A locus for hyperglycemia in GTT was mapped to segment B-D in KK-Ay mice (Nidd6k) [13], a locus for serum insulin was mapped to segment B-E in NZO (Nidd3) [14], and loci for hyperglycemia in GTT were mapped to segment E in SMXA-5 (T2dm5sa) [15], TSOD (Nidd4) [16], and Akita mouse (Dbm2) [17] (Fig. 8). Here, INS is linked to Hyperglycemia.