Genetic diversity among Chinese oilseed accessions of Brassica rapa as determined by RAPD markers
我国部分白菜型油菜RAPD的研究

The genetic diversity among 34 Chinese oilseed accessions (mainly from Hunan and Hubei Provinces) of B.rapa was analyzed by RAPD technique and statistical methods. A general molecular method for assessment of genetic diversity was established from this research. Cluster analysis showed that the genetic variation among oilseed accessions of B.rapa was closely related with their eco geographic distribution; extensive variation existed among the accessions from Hunan and Hubei Provinces; 34 accessions were divided into eight groups at DNA level. The application of results to selection of parents in breeding program was discussed.