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. 1996 Nov 12;93(23):13036–13041. doi: 10.1073/pnas.93.23.13036

Figure 1.

Figure 1

Majority-rule bootstrap MP tree (500 replications; 10 random stepwise addition of taxa, TBR branch swapping, MULPARS) (23) based on (A) the combined data set of Shh gene exons 1 and 2 and Hoxd-10 exons 1 and 2 (about 1300 bp per species); (B) Shh exons 1 and 2 combined; and (C) Hoxd-10 exons 1 and 2 combined. Nodes with bootstrap values below 50% were forced to collapse and yield polytomies. NJ and ML methods arrived at identical topologies to that shown for MP. Goldfish (Carassius auratus) was used as an outgroup for all trees.