Table 2

Divergence times between giraffe clades

Time (MY)

Clades

Θ (SD)

M(SD)

T(SD)

0.05 s/s/MY

0.10 s/s/MY

0.15 s/s/MY

[per] [rot]

0.55 (0.09)

0.01 (0.01)

18.10 (2.21)

0.464

0.232

0.155

[tip] [gir]

3.93 (0.24)

0.18 (0.03)

2.04 (0.11)

0.374

0.187

0.125

[per+rot] [ret]

2.72 (0.11)

0.04 (0.01)

4.26 (0.42)

0.540

0.270

0.180

[tip+gir] [ang]

5.57 (0.28)

0.04 (0.01)

3.32 (0.21)

0.862

0.431

0.287

[tip+gir+ang] [per+rot+ret]

5.31 (0.09)

0.05 (0.00)

6.72 (0.23)

1.617

0.808

0.539

Divergence times between giraffe clades in Figure 1 based on mtDNA control region sequence data. Maximum likelihood values of parameters θ, M (2Nm), and T (t/2N) estimated with a non-equilibrium coalescence model using the program MDIV [19]. Time divergence values (in million years, MY) are given for three mutation rate estimates for the giraffe mtDNA control region (0.05, 0.10 and 0.15 substitutions per site per MY), and a generation time of 4 years. per = G.c. peralta, rot = G.c. rothschildi, ret = G.c. reticulata, tip = G.c. tippelskirschi, ang = G.c. angolensis, gir = G.c. giraffa.

Brown et al. BMC Biology 2007 5:57   doi:10.1186/1741-7007-5-57