Abstract
This study was conducted to reveal genetic diversity among 23 local apple genotypes using nuclear (RAPD) and chloroplast DNA (PCR-cpRFLP) markers. Eleven RAPD primers and four cpDNA primer combinations were used in this study. RAPD primers produced a total of 77 polymorphic fragments with an average of seven bands per primer. The percentage of polymorphic bands (68.14 %) showed the efficiency of used RAPD primers in distinguishing all the genotypes considered. Genetic similarity between studied genotypes varied from 0.38 to 0.72 and cluster analysis showed the abundant diversity, indicating high intraspecific genetic variation between Iranian apple genotypes. From the four universal chloroplast primer pairs, three primer pairs amplified the fragments and their combinations showed polymorphic patterns and revealed intraspecific chloroplast variation. The information will facilitate germplasm identification, conservation and new cultivar development.
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