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dc.contributor.authorHidalgo, Oriane-
dc.contributor.authorGarcia-Jacas, Núria-
dc.contributor.authorGarnatje, Teresa-
dc.contributor.authorSusanna de la Serna, Alfonso-
dc.date.accessioned2010-11-17T11:24:33Z-
dc.date.available2010-11-17T11:24:33Z-
dc.date.issued2006-02-
dc.identifier.citationAnnals of Botany 97(5): 705-714 (2006)es_ES
dc.identifier.issn0305-7364-
dc.identifier.urihttp://hdl.handle.net/10261/29165-
dc.description33 p.es_ES
dc.description.abstract[EN]Background and Aims: The precise generic delimitation of the Rhaponticum group is not totally resolved. The lack of knowledge of the relationships between the basal genera of Centaureinae could imply that genera whose position is as yet unresolved could belong to the Rhaponticum group. On the other hand, the affinities among the genera that are considered as members of this group are not well known. The aim of the study is to contribute to the phylogenetic and generic delineation of the Rhaponticum group on the basis of molecular data. • Methods: Parsimony and Bayesian analyses of the combined sequences of one plastid (trnL-trnF) and two nuclear (ITS region and ETS) molecular markers were carried out. The results of these analyses are discussed in the light of the biogeographic history. • Key Results: The Rhaponticum group appears as monophyletic, and closely related to the genus Klasea. The results confirm the preliminary generic delimitation of the Rhaponticum group, with the new incorporation of the genus Centaurothamnus. Ochrocephala is supported as a separate genus from Rhaponticum and, contrary to this, Acroptilon and Leuzea appear as merged into the genus Rhaponticum. Several nomenclatural rearrangements are made in Klasea and Rhaponticum. • Conclusions: The new molecular evidence is consistent with the morphological and karyological data, and suggests particularly coherent biogeographic routes of migration and speciation processes for the genus Rhaponticum. The biogeographic inference proposes a Near East and/or Caucasian origin for the genus. Furthermore, representatives of Rhaponticum could have reached Europe in two different ways: (1) expansion across central Asia to eastern Europe, and (2) expansion through the Near East, North Africa and then to the Iberian Peninsula and the Alps.es_ES
dc.language.isoenges_ES
dc.publisherOxford University Presses_ES
dc.relation.isversionofPreprint-
dc.rightsopenAccesses_ES
dc.subjectAcroptilones_ES
dc.subjectCallicephaluses_ES
dc.subjectCentaurothamnuses_ES
dc.subjectCompositaees_ES
dc.subjectETSes_ES
dc.subjectITSes_ES
dc.subjectMolecular phylogenyes_ES
dc.subjectMyopordones_ES
dc.subjectOchrocephalaes_ES
dc.subjectOligochaetaes_ES
dc.subjectRhaponticumes_ES
dc.subjecttrnLtrnFes_ES
dc.titlePhylogeny of Rhaponticum (Asteraceae, Cardueae–Centaureinae) and Related Genera Inferred from Nuclear and Chloroplast DNA Sequence Data: Taxonomic and Biogeographic Implicationses_ES
dc.typepreprintes_ES
dc.identifier.doi10.1093/aob/mcl029-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1093/aob/mcl029es_ES
dc.identifier.e-issn1095-8290-
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