1. Triticeae Research Institute, Sichuan Agricultural Univ.; 211 Huimin Rd., Wenjiang Chengdu Sichuan 611130 P.R. China
2. Eastern Cereal and Oilseed Res. Center; Agriculture and Agri-Food Canada; 960 Carling Ave. Ottawa ON K1A 0C6 Canada
3. Wheat Improvement Flagship, National Res. Council of Canada; 110 Gymnasium Place Saskatoon SK S7N 0W9
4. School of Agriculture and Food Sciences, Univ. of Queensland; Brisbane QLD 4072 Australia
5. School of Plant Biology, Univ. of Western Australia; Perth WA 6009 Australia