Genetic Diversity of Main Parent of Wheat ‘Ai meng niu’ and its Pedigree on SSR Markers
Wang Shanshan1 Li Xiuquan2 Tian Jichun1* 1 State Key Laboratory of Crop Biology of Shandong Agricultural University, Group of Quality Wheat Breeding, Taian, 271018; 2 Institute of Crop Gemplasm Resources, The Chinese Academy of Agricultural Sciences, Beijing, 100081
Genetic diversity in 91 accessions of ‘Ai meng niu’ and its pedigree was assessed using SSR markers. The 20 pairs of SSR informative primers generated a total of 120 alleles. Each pair of SSR primer could detect 3 to 9 alleles with an average of 6.0. Genetic similarities among 91 accessions ranged from 0.411 to 0.961, which indicated that genetic difference among them was significant. Ai meng niu and its Pedigrees could be clustered into four groups with UPGMA cluster analysis. It could be a suitable index for genetic divergences among wheat cultivars. The genetic diversities of Ai meng niu's Pedigree have the tendency of increasing with time slightly, This is related with using Ai meng niu and its Pedigrees repeatly of breeding units. A set of derived lines have been developed from crosses between Aimengniu and Shannong Fu 66, Shannong Fu 63, selecting parents of hybrid reasonably is significant.