Fig. 6

Synteny block comparison of SLC9B (NHA) and distribution of genes encoding CatSper, sNHE and sAC in vertebrates. Synteny blocks around SLC9B1 (NHA1) and SLC9B2 (NHA2) among human, chicken, frog, medaka, zebrafish, and lizard are shown together with distributions of genes encoding CatSper (black), sNHE (blue) and sAC (red). In synteny blocks, the arrangement reflects the order and orientation of genes in each chromosome. Chromosomes (Chr) are not represented to the scale of base-pair length