XVI International Botanical Congess

Phylogeny of the eucalypt group (sensu lato) is analysed using 6 regions of DNA: 5S rDNA repeat, ITS-1, ITS-2, psbA- trnH spacer, trnL intron, and trnL 3'exon-trnF spacer. Within the family Myrtaceae the genus Lophostemon was used as the outgroup to root trees and the ingroup included Allosyncarpia, Arillastrum, Eucalyptopsis, Stockwellia, Angophora, Corymbia and Eucalyptus. Levels of informativeness of each of the DNA regions are compared and the phylogenetic analyses are presented. Three monophyletic groups were well supported by the different data sets: Allosyncarpia, Eucalyptopsis and Stockwellia, Angophora and Corymbia, and Eucalyptus sensu stricto. The position of Arillastrum was equivocal and may be the sister taxon to the Allosyncarpia group or related to Angophora, Corymbia and Eucalyptus.