Holmes RS, Spradling-Reeves KD, Cox LA. Evolution of Vertebrate Solute Carrier Family 9B Genes and Proteins (SLC9B): Evidence for a Marsupial Origin for Testis Specific SLC9B1 from an Ancestral Vertebrate SLC9B2 Gene. J Phylogenetics Evol Biol. 2016 Aug; 4(3).