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Phylogenetic relationships of the Aurantioideae inferred from chloroplast DNA sequence data
Author(s) -
Morton Cynthia M.,
Grant Matthew,
Blackmore Stephen
Publication year - 2003
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.3732/ajb.90.10.1463
Subject(s) - biology , monophyly , phylogenetic tree , subfamily , taxon , evolutionary biology , phylogenetics , botany , clade , genetics , gene
The tribes and subtribes of Aurantioideae, an economically important subfamily of the Rutaceae, have a controversial taxonomic history because of the lack of a phylogenetic framework. The rps16 and trnL‐trnF sequences of the chloroplast were analyzed phylogenetically to construct an evolutionary history and evaluate the most recent classification system of Swingle and Reece ( The Citrus Industry , volume 1 [1967]). Taxa representing tribes Citreae and Clauseneae and five of the six subtribes were sampled. Conflicts in the positions of some taxa between the rps16 and trnL‐trnF trees are poorly supported. In all analyses, the Aurantioideae are monophyletic. The strict consensus tree of the combined analysis indicates that the two tribes along with the subtribes sampled are not monophyletic. The combined topology is not congruent with the widely used classification of Aurantioideae by Swingle and Reece. The tribes and subtribes are in need of revision.