Table 2 

Bayesian posterior probabilities (PP) for alternative positions of tunicates using different models of aminoacid replacements. 

Model 
Tunicata + Craniata 
Tunicata + Xenoturbella 
Tunicata sister to the remaining Bilateria 
Tunicata + Euchordata* 
Tunicata + Ambulacraria 
Tunicata sister to the remaining Deuterostomia 


mtREV+Γ_{4} (12,000 trees) 
0.14 
0.85 
0 
<0.01 
0 
<0.01 
GTR+Γ_{4} (24,000 trees) 
0 
0.83 
0.16 
0 
0 
<0.01 
CAT +Poisson+Γ_{4} (240,000 trees) 
0.71 
0.08 
<0.01 
0.11 
0.02 
0.02 
CAT +mtREV+Γ_{4} (12,000 trees) 
0.96 
0 
0 
<0.01 
0 
0 
CAT +GTR+Γ_{4} (12,000 trees) 
0.95 
0 
0 
<0.01 
<0.01 
0 
CAT +BP+Γ_{4} (34,800 trees) 
0.94 
0.03 
0 
0.02 
<0.01 
<0.01 


* Euchordata = Cephalochordata + Craniata PP were obtained from 3 independent MCMC runs for all models except CAT+BP+Γ_{4 }for which 5 MCMC were run. The number of trees used to compute PP is indicated. 

Singh et al. BMC Genomics 2009 10:534 doi:10.1186/1471216410534 