Eight SNPs were associated with depressive disorder, namely rs142101917, rs191244436, and rs541490076 of the ANK3 genotype; rs193069165 of the BDNF genotype; rs116938681, rs188470158, and rs565998563 of the CACNA1C genotype; and rs558147168 of the GRID1 genotype. Here, CACNA1C is linked to depressive disorder.