A Phylogenetic Analysis of the Acacieae and Ingeae (Mimosoideae: Fabaceae) based on trnK, matK, psbA-trnH, and trnL/trnF Sequence Data

Abstract

Abstract A phylogenetic analysis of exemplars of Acacieae, Ingeae, and some Mimoseae, based on trnK, matK, psbA-trnH, and trnL/trnF sequence data, is presented. The results support other recent studies in showing that neither the Ingeae nor Acacieae is monophyletic. Some subgenera of Acacia, specifically subgenera Acacia and Phyllodineae, are monophyletic, but subg. Acacia is in a basal polychotomy with various members of Mimoseae and a large clade with the other members of Ingeae and Acacieae. Acacia subg. Phyllodineae is sister group to members of the Ingeae. Both the Ingeae and Acacia subg. Aculeiferum are paraphyletic.