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. 2013 Oct 1;8(10):e76464. doi: 10.1371/journal.pone.0076464

Figure 2. The MDS analysis of evolutionary relationships among chordata, mollusca and arthropoda TLRs.

Figure 2

The sequences used for MDS analysis are listed in table S2. Different colors are used to distinguish between phylum species. The distance between any two points on the plot refers to their molecular distance or divergence. Mollusk and arthropod TLRs are much less divergent than that within vertebrata TLR family. The TLRs of ancient non-vertebrate chordates like S. purpuratus and B . lanceolatum is closer to CgTLRs than to arthropoda TLRs.