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ITS Sequence Data Resolve Higher Level Relationships Among the Eucalypts


Steane, DA and McKinnon, GE and Vaillancourt, RE and Potts, BM, ITS Sequence Data Resolve Higher Level Relationships Among the Eucalypts, Molecular Phylogenetics and Evolution, 12, (2) pp. 215-223. ISSN 1055-7903 (1999) [Refereed Article]

DOI: doi:10.1006/mpev.1999.0612


Sequences of the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA were obtained for 35 species of Eucalyptus s.s. and seven taxa representing five outgroup genera (Allosyncarpia, Angophora, Arillastrum, Corymbia, and Stockwellia). The sequences were analyzed cladistically. The data distinguished clearly between the two major subgenera of Eucalyptus s.s. (Symphyomyrtus and Monocalyptus) but indicated that subgenus Eudesmia may be paraphyletic. ITS sequence data demonstrated the potential to resolve relationships between sections within subgenus Symphyomyrtus. Within sections, however, taxa were poorly differentiated. At the generic level, Corymbia appeared to be paraphyletic due to the exclusion of Angophora. The positions of Allosyncarpia and Arillastrum relative to the ingroup remain unresolved. ITS sequence data may prove valuable for resolving other phylogenetic relationships at higher taxonomic levels within Eucalyptus. © 1999 Academic Press.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Plant and fungus systematics and taxonomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Steane, DA (Dr Dorothy Steane)
UTAS Author:McKinnon, GE (Dr Gay McKinnon)
UTAS Author:Vaillancourt, RE (Professor Rene Vaillancourt)
UTAS Author:Potts, BM (Professor Brad Potts)
ID Code:17565
Year Published:1999
Web of Science® Times Cited:61
Deposited By:Plant Science
Deposited On:1999-08-01
Last Modified:2009-07-31

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