1. Divisions of Plant Science and Biochemistry, National Center for Soybean Biotechnology, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA.
2. Division of Plant Science, 46 Agriculture Building, University of Missouri, Columbia, MO 65211, USA.
3. Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Building 6-421, Jinjudaero 501, JinJu, Gyeongsangnam-do, 660-701, South Korea.
4. Department of Statistics, 134I Middlebush Hall, University of Missouri, Columbia, MO 65211, USA.