Fig. 1From: Evolutionary patterns of Toll-like receptor signaling pathway genes in the SuidaeThe TLR signaling pathway genes. Redrawn following [4], with modification to include TLR10. The direction of signal transduction is indicated by the arrows. TLRs 3, 7, 8, and 9 are included in the first pathway position category. The numbers on the left side represent the position of the pathway genes. Genes used in this study are shown in boldBack to article page