1. State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University , No. 51, Hexing Road, Harbin, Heilongjiang 150040 , China
2. Citrus Research and Education Center, University of Florida , Lake Alfred, FL 33580 , USA
3. Department of Plant Pathology, Kansas State University , Throckmorton Center, 116 Ackert Hall, Manhattan, KS 66506-5502 , USA
4. College of Life Science, Northeast Forestry University , No. 26, Hexing Road, Harbin, Heilongjiang 150040 , China
5. College of Forest Resources and Environmental Science, Michigan Technological University , 1400 Townsend Dr, Houghton, MI 49931 , USA