Figure 1: Number of chemokine genes identified in the genomes of rodents and rabbit. Phylogenetic relationships of rodents, rabbit, and human are also shown. Divergence times (Mya, million years ago) [16] are not to scale. Sequences of the chemokines used for analyses in this study and the phylogenetic tree are shown in the Supplementary Material available online at http://dx.doi.org/10.1155/2013/856265.