Table 2.
Divergence times with different groupings of substitution types. Ninety-five per cent credibility (and prior) intervals are directly below the posterior (and prior) means. Units are millions of years. The nodes are labelled as in figure 2, and the divergence times in parentheses under the node labels are obtained from TimeTree [15,16]. For each grouping, the first two lines summarize the posterior distributions from the 400 histories sampled according to the GTR model, and the two italicized lines that follow summarize the posterior distributions from the 312 CAT–GTR histories sampled by Lee et al. [8]. Entries for the ingroup root (node 14) are not listed here because prior distributions tightly concentrated this node time to a narrow range.
| node | 8 | 9 | 10 | 11 | 12 | 13 |
|---|---|---|---|---|---|---|
| time | (18.8) | (8.8) | (11.5) | (15.1) | (18.8) | (29.6) |
| prior | 22.3 | 11.0 | 22.2 | 11.1 | 22.1 | 33.1 |
| (1.1, 43.1) | (0.3, 31.4) | (4.2, 40.0) | (0.4, 31.5) | (4.0, 40.0) | (12.5, 43.9) | |
| one-group | 18.0 | 6.3 | 10.0 | 18.3 | 20.6 | 30.5 |
| (16.4, 19.9) | (5.2, 8.0) | (8.4, 12.4) | (16.1, 21.0) | (18.3, 23.5) | (28.5, 32.6) | |
| 22.8 | 6.7 | 10.5 | 17.4 | 19.1 | 30.6 | |
| (18.6, 27.0) | (5.7, 7.9) | (9.1, 12.1) | (15.7, 19.8) | (17.4, 21.6) | (29.0, 32.4) | |
| two-groups | 18.0 | 6.6 | 10.4 | 18.4 | 20.8 | 30.7 |
| (16.6, 19.5) | (5.6, 7.9) | (9.0, 12.2) | (16.6, 20.3) | (18.8, 22.8) | (29.1, 32.3) | |
| 21.9 | 6.7 | 10.5 | 17.4 | 19.2 | 30.5 | |
| (18.9, 25.0) | (5.9, 7.8) | (9.3, 11.9) | (15.9, 19.3) | (17.7, 21.2) | (29.1, 32.1) | |
| three-groups | 18.0 | 6.4 | 10.2 | 18.4 | 20.7 | 30.7 |
| (16.9, 19.2) | (5.6, 7.4) | (9.0, 11.6) | (16.9, 20.0) | (19.2, 22.4) | (29.3, 32.0) | |
| 21.1 | 6.6 | 10.4 | 17.6 | 19.5 | 30.5 | |
| (18.6, 24.0) | (5.8, 7.6) | (9.1, 11.8) | (16.0, 19.3) | (17.8, 21.2) | (29.1, 32.0) | |
| four-groups | 17.8 | 6.3 | 10.0 | 18.2 | 20.5 | 30.4 |
| (16.7, 19.0) | (5.5, 7.3) | (8.8, 11.3) | (16.7, 19.7) | (18.9, 22.1) | (29.1, 31.8) | |
| 20.6 | 6.5 | 10.1 | 17.5 | 19.3 | 30.3 | |
| (18.1, 23.3) | (5.6, 7.4) | (8.9, 11.4) | (15.9, 19.1) | (17.7, 21.0) | (28.9, 31.8) | |
| nine-groups | 17.8 | 6.1 | 9.6 | 17.8 | 20.0 | 30.1 |
| (16.8, 18.8) | (5.5, 6.8) | (8.8, 10.6) | (16.7, 19.0) | (18.8, 21.3) | (29.0, 31.1) | |
| 19.7 | 6.2 | 9.7 | 17.5 | 19.2 | 30.1 | |
| (18.5, 21.5) | (5.6, 6.9) | (8.8, 10.6) | (16.3, 18.7) | (18.0, 20.5) | (29.0, 31.2) |