Lupinus.online.FigureS1.04.26.11

SUPPLEMENTARY FIGURE S1. Ancestral geographic ranges of Lupinus inferred under a dispersal–extinction cladogenesis (DEC) model in lagrange, based on the maximum clade credibility tree in Figure 2 of the main text. Circles correspond to the maximum likelihood estimate of ancestral ranges, with divided circles indicating ancestral ranges split by dispersal and/or extinction on subtending branches. The DEC estimates are very similar to the BEAST continuous-time Markov chain (CTMC) phylogeographic results shown in the main text, with the main difference being that DEC tends to reconstruct widespread ancestral ranges at nodes with uncertain posterior distributions in the CTMC analysis. We obtained similar estimates for DEC analyses based on 1000 trees randomly selected from the posterior distribution of Bayesian MCMC tree searches in BEAST (results not shown), indicating that the DEC analyses were robust to phylogenetic uncertainty.