Figure 6

Removing fast-evolving sequences. Exon sequences of C. elegans showing L _Ce ≥ = 4.06 represent 15% of the total exon. When these faster exons were removed (above blue line), support for the Coelomata topology was reduced from the original 100% to 85%. Furthermore, when 28% of the faster exons were deleted (red line), Ecdysozoa is recovered with 90% statistical support. This suggests that LBAE is the main problem in obtaining the Ecdysozoa tree. Blue line, = 4.06; red line, = 2.66.