconstruction has been made since recent revisions in circumscription, and previous reconstructions did not include a good representation of species. A new molecular survey is thus needed. METHODS: Phylogenetic analyses were conducted using sequences of the internal transcribed spacers (ITS) 1 and 2 and the 5.8S gene. Parsimony and Bayesian approaches were used. KEY RESULTS: A close correlation between geography and the phylogenetic tree based on ITS sequences was found in all the analyses, with three main groups being resolved: (1) comprising the most widely distributed circum-Mediterranean/Eurosiberian sections; (2) the western Mediterranean sections; and (3) the eastern Mediterranean and Irano-Turanian sections. The results show that the sectional classification in current use needs major revision, with many old sections being merged into larger ones. A large polytomy in the eastern Mediterranean clade suggests a rapid and recent speciation in this group. Some inconsistencies between morphology and molecular phylogeny may indicate that hybridization has played a major role in the evolution of the genus. CONCLUSIONS: Phylogenetic analysis of ITS has been useful in identifying the major lineages in the group, and unraveling many inconsistencies in the sectional classification. However, most recent groups in the eastern Mediterranean clade are not resolved and reticulation in the western Mediterranean group of sections makes phylogenetic relationships within these two groups somewhat obscure.
Topics
Citations
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158 citations
OpenAlex cited_by_count (cache / database)
74 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- Phylogeny of the Centaurea group Centaurea Compositae Geography is a better predictor than morphology 2014
- title Composition of Essential Oils of Ten i Centaurea i L Taxa from Turkey title 2008
- Karyomorphological Study of Eight Centaurea L. Taxa (Asteraceae) from Turkey 2009
- Pollen morphology of some Centaurea L., Psephellus Cass. and Cyanus Miller taxa 2009
- New chromosome counts in the genus Centaurea Asteraceae from Turkey 2009
- New chromosome counts in the genus Centaurea Asteraceae from Turkey 2009
- Morphology, anatomy, ecology and palynology of two Centaurea species from Turkey 1970
- Speciation and genetic diversity in Centaurea subsect Phalolepis in Anatolia 2016
- Speciation and genetic diversity in Centaurea subsect Phalolepis in Anatolia 2016
- Speciation and genetic diversity in Centaurea subsect Phalolepis in Anatolia 2016