New insights into the phylogenetics and biogeography of Arum (Araceae): unravelling its evolutionary history

Détails

ID Serval
serval:BIB_0BA2308A8660
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
New insights into the phylogenetics and biogeography of Arum (Araceae): unravelling its evolutionary history
Périodique
Botanical Journal of the Linnean Society
Auteur(s)
Espíndola A., Buerki S., Bedalov M., Küpfer P., Alvarez N.
ISSN
0024-4074
Statut éditorial
Publié
Date de publication
2010
Peer-reviewed
Oui
Volume
163
Numéro
1
Pages
14-32
Langue
anglais
Résumé
The heat- and odour-producing genus Arum (Araceae) has interested scientists for centuries. This long-term interest has allowed a deep knowledge of some complex processes, such as the physiology and dynamics of its characteristic lure-and-trap pollination system, to be built up. However, mainly because of its large distributional range and high degree of morphological variation, species' limits and relationships are still under discussion. Today, the genus comprises 28 species subdivided into two subgenera, two sections and six subsections. In this study, the phylogeny of the genus is inferred on the basis of four plastid regions, and the evolution of several morphological characters is investigated. Our phylogenetic hypothesis is not in agreement with the current infrageneric classification of the genus and challenges the monophyly of several species. This demonstrates the need for a new infrageneric classification based on characters reflecting the evolution of this enigmatic genus. To investigate the biogeography of Arum deeply, further spatiotemporal analyses were performed, addressing the importance of the Mediterranean basin in the diversification of Arum. Our results suggest that its centre of origin was the European-Aegean region, and that major diversification happened during the last 10 Myr.
Mots-clé
character tracing, infrageneric systematics, Mediterranean biogeography, phylogenetic inferences
Web of science
Open Access
Oui
Création de la notice
09/06/2010 15:14
Dernière modification de la notice
20/08/2019 13:33
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