Abstract:

【OBJECTIVE】Random amplified polymorphic DNA (RAPD) was applied to elucidate the genetic diversity and phylogenetic relationships of 37 cauliflower cultivars. 【RESULTS】There were 6random primers were selected from 80 random primers, six primers obtained 38 bands, of which 13 bands were polymorphic and accounted for 34.2% of the total bands. RAPD cluster analysis with primer S17 showed that 37 germplasm materials of cauliflower cultivars were separated into 4 groups, when genetic distance was 0.41. 【CONCLUSION】The genetic diversity of the cauliflower cultivars inconsistent with their geographical origins and growth period.