Tribes of Boraginoideae (Boraginaceae) and placement of Antiphytum, Echiochilon, Ogastemma and Sericostoma: A phylogenetic analysis based on atpB plastid DNA sequence data |
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Authors: | E Långström M W Chase |
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Institution: | (1) Department of Systematic Botany, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden, SE;(2) Jodrell Laboratory, Royal Botanic Gardens, Kew, UK, GB |
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Abstract: | The genera Antiphytum, Echiochilon, Ogastemma and Sericostoma, which have been difficult to place within the tribes of the subfamily Boraginoideae (Boraginaceae), are analysed using plastid
atpB sequence data. A selection of Boraginaceae genera was used to obtain a framework for the phylogenetic position of Antiphytum, Echiochilon, Ogastemma and Sericostoma. Sericostoma is found to belong within Echiochilon. The new tribe Echiochileae, Boragineae and Lithospermeae are monophyletic but the tribes Eritrichieae and Cynoglosseae are
paraphyletic. The biogeography of Echiochileae (Echiochilon and Ogastemma from Africa and western Asia, and Antiphytum from America) is discussed.
Received November 27, 2001; accepted March 20, 2002 Published online: November 14, 2002 ? Springer-Verlag 2002
Addresses of the authors: Elisabeth L?ngstr?m (e-mail: elisabeth.langstrom@ebc.uu.se), Department of Systematic Botany, Evolutionary
Biology Centre, Uppsala University, Norbyv?gen 18D, SE-752 36 Uppsala, Sweden. Mark W. Chase, Jodrell Laboratory, Royal Botanic
Gardens, Kew, TW9 3DS, UK. |
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Keywords: | : Antiphytum Echiochilon Ogastemma Sericostoma Boraginaceae Echiochileae phylo- geny atpB tribes biogeography |
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