XVI International Botanical Congess

Choosing Podocarpus imbricatus,Podocarpus nagi, Podocarpus fleuryi, Podocarpus neriifolius and Podocarpus macrophyllus as material, 80 primers from 4 Operon kits were screened by RAPD method.9 selected primers were able to produce clear polymorphic patterns. The results generated by using UPGMA algorithm to cluster genetic distances calculated from RAPD data imply:1)the studied species are apparently clustered into three subgroups, it supports the treatment of constructing corresponding sections, Sect.Dacrycarpus, Sect.Nageia and Sect.Podocarpus in genus Podocarpus,2)it is unreasonable to separate nageiaoids from Podocarpus and to establish a new family, Nageiaceae.