Ninety accessions which included Chinese common wild rice (Oryza rufipogon) from 8 provinces and traditional cultivars from lower and middle basins of Yangtze River, southeast of China and Yunnan Province as well as some commercial varieties were analyzed by RAPD with 24 primers. A scattered figure suggesting the indica japonica and wild domestication differentiations among 90 rice accessions was generated based on RAPD data. The results indicated that Chinese common wild rice, indica and japonica accessions were divided into 3 groups respectively. Chinese common wild rice were somewhat closer to the japonica type than the indica type.
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