Table 2.
Estimation of coalescence times. Bayesian analysis and parameter estimation using a non-correlated relaxed molecular clock and dating of major clades in the trees of Figures 2 and 3 assuming a Yule tree prior and alternative coalescent population growth models. Mean and 95% HPD values are indicated in millions of years.
| Coalescent model | |||
| Clades | Yule model | Constant size | Exponential growth |
| Tree root | 9.86 (6.92–13.10) | 14.19 (5.44–23.99) | 14.61 (6.63–23.48) |
| Node 1 | 7.16 (5.30–9.24) | 7.88 (4.31–11.79) | 8.30 (5.2–12.09) |
| Node 2 | 4.96 (3.47–6.54) | 5.30 (2.49–8.21) | 5.84 (3.18–9.13) |
| Node 3 | 6.82 (4.65–9.10) | 6.23 (3.22–10.10) | 6.85 (3.79–10.71) |
| Node 4 | 4.31 (2.95–5.83) | 4.17 (1.89–6.64) | 4.77 (2.27–7.46) |
| Node 5 | 2.35 (1.56–3.18) | 1.99 (0.77–3.40) | 2.20 (0.88–3.54) |
| Node 6 | 1.04 (0.69–1.39) | 0.94 (0.46–1.43) | 0.89 (0.43–1.36) |
| Node 7 | 0.33 (0.21–0.47) | 0.36 (0.17–0.58) | 0.32 (0.16–0.51) |
| P. epigaea CG + BG | 0.12 (0.06–0.19) | 0.11 (0.04–0.20) | 0.10 (0.04–0.17) |
| P. epigaea FR | 0.09 (0.04–0.16) | 0.09 (0.03–0.16) | 0.08 (0.03–0.15) |
| P. epigaea AV | 0.02 (0.00–0.06) | 0.02 (0.00–0.06) | 0.01 (0.00–0.04) |
| P. hypogaea GA | 0.08 (0.02–0.14) | 0.07 (0.02–0.15) | 0.07 (0.02–0.13) |
| P. hypogaea MA | 0.27 (0.17–0.38) | 0.28 (0.13–0.46) | 0.25 (0.12–0.40) |
| P. hypogaea AR | 0.18 (0.09–0.29) | 0.18 (0.06–0.34) | 0.17 (0.05–0.31) |
| P. epigaea JA | 0.11 (0.05–0.18) | 0.11 (0.04–0.21) | 0.10 (0.03–0.18) |
| P. hypogaea AG | 0.22 (0.10–0.34) | 0.23 (0.08–0.42) | 0.21 (0.07–0.36) |
| P. hypogaea PA | 0.29 (0.15–0.43) | 0.31 (0.12–0.54) | 0.28 (0.12–0.48) |
| Tree log-normal likelihood | -6193.1 (-6192.6; -6175.3) | -6163.9 (-6181.3; -6146.4) | -6165.4 (-6184.6; -6148.4) |
| Mean substitution rate (% per million years) | 4.34 (3.18–5.54) | 4.83 (2.72–7.22) | 4.68 (2.91–6.73) |