GENETIC-CONTROL OF ISOZYMES IN EGGPLANT AND ITS WILD RELATIVES

This study was conducted to elucidate the inheritance and linkage rela tionships of isozymes in aspartate aminotransferase (AAT, EC 2.6.1.1), alcohol dehydrogenase (ADH, EC 1.1.1.1), phosphogluconate dehydrogena se (PGD, EC 1.1.1.43), phosphoglucomutase (PGM, EC 2.7.5.1) and shikim ate dehydrogenase (SKDH, EC 1.1.1.25)in eggplant and its wild relative s. Segregating populations were generated by backcrossing of hybrids a mong the species. Evidence of Mendelian inheritance was obtained for s even loci: Aat-1, Adh-1, Adh-2, Pgd-1, Pgm-1, Pgm-2 and Skdh-1. Twenty -one pairs of loci were tested for independent assortment, suggesting three linked pairs, Aat-2 with Pgd-2 (R = 0.35 +/- 0.07), Adh-2 with P gm-1 (R = 0.33 +/- 0.07) and Pgd-2 with Pgm-2 (R = 0.32 +/- 0.06).