1. School of Food Science, Washington State University, Pullman, WA 99164-6420, U.S.A.; currently, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
2. Department of Crop and Soil Sciences, Western Wheat Quality Laboratory, Washington State University, Pullman, WA 99164-6420, U.S.A.
3. U.S. Department of Agriculture (USDA), Agricultural Research Service (ARS)-CSWQRU, Wooster, OH 44691, U.S.A.