Table 1.

Simulation parameters

Parameter	Values Evaluated
Substitution Rate	1.5
Average Branch Length	0.05,0.1,0.2,0.3,∞
Max. Gap	1,2,5,10,15
Root Sequence Length	70,100,150,200, 300,400,500,1000

All combinations of parameters were employed to generate the test data sets. The branch length variation equals the average branch length.