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Deep divergences in the coffee family and the systematic position of Acranthera
Stockholm University, Faculty of Science, Department of Botany. Stockholm University, Faculty of Science, The Bergius Botanical Garden Museum.
Stockholm University, Faculty of Science, Department of Botany. Stockholm University, Faculty of Science, The Bergius Botanical Garden Museum. (Bergius Foundation)
Stockholm University, Faculty of Science, Department of Botany. Stockholm University, Faculty of Science, The Bergius Botanical Garden Museum. (Bergius Foundation)
Stockholm University, Faculty of Science, Department of Botany. Stockholm University, Faculty of Science, The Bergius Botanical Garden Museum. (Bergius Foundation)
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2009 (English)In: Plant Systematics and Evolution, ISSN 0378-2697, E-ISSN 1615-6110, Vol. 278, 101-123 p.Article in journal (Refereed) Published
Abstract [en]

Despite extensive efforts, there are unresolved questions on evolutionary relationships in the angiosperm family Rubiaceae. Here, information from six loci and 149 Rubiaceae taxa provide new insights. Acranthera and Coptosapelta are strongly supported as sisters. Pollen grains of Acranthera possess several features common in Rubiaceae, but amongst potential similarities with the unusual grains of Coptosapelta are the nature of the apertures andthe structure of the sexine. Luculia, Acranthera and Coptosapelta are excluded from the three subfamilies Ixoroideae, Cinchonoideae and Rubioideae. Sipaneeae and Condamineeae form a clade, sister to remaining Ixoroideae. Rondeletieae and Guettardeae are sisters to remaining Cinchonoideae. Colletoecema is sister to remaining Rubioideae, followed by the Urophylleae–Ophiorrhizeae clade. Nuclear ITS provided structured information at all phylogenetic levels, but the main gain from adding nrITS was the increased resolution. Average support values also increased but were generally high also without nrITS andthe increase was not statistically significant.

Place, publisher, year, edition, pages
2009. Vol. 278, 101-123 p.
Keyword [en]
Anther-stigma complex, Cinchonoideae, Coptosapelta, Ixoroideae, Luculia, Rubioideae
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:su:diva-36168DOI: 10.1007/s00606-008-0138-4ISI: 000263674500008OAI: oai:DiVA.org:su-36168DiVA: diva2:288907
Available from: 2010-01-22 Created: 2010-01-22 Last updated: 2017-12-12Bibliographically approved

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Rydin, CatarinaKainulainen, KentRazafimandimbison, SylvainSmedmark, JennyBremer, Birgitta
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