DMRTA2 and cyclic hematopoiesis: However, deleting Dmrta2 after CH formation still decreases the cortical size and changes the area map; the V1 area, which is the caudomedial neocortical region, was reduced in Emx1Cre- and NestinCre-driven Dmrta2 cKO mice on postnatal day 7 (De Clercq et al., 2018).