La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Phylogeny of the tribe Colletieae, Rhamnaceae
Auteurs :	Lone Aagesen, Auteur
Type de document :	Article
Dans :	Botanical Journal of the Linnean Society (131(1) 1999-09-01)
Article en page(s) :	1-43
Résumé :	A cladistic analysis based on 63 morphological characters was carried out on the tribe Colletieae including two presumed closely related genera, Ceanothus and Noltea as outgroups. In addition to a parsimony analysis of the equally weighted characters, analyses investigating the effects of character weighting, removal of a presumed hybrid species as well as the impact of uncertainly scored characters were undertaken. In all analyses Noltea was placed as sister group to a well supported monophyletic Colletieae. Nineteen different ingroup topologies were found, with the additional analyses mainly supporting two of them. Within the Colletieae a basal dichotomy divides Trevoa and Retanilla from the remainder of the tribe. While the Trevoa-Retanilla clade is fully resolved, the second lacks detailed resolution. Within this clade the Colletia species from a well supported monophyletic group, while monophyly of the disjunct genus Discaria could not be confirmed.
En ligne :	https://doi.org/10.1111/j.1095-8339.1999.tb01940.x

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