Analysis of genetic diversity in rapeseed
Genetic diversity of 64 rapeseed varieties of Brassica napus L. was analyzed by RAPD. 11 polymorphic primers out of 180 random primers were selected. 120 bands were amplified and 65 bands were polymorphic (54.2％). The number of polymorphic bands of Primer 1946 was the maximum (8 bands). That of Primer 1956 was the minimum (4 bands). The 64 materials were divided into five groups by cluster analysis. The majority of materials in the first, the fourth and the fifth groups were landraces from Sichuan. The materials in the second group were landraces from Sichuan and varieties bred in Sichuan. The materials in the third group were varieties introduced from other countries and landraces from Sichuan. The genetic relationship among different materials displayed in the cluster tree indicated the genetic difference between the landraces of B. napus L. from Sichuan and varieties of B. napus L. introduced from other countries was obvious. That was the same between the landraces from Sichuan and approved varieties in China. The genetic diversity in the landraces from Sichuan was very abundant.
Brassica napus L. Landraces Introduced varieties Genetic diversity RAPD Cluster
PU Xiaobin ZHAO Yun JIANG Liangcai ZHANG Jinfang LI Haojie WANG Maolin ZHANG Qixing CAO Yi LI Yiyi LI Jiang LI Xiaoyan
Crop Institute, Sichuan Academy of Agricultural Sciences, 610066 Chengdu, China;College of Life Scie College of Life Science, Sichuan University, 610064 Chengdu, China Crop Institute, Sichuan Academy of Agricultural Sciences, 610066 Chengdu, China
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
812-816
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）