ITS Sequence Data Resolve Higher Level Relationships Among the Eucalypts
journal contribution
posted on 2023-05-16, 11:56 authored by Dorothy Steane, McKinnon, GE, Rene VaillancourtRene Vaillancourt, Bradley PottsBradley PottsSequences 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.
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Publication title
Molecular Phylogenetics and EvolutionVolume
12Pagination
215-223ISSN
1055-7903Department/School
School of Natural SciencesPublisher
Academic PressPlace of publication
USARepository Status
- Restricted
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