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Lehrstuhl Pflanzensystematik: Arbeitsgruppe Angiospermen - Prof. Dr. Sigrid Liede-Schumann

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Meve, U; Liede, S: Subtribal division of Ceropegieae., Taxon, 53(1), 61-72 (2004)
A molecular phylogeny and generic rearrangement of the stapelioid Ceropegieae (Apocynaceae-Asclepiadoideae)


Subtribal division of Ceropegieae (Apocynaceae – Asclepiadoideae)



Ulrich Meve and Sigrid Liede



Monophyly and sister group relationship of Ceropegieae and Marsdenieae, the two Asclepiadoideae tribes possessing erect pollinia, are confirmed by molecular investigation of non-coding cpDNA markers (trnT-L and trnL-F spacers, and the trnL intron). In Ceropegieae, the analyzed taxa fall in four subclades. The Heterostemma subclade is sister to other three subclades, of which the Conomitra-Leptadenia-Orthanthera subclade is sister to the Anisotoma-Neoschumannia-Riocreuxia-Sisyranthus subclade and to the large subclade comprising the always stem-succulent stapeliads, Brachystelma and Ceropegia. Following these results, subdivision of Ceropegieae into four subtribes, Ceropegiinae, Anisotominae, Heterostemminae and Leptadeniinae, is proposed.



Key Words: Anisotominae, Apocynaceae-Asclepiadoideae, Ceropegieae, Ceropegiinae, cpDNA, Heterostemminae, Leptadeniinae, Marsdenieae, molecular systematics, phylogeny, taxonomy.



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