Table 2.

Effect of varying the standard deviation (SD) on the root prior at 3.5 Ga

SD (Ga)	II	D0	Ancestral standard D1	ΔT (range)
CAT + GTR + Γ
0.025	3.50 ± 0.03	2.99 ± 0.22	2.07 ± 0.22	0.91 (1.31–0.46)
0.05	3.54 ± 0.05	3.22 ± 0.19	2.19 ± 0.24	1.02 (1.44–0.60)
0.10	3.65 ± 0.10	3.29 ± 0.26	2.22 ± 0.23	1.07 (1.56–0.57)
0.20	4.00 ± 0.19	3.61 ± 0.32	2.32 ± 0.25	1.32 (1.87–0.70)
0.40	4.82 ± 0.38	4.55 ± 0.44	2.50 ± 0.28	1.74 (2.48 – 1.01)
LG + Γ
0.025	3.51 ± 0.02	3.36 ± 0.09	2.61 ± 0.15	0.75 (0.98–0.51)
0.05	3.53 ± 0.05	3.37 ± 0.11	2.62 ± 0.15	0.75 (1.00–0.48)
0.10	3.60 ± 0.09	3.45 ± 0.13	2.67 ± 0.16	0.79 (1.07–0.50)
0.20	3.75 ± 0.14	3.62 ± 0.16	2.74 ± 0.18	0.88 (1.21–0.53)
0.40	3.92 ± 0.21	3.79 ± 0.21	2.83 ± 0.21	0.96 (1.37–0.53)