Scopus
YÖKSİS Eşleşti
Phylogeny of the Centaurea group (Centaurea, Compositae) - Geography is a better predictor than morphology
Molecular Phylogenetics and Evolution · Ocak 2014
YÖKSİS Kayıtları
Phylogeny of the Centaurea group Centaurea Compositae Geography is a better predictor than morphology
Molecular Phylogenetics and Evolution · 2014 SCI-Expanded
PROFESÖR OSMAN TUGAY →
Makale Bilgileri
DergiMolecular Phylogenetics and Evolution
Yayın TarihiOcak 2014
Cilt / Sayfa77 · 195-215
Scopus ID2-s2.0-84900537482
Özet
The Centaurea group is part of the Circum-Mediterranean Clade (CMC) of genus Centaurea subgenus Centaurea, a mainly Mediterranean plant group with more than 200 described species. The group is traditionally split on morphological basis into three sections: Centaurea, Phalolepis and Willkommia. This division, however, is doubtful, especially in light of molecular approaches. In this study we try to resolve this phylogenetic problem and to consolidate the circumscription and delimitation of the entire group against other closely related groups. We analyzed nuclear (internal transcribed spacer of the ribosomal genes) and chloroplast (rpl32-trnL intergenic spacer) DNA regions for most of the described species of the Centaurea group using phylogenetic and network approaches, and we checked the data for recombination. Phylogeny was used to reconstruct the evolution of the lacerate-membranaceous bract appendages using parsimony. The magnitude of incomplete lineage sorting was tested estimating the effective population sizes. Molecular dating was performed using a Bayesian approach, and the ancestral area reconstruction was conducted using the Dispersal-Extinction-Cladogenesis method. Monophyly of the Centaurea group is confirmed if a few species are removed. Our results do not support the traditional sectional division. There is a high incongruence between the two markers and between genetic data and morphology. However, there is a clear relation between geography and the structure of the molecular data. Diversification in the Centaurea group mainly took place during the Pliocene and Pleistocene. The ancestral area infered for the Circum-Mediterranean Clade of Centaurea is the Eastern Mediterranean, whereas for the Centaurea group it is most likely NW-Africa. The large incongruencies, which hamper phylogenetic reconstruction, are probably the result of introgression, even though the presence of incomplete lineage sorting as an additional factor cannot be ruled out. Convergent evolution of morphological traits may have led to incongruence between morphology-based, traditional systematics and molecular results. Our results also cast major doubts about current species delimitation. © 2014 Elsevier Inc.
Yazarlar (13)
1
Andreas Hilpold
2
Roser Vilatersana
3
Alfonso Susanna
4
Andrea S. Meseguer
5
Igor Boršić
6
Theophanis Constantinidis
7
Rossella Filigheddu
8
Konstantin Romaschenko
9
Víctor N. Suárez-Santiago
10
Osman Tugay
11
Tuna Uysal
12
Bernard E. Pfeil
13
Núria Garcia-Jacas
Anahtar Kelimeler
Centaurea
Hybridization
Incomplete lineage sorting
Mediterranean
Molecular dating
Phylogenetic incongruence
Kurumlar
CSIC-ICUB - Instituto Botanico de Barcelona (IBB)
Barcelona Spain
CSIC - Real Jardin Botanico (RJB)
Madrid Spain
Göteborgs Universitet
Gothenburg Sweden
National and Kapodistrian University of Athens
Athens Greece
Selçuk Üniversitesi
Selçuklu Turkey
State Institute for Nature Protection
Zagreb Croatia
Universidad de Granada, Facultad de Ciencias
Granada Spain
Università degli Studi di Sassari
Sassari Italy
Metrikler
69
Atıf
13
Yazar
6
Anahtar Kelime