Oberprieler, Christoph (2002) A phylogenetic analysis of Chamaemelum Mill. (Compositae: Anthemideae) and related genera based upon nrDNA ITS and cpDNA trnL/trnF IGS sequence variation. Botanical Journal Of The Linnean Society 138 (3), pp. 255-273.
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Sequences of the nrDNA internal transcribed spacer (ITS) region and the cpDNA trnL/trnF intergenic spacer (IGS) region were analysed for 11 species of Chamaemelum Mill. and its related genera Cladanthus Cass., Mecomischus Coss. ex Benth., Rhetinolepis Coss., and Santolina L. (Compositae, Anthemideae) to study the infrageneric taxonomy and phylogenetic relationships of Chamaemelum and clarify the proper taxonomic position of the enigmatic North African endemic Santolina africana Jord. & Fourr. The results suggest that Chamaemelum in its traditional circumscription is at best paraphyletic, with Cladanthus arabicus (L.) Cass. consistently nested within it. Additionally, the subdivision of Chamaemelum into two monophyletic entities [Ch. sect. Chamaemelum with Ch. fuscatum (Brot.) Vasc. and Ch. nobile (L.) All.; Ch. sect. Santolinopsis Benedí with Ch. eriolepis (Coss. ex Maire) Benedí, Ch. flahaultii (Emb.) Benedí, and Ch. scariosum (Ball) Benedí] based on floret and achene morphological features is corroborated by the phylogenetic analysis of molecular data. Finally, the correct classification of Santolina africana as a member of the genus Santolina is further demonstrated.
|Institutions:||Biology, Preclinical Medicine > Institut für Botanik / Zellbiologie > Group Plant Systematics and Evolution (Prof. Dr. Christoph Oberprieler)|
|Keywords:||Asteraceae; Cladanthus; Mecomischus; molecular phylogeny; Rhetinolepis; Santolina|
|Subjects:||500 Science > 570 Life sciences|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||24 Feb 2011 12:27|
|Last Modified:||24 Feb 2011 12:27|