GENETIC-VARIABILITY OF THE WILD DIPLOID WHEAT TRITICUM-URARTU REVEALED BY RFLP AND RAPD MARKERS

Genetic variability among 49 accessions of Triticum urartu was estimat ed by RFLP and RAPD marker analyses, and the two data sets were compar ed. One T. timopheevii accession and two accessions of T. durum and T. aestivum, respectively, were included to identify T. urartu accession s closely related to these polyploid wheats. Twenty eight RFLP clones and 29 RAPD primers generated 451 and 155 polymorphic bands, respectiv ely. The three accessions from Armenia clustered together and were wel l separated from all other accessions, which showed less pronounced ge ographical patterns. Genetic similarity and co-phenetic values calcula ted with RAPD markers were very similar to those calculated with RFLP markers for the intraspecific comparisons, but not for the interspecif ic comparisons. The identification of individual T. urartu accessions which are more related to polyploid wheats than others was not possibl e.