Analysis of Genetic Diversity among Tomato (Lycopersicon lycopersicum Mill.) Genotypes using Biochemical and Morphological Markers

The present study was undertaken to evaluate isozymes and protein profiling over morphological characters for varietal identification of 10 tomato genotypes. The results revealed that morphological characters viz, plant height, number of branches, plant spread, fruit length, fruit girth, and seed per fruit can be used for grouping of 10 tomato genotypes. Isozymes (esterase, peroxidase and catalase) and protein profiling showed different banding patterns, which might be used for varietal identification. Isozymes and protein profiling indicated that NDT-9 and HADT-145 exhibited highest similarity (100%), while JTL-08-33 and JTL-08-14 showed minimum similarity (46%). JTL-08-33 had maximum variability among other genotypes which was also found by combined analysis of esterase, peroxidase and catalase isozyme analysis.