Table 3. Effect of neglecting phylogenetic uncertainty on estimates of divergence times under local clock models for the marsupial data.
split | MSS: MAP tree | MSS: 95% CS | HOPACH: MAP tree | HOPACH: 95% CS | UCLN (BEAST) |
Sminthopsis/Phascogale | 24.76 | 24.77 | 23.55 | 23.71 | 23.96 |
Sminthopsis/Echymipera | 57.92 | 57.87 | 55.55 | 55.49 | 56.06 |
Echymipera/Perameles | 12.39 | 12.39 | 11.09 | 11.16 | 13.09 |
Notoryctes/Sminthopsis | 61.05 | 60.96 | 59.07 | 59.10 | 59.72 |
Dendrolagus/Pseudocheiridae | 35.07 | 35.26 | 45.12 | 44.19 | 33.26 |
Dendrolagus/Phalanger | 37.92 | 37.92 | 48.52 | 47.73 | 39.58 |
Phalanger/Vombatus | 40.46 | 40.61 | 50.67 | 50.09 | 46.25 |
Vombatus/Phascolarctos | 26.27 | 26.35 | 33.77 | 33.01 | 31.29 |
Vombatus/Dromiciops | 55.80 | 56.52 | 62.54 | 62.43 | 61.46 |
Dasyurus/Rhyncholestes | 73.23 | 72.20 | 76.74 | 74.30 | 77.67 |
Caenolestes/Rhyncholestes | 10.66 | 10.49 | 13.88 | 11.75 | 13.71 |
Equus/Ceratomorpha | 46.29 | 46.29 | 43.65 | 43.44 | 43.20 |
Cynocephalus/Leporidae | 67.24 | 67.27 | 63.71 | 64.40 | 64.74 |
Cynocephalus/Ceratomorpha | 80.23 | 80.25 | 76.66 | 76.81 | 77.54 |
Ceratomorpha/Bradypus | 90.88 | 90.88 | 92.15 | 92.05 | 87.94 |
Bradypus/Sirenia | 87.07 | 87.05 | 88.94 | 88.81 | 80.87 |
SSD | 202.28 | 203.75 | 338.07 | 304.87 | 0.00 |
Results for local clock models, MSS and HOPACH, are given both for the maximum a posteriori (MAP) tree and as a posterior probability weighted average over the 95% credibility set (CS) of topologies sampled from the appropriate target distribution. The uncorrelated models from BEAST (UCLN: uncorrelated lognormal) integrate over tree topologies, branch lengths and parameters of the substitution model. Times are in million years ago. SSD are computed with respect to UCLN (baseline).