Detected QTL for seed length in soybean cultivar population.

*: Calculated by for main-effect QTL and for epistatic QTL, where f is allelic frequency, a is allelic effect and n and m is the number of alleles at the ith and jth loci. The same is true for the later tables.**: QTL identified by genome-wide association study with the critical value at the 0.05 level of significance determined by 1000 permutation experiments.