Variability in Egg Plant (Solanum melongena L.) Cultivars as Revealed by SDS-PAGE of Seed Protein

Fourteen genotypes were distinguished into nine groups on different banding patterns in three zones (A, B and C). PB 64 and PB 66; BARI and Pant Rituraj; KS 331, PB 69 and Punjab Sadabahar; PB 70, SMB 115 and PB 67 fell in four different groups and showed similar banding pattern within the group. PB 64 and Pant Rituraj exhibited similar banding pattern (100%). Similarly, PB 66 and BARI, KS 331 and Punjab Sadabahar, KS 331 and PB 70, Punjab Sadabahar and Pant Samrat, PB 70 and SMB 115 showed 100 percent similarity in seed protein profiles. There were sufficient variability among the PB 69 and PB 67, PB 67 and Pusa Upkar, PB 67 and Pant Samrat. The minimum genetic similarity was observed between PB 69 and PB 67 (44%) followed by Punjab Sadabahar and PB 67 (47%) by PB 67 and Pusa Upkar (47%) and PB 67 and Pant Samrat (47%). The UPGMA analysis showed that PB 60, PB 68 PB 64, Pant Rituraj, PB 66, BARI and PB 69, KS 331, PB 70, SMB 115, Punjab Sadabahar, Pant Samrat, Pusa Upkar formed two different clusters. However, PB 60; PB 68; PB 64 and PB 66; BARI and Pant Rituraj; KS 331, PB 69 and Punjab Sadabahar; PB 70, SMB 115 and PB 70; Pusa Upkar; and Pant Samrat were three different neighbouring groups.