1. State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection, Chinese Academy of Agricultural Sciences; West Yuan Ming Yuan Road Beijing 100193 China
2. Plant Breeding Institute; The University of Sydney; Narellan NSW 2567 Australia
3. US Department of Agriculture; Agricultural Research Service; Wheat Genetics, Quality, Physiology, and Disease Research Unit; the Department of Plant Pathology; Washington State University; Pullman WA 99164-6430 USA
4. State Key Laboratory of Crop Stress Biology for Arid Areas; Northwest Agriculture and Forestry University; Taicheng Road Yangling Shaanxi 712100 China