DMRTC2 belongs to the DMRT family. Contains 1 DM DNA-binding domain. Expressed in testis and pancreas. May be involved in sexual development. Recent advances in the evolutionary genetics of sex determination indicate that DMRT1 may be a vertebrate equivalent of the Drosophila melanogaster master sex regulator gene, doublesex. The role of DMRT1 seems to be confined to some aspects of male sex differentiation, whereas in Drosophila, doublesex has wider developmental effects in both sexes. This suggests other homologs of doublesex may exist in the vertebrate genome and encode sex-specific functions not displayed by DMRT1. Human DM genes map to three well-defined regions of chromosomes 1, 9, and 19 (one gene on chromosome 19 having an additional homolog on chromosome X).