ZF351 expression and correlation with seed oil content in wild and cultivated soybeans. A, ZF351 transcript levels in H5 seeds of wild soybean accessions (n = 51) and cultivated soybean accessions (n = 48). B, Pearson correlation analysis (r) between seed oil content of soybeans and ZF351 expression level of H5 seeds. Asterisks indicate significant differences (**, P < 0.01 and ***, P < 0.001).