Abstract: The widely genetic diversity in maize population is the important basis for maize breeding. To clear the genetic basis and genetic diversity is very important for germplasm enhancement and improvement of maize. In this research,SSR molecular marker technology and the best sampling method,which DNA was extracted from five samples in each maize population and mixture of leaves of 12 plants, was adopted. The genetic diversity from 12 maize populations and 6 control inbred lines were analysed. 86 pairs SSR primers were filtered in this experiment, 391 polymorphic bands were gained. The number of alleles ranged from 2 to 11,the average is 5.76.The studied 12 maize populations and 6 control inbred lines could be partitioned into 6 class groups on the basis of 0. 67 for the GD value.Meng A,Meng B,Zhongzong 5 and Huangzao 4 are belonged to one group,Meng C,Mengqun 1 and Ye 478 are belonged to the second group,Mengqun 2,Mengqun 4,C Qun 1,C Qun 2 and Mo17 are belonged to the third group,Mengqun 3,C Qun 3,Zhongzong 7 and B73 are belonged to the fourth group,Dan 340 and Qi 319 are belonged to the fifth and sixth group,respectively. The partition is similar with the partition based on the yield SCA effect.

Key words: Maize population, SSR marker, Genetic diversity

CLC Number: 

• S513