ISOZYME VARIATION IN MUSKMELON (CUCUMIS MELD L.)

Abstract

Isozyme variation in 32 melon varieties was studied for the enzyme systems esterase (EST), peroxidase (PRX), glutamate oxaloacetate transaminase (GOT), and glutamate dehydrogenase (GDH). Three out of the 14 loci scored, were dimorphic with two alleles at each locus. The remaining 11 loci were monomorphic. While both the alleles at the PRX2 locus were fairly well distributed in the collections studied, the varian t alleles GOT2b and ESTlb were confined to Indian nondessert and semiwild colledions (Phut and Kachri, respectively). Ace. 566, catalogued as C. melo var. callosus, was unique in possessing all the variant alleles identified in the present study.