Molecular Biogeography of Tribe Thermopsideae (Leguminosae): A Madrean-Tethyan Disjunction Pattern with an African Origin of Core Genistoides

Figure 2

Chronogram of relaxed Bayesian BEAST on the basis of the ITS dataset. Estimated times (Ma) with 95% HPD credibility intervals at concerned nodes were 1 : 54.43 (53.04–58.85), 2 : 39.45 (16.98–54.54), 3 : 33.47, 4 : 26.51 (13.59–42.87), 5 : 21.91 (7.09–23.65), 6 : 11.89 (4.78–15.64), 7 : 28.81 (10.95–41.02), 8 : 20.32 (6.9–22.98), 9 : 5.48 (2.99–10.81), 10 : 6.5 (3.38–11.11), 11 : 4, 12 : 4.9 (1.6–6.89), 13 : 3.08 (0.26–3.2), and 14 : 0.97 (0.46–2.8). Bootstrap support values > 50% above branches and posterior probability values > 0.5 below branches are indicated. “W” behind species name means species with the sequence data come from GenBank produced by Wang et al. [14]. S-DIVA optimal reconstruction of hypothesized ancestral areas at nodes and 10 dispersals with vertical line on branches are illustrated.