Soybean isoflavones include daidzein, genistein and glycitein with their glycosides, and their malonated derivatives are the main polyphenolic compounds that are helpful for human health. Our research objective was to investigate the differentitation of soybean isoflavones contents of breeding populations between high and low isoflavones contained soybean. Isoflavones contents in soybean are a wide range from 500 to 7000 ㎍/g. In this study, we used Ilmi (Isoflavones content, 3.108 ㎍/g) as male parent and Dajin (Isoflavones content, 578 ㎍/g) as female parent. From these varieties, we got 165 breeding lines which have isoflavones content range from 472 to 2973 ㎍/g. Isflavone contents in breeding lines showed normal distribution.

• Byong Won Lee(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA) Corresponding Author
• Myeong Gi Jong(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• Min Ko(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• Hyun Tae Kim(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• Won-Young Han(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• Sang-Ouk Shin(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• Hong Tae Yoon(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)
• In Youl Baek(Department of Functional Crop Science, Nat’l Institute of Crop Science, RDA)