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Resolving the unresolved tribe: a molecular phylogenetic framework for the Merremieae (Convolvulaceae)

Simoes, A. R., Culham, A. ORCID: and Carine, M. (2015) Resolving the unresolved tribe: a molecular phylogenetic framework for the Merremieae (Convolvulaceae). Botanical Journal of the Linnean Society, 179 (3). pp. 374-387. ISSN 0024-4074

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To link to this item DOI: 10.1111/boj.12339


Tribe Merremieae, as currently circumscribed, comprise c. 120 species classified in seven genera, the largest of which (Merremia) is morphologically heterogeneous. Previous studies, with limited sampling, have suggested that neither Merremieae nor Merremia are monophyletic. In the present study, the monophyly of Merremia and its allied genera was re-assessed, sampling 57 species of Merremieae for the plastid matK, trnL–trnF and rps16 regions and the nuclear internal transcribed spacer (ITS) region. All genera of Merremieae and all major morphotypes in Merremia were represented. Phylogenetic analyses resolve Merremieae in a clade with Ipomoeae, Convolvuleae and Daustinia montana. Merremia is confirmed as polyphyletic and a number of well-supported and morphologically distinct clades in Merremieae are recognized which accommodate most of the species in the tribe. These provide a framework for a generic revision of the assemblage.

Item Type:Article
Divisions:Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
Central Services > Academic and Governance Services > University Museums and Special Collections
ID Code:44049

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