Phenotypic and Genetic Diversity of South Indian  Allium Sp. (A.cepa And A.sativum) by Molecular  Fingerprinting To Select The Superior Germplasm

Packia Lekshmi N.C.J; Viveka; S.

Volume : IV, Issue : II, February - 2014

Phenotypic and Genetic Diversity of South Indian Allium Sp. (A.cepa And A.sativum) by Molecular Fingerprinting To Select The Superior Germplasm

Packia Lekshmi N. C. J , Viveka, S.

Abstract :

Allium is a genus of vegetative propogation, showing high morphological diversity and genetic diversity and its analysis plays an important role in eeding programs. The objective of this study is to determine the phenotypic and molecular polymorphism of onion and garlic collected from different cultivation sites. Among 20 random primers used, seven primers which produced the highest number of bands were used for DNA amplification. The proportion of polymorphic bands per total number of bands detected was higher for O1 (13.3%) compared to that of O2 (12.9 %) and O3 (5.79%). The proportion of polymorphic bands per total number of bands detected was higher for G1 (46.37%) species compared to that of G3 (38.7 %) and G2 (22.4%). From this study, we conclude that O2 and G3 are the superior germplasm in onion and garlic cultivars respectively