Phylogenetic inference in Sapindaceae sensu lato using plastid matK and rbcL DNA sequences

Harrington, Mark G., Edwards, Karen J., Johnson, Sheila A., Chase, Mark W., and Gadek, Paul A. (2005) Phylogenetic inference in Sapindaceae sensu lato using plastid matK and rbcL DNA sequences. Systematic Botany, 30 (2). pp. 366-382.

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Phylogenetic relationships within Sapindaceae sensu lato are assessed using sequence data from two plastid genes, analyzed separately and together. A total of 46 rbcL sequences (31 of which are new), and 89 matK sequences (75 new) representing 64 genera were subjected to parsimony and Bayesian analysis. The results support three major lineages, relationships between which are only weakly supported. Xanthoceras sorbifolium is not clearly a member of any of these lineages, and there is some support for it being the first lineage to diverge within the entire assemblage. Support for a broadly defined Sapindaceae incorporating Aceraceae, Hippocastanaceae, and Xanthoceras is very robust. A division into four subfamilies is proposed: Sapindoideae (including Koelreuteria and Ungnadia); Hippocastanoideae (including taxa previously referred to Aceraceae and Hippocastanaceae, plus Handeliodendron); a more narrowly defined Dodonaeoideae; and a monotypic Xanthoceroideae. Tribal groupings are critically evaluated in light of the analyses. Although many of the current tribes appear paraphyletic or polyphyletic, there is support for the monophyly of some core groups of genera that suggest realignments of tribal concepts that would render them more informative of relationships.

Item ID: 7144
Item Type: Article (Refereed Research - C1)
ISSN: 1548-2324
Date Deposited: 18 Mar 2010 05:03
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060399 Evolutionary Biology not elsewhere classified @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960806 Forest and Woodlands Flora, Fauna and Biodiversity @ 60%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960811 Sparseland, Permanent Grassland and Arid Zone Flora, Fauna and Biodiversity @ 20%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960899 Flora, Fauna and Biodiversity of Environments not elsewhere classified @ 20%
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