Fig. 4.
Correlation between SoyWRKY15 gene expression and seed size. (A) SoyWRKY15a. (B) SoyWRKY15b. (C) SoyWRKY15c. (D) SoyWRKY15d. The expression level of each gene at the F7 stage was detected in 73 accessions of G. soja (pink background) and 48 accessions of G. max (green background). The mean relative expression and the SD are presented (n=3). The Pearson correlation coefficient of gene expression and 100-seed size (r) and P-value are given in each background. The P-value in red indicates the significance of the differential gene expression between wild and cultivated soybeans. All related information is presented in Supplementary Table S1.