Fig. 1. Frequency distribution of (a) daidzein, (b) genistein, (c) glycitein and (d) total isoflavone content in soybean seeds for 207 RILs derived from the cross AC756 x RCAT Angora. Values next to the x axis are the upper limit of each category. Parental values are indicated for Harrow (H) and Talbotville (T).