Genetic diversity of Iranian Aegilops umbellulata collection using RAPD marker

Wheat is the oldest and most important agricultural product، with widest farming area in the world. Narrow Genetic base in cultivated wheat lines، prevents yield improvement according to increasing demand. So، introduction and identification of genetic resources from landraces and wild relatives are important in yield and adaptability improvement programs of commercial wheat cultivars. In this study، 45 genotypes of Aegilops umbellulata collection، from 8 different provinces، were used to investigation and identification of genetic diversity، genetic structure and genetic distance between populations. Ten RAPD markers were used to evaluation of genetic diversity. The results showed 97 bands، which 97. 94 % were polymorphic. Observed number of alleles was 1. 97 and effective number of alleles was 1. 53. Data comparison based on Nei’s index، revealed a genetic diversity from 0. 14 to 0. 28 between different populations. Overall genetic diversity index was 0. 32. Gene differentiation indices suggest high gene flow between population and low subpopulation deviation. Azarbayejan accessions showed highest diversity and minimum genetic distances with other populations، thus، Azarbayejan was suggested as center of diversity of Ae. umbellulata in Iran.