Abstract:

In order to verify the genetic relationship of the Zizyphus jujuba , the genetic diversity of 21 different varieties of Z. jujuba was analyzed by using the random amplified polymorphic DNA(RAPD) in the study. The result showed as follows: 20 effective primers were selected from 36 primers. 185 bands were amplified, among which 173 bands were polymorphic, and percentage of polymorphic bands were 93.51%, an average of approximately 9.25 bands per primer. DPS software was used to construct a cluster analysis dendrogram. Cluster analysis showed that all germplasms used in this study could be clustered together in the threshold of 82.48 distance. 21 different varieties of Z. jujuba were divided into two groups in the threshold of 65.98 distance.