Table 1 Estimated mean node ages (Ma) for selected divergence events under different clock models. Ages are in million years, and the values in brackets are the 95% posterior probability intervals
Node of interest | Fossil calibration | Substitution rate calibration | |
|---|---|---|---|
Strict clock | Relaxed clock | Strict clock | |
Root | 77.5 (63.8–92.4) | 87.0 (58.2–122.2) | 93.2 (81.0–106.1) |
Crotalaria stem node | 23.1 (18.4–27.9) | 29.5 (21.4–50.6) | 29.5 (26.2–33.0) |
Crotalaria crown node | 17.7 (14.3–21.5) | 29.1 (18.3–42.4) | 22.9 (20.5–25.4) |
Core Chrysocalycinae crown node | 14.0 (12.4–19.0) | 26.5 (15.8–38.5) | 19.3 (16.9–21.7) |
2n = 14 clade | 11.7 (8.7–14.8) | 29.5 (18.3–42.3) | 16.5 (13.3–19.6) |
Truncate calyx tube clade crown node | 12.2 (9.7–15.0) | 22.1 (13.0–32.0) | 16.4 (14.3–18.5) |
Linearifoliolata/persica clade crown node | 16.7 (13.3–20.2) | 26.4 (16.5–37.8) | 21.6 (19.3–24.1) |
Bulbous standard appendages clade crown node | 13.6 (10.5–16.7) | 22.4 (13.7–32.2) | 17.9 (15.3–20.6) |
Bilabiate calyx clade crown node | 12.4 (9.6–15.1) | 20.9 (12.6–30.1) | 15.7 (13.4–18.0) |