A Molecular Phylogeny of the Endemic Australian Genus Gastrolobium (Fabaceae: Mirbelieae) and Allied Genera Using Chloroplast and Nuclear Markers (original) (raw)

2001, American Journal of Botany

Gastrolobium (Fabaceae: Mirbelieae) is an endemic Australian genus that produces toxic sodium monofluoroacetate. A phylogenetic reconstruction of Gastrolobium and the related genera Brachysema, Callistachys, Jansonia, Nemcia, Oxylobium, and Podolobium is presented, using sequence data from three regions-the psbA-trnH intergenic spacer and the trnK 5Ј intron from chloroplast DNA and the 3Ј end of the external transcribed spacer (ETS) from nuclear ribosomal DNA. Gastrolobium is shown to be paraphyletic, with Brachysema, Jansonia, Nemcia, and Oxylobium lineare nesting within it, and Nemcia is shown to be polyphyletic within Gastrolobium.