Division of Vegetable Crops and Division of Biochemistry, Indian Agricultural Research Institute, New Delhi 110012.
* Present address: Department of Plantation Crops and Spices, College of Horticulture, Kerala Agricultural University, Vellanikkara 680654.
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 variant alleles GOT2b and EST1b 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.
Cucumis melo, isozyme variation, genetic distance, wild Cucumis ssp
