1. State Key Laboratory of Herbage Improvement and Grassland Agro‐Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, Western China Technology Innovation Centre for Grassland Industry, College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou China
2. Department of Plant Biology Rutgers University New Brunswick New Jersey USA
3. Pratacultural College Gansu Agricultural University Lanzhou China
4. Grassland Research Center of National Forestry and Grassland Administration Chinese Academy of Forestry Beijing China