Studies on genetic diversity using SSR marker associated traits in tomato genotypes (Lycopersicum esculentum L.)
KR Saravanan, Ranjith Rajaram, P Renganathan
Tomato (lycopersicum esculentum L.), an economically important crop, the research work carried with 18 genotypes for studying its genetic diversity using five SSR markers. The result suggested the existence of high diversity among the tomato genotypes. High genetic diversity was registered between the genotypes i.e., LE-150 and LE-22. Among the 18 tomato genotypes LE-150 and LE-22 showed highest similarity as revealed by clustering using SSR markers. Similarity coefficient of 18 genotypes using SSR markers ranged from 0.1 to 0.4. The clustering done using UPGMA was further confirmed by DARWIN (6.0 version). These genotypes may be crossed among themselves to obtain high yielding F1 hybrids and best segregants in the later generations. SSR markers detected medium locus polymorphism among the 18 tomato genotypes, which could further be utilized in strengthening tomato breeding programme.