1. School of Applied Biosciences; Kyungpook National Univ.; Daegu 702-701 Republic of Korea
2. Division of Plant Biotechnology; College of Agriculture and Life Science, Chonnam National Univ.; Gwangju 500-757 Republic of Korea
3. Dep. of Biotechnology; Chonnam National Univ.; Yeosu 550-749 Republic of Korea
4. School of Biotechnology; Yeungnam Univ.; Gyoungsan Gyoungbuk 712-749 Republic of Korea
5. Dep. of Southern Area Crop Science; National Institute of Crop Science, RDA; Milyang 627-803 Republic of Korea
6. Division of Plant Sciences; Univ. of Missouri-Delta Center; Portageville MO 63873 USA