Genetic relationship analysis of melon by RAPD marker

Twenty-two melon varieties were used to analyze genetic diversity by RAPD marker. Results showed that 189 DNA bands were amplfied with 22 random primers,of which 143 were polymorphic. An average proportion of polymorphic loci was 75. 66%. Twenty-two varieties and inbreds were classified into two sub-groups,which were thick-peel melon and thin-peel melon. The cantaloupe was far from others a-mong thick-peel melons. And then hetaomi,huanghou ,and the rest melons were classified into sub-groups. This result approached the classification of the traditional method according to characters in field.