Fig. 3From: Comparative genomic analysis suggests that the sperm-specific sodium/proton exchanger and soluble adenylyl cyclase are key regulators of CatSper among the MetazoaDistribution of genes encoding the three proteins in 12 species of ray-finned fishes. Boxes represent the presence of genes as shown in Fig. 1. The phylogenetic tree was prepared based on a recent phylogenetic study of this taxon [93]. The branching patterns do not represent the proportional evolutionary rateBack to article page