Fig. 3

Haplotype analysis of twelve SNPs significantly associated with SP and SP value of different haplotypes. a The physical locations of 12 SNPs and the pairwise LD analysis between these SNPs. The color squares was used to indicate the LD indexed. Red squares without numbers indicated complete LD (D’ = 1, P < 0.01). D’ values were shown in the squares for values < 1.0. b Haplotypes of 200 natural population using the 12 SNPs; 0 indicates a base deletion. c SP among four haplotypes Hap1, Hap2, Hap5 and Hap9 under +P condition. d SP among four haplotypes Hap1, Hap2, Hap5 and Hap9 under -P condition. e The relative value of SP among four haplotypes Hap1, Hap2, Hap5 and Hap9 under two P conditions. Statistical significance was detected by a two-tailed t-test. * and ** significant at 0.05 and 0.01 probability levels, respectively