Abstract: 18 cultivars of Chrysanthemum were analyzed using random amplified polymorphic DNAs (RAPDs) . Three primers out of 80 randomprimers showed high polymorphism , the polymorphic amplification fragment length ranged from 600 bp to 1300 bp. The 1200 bp fragment generated by primer OPD15 was present only in‘Dahongtuogui’, while the 1100 bp fragment generated by primer OPA17 was only absent in‘yulingguan’in 18 cultivars. The cultivars with similar petal type have high similarity coeficience (SC) among 18 cultivars.

Key words: Chrysanthemum, RAPD, Cultivars identification, Similarity coefficence