Detailed Bayesian gene-tree of deuterostome TLRs. Reference sequences from human, mouse, and Drosophila are highlighted in bold red font, and deuterostome sequences derived from genomic data are in bold font. The subtree contains Toll homology group, P. flava TLR expansion, reference TLR groups, the TLR3 homology group, and the B. floridae TLR expansion. Clades are colored as in Fig. 3. Black circles denote nodes with 100% posterior probability. Clades supported by less than 95% posterior probability have been collapsed. Asterisks indicate S. kowalevskii TLRs obtained from the revised S. kowalevskii genome (62).