Phylogeny of the australian camphorosmeae (chenopodiaceae) and the taxonomic significance of the fruiting perianth
Issue Date
5-2009
Abstract
Molecular and morphological data were used to reconstruct the phylogeny of Camphorosmeae (Chenopo-diaceae) in Australia, a tribe adapted to and widespread in the temperate arid and semiarid areas of the continent. A total of 71 species, representing nearly half of the species and all 14 currently recognized endemic genera, were sampled. Of seven molecular markers tested (ETS, ITS, the trnL-trnF spacer, the trnP-psaJ spacer, the rpS16 intron, the rpL16 intron, and the trnS-trnG spacer), only the nuclear ETS and ITS provided enough variation for phylogenetic studies in the group. Phylogenetic hypotheses inferred from molecular data do not support the current taxonomy of Camphorosmeae in Australia. Neobassia, Threlkeldia, Osteocarpum, and Enchylaena should be subsumed into the species-rich genera Sclerolaena and Maireana. Of 15 morphological characters, only the fruiting perianth provided some support for the taxonomic implications of the DNA-based phylogeny. Indumentum characters, which were reported to be of taxonomic significance in several groups in Cheno- podiaceae, did not provide support for the molecular phylogeny of Camphorosmeae in Australia. © 2009 by The University of Chicago. All rights reserved.
Source or Periodical Title
International Journal of Plant Sciences
ISSN
10585893
Volume
170
Issue
4
Page
505-521
Document Type
Article
Language
English
Subject
Australia, ETS, Fruit morphology, Fruiting-perianth appendages, Maireana, Sclerolaena
Recommended Citation
Cabrera, J., Jacobs, S., & Kadereit, G. (2009). Phylogeny of the Australian Camphorosmeae (Chenopodiaceae) and the Taxonomic Significance of the Fruiting Perianth. International Journal of Plant Sciences, 170(4), 505-521
Identifier
https://doi.org/10.1086/597267
Digital Copy
YES
