sentence: GO :0004890 and GO :0005230 : GABRG1 ( BTA14 ) and GABRA2 ( BTA6 ) ; GO :0003273 : DCHS1 ( BTA15 ) and GO :0071479 : SPIDR ( BTA14 ) , shown in Table 4 , can be highlighted as genes that might play fundamental roles in metabolic functions involving MILK .