1. School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, USA
2. Department of Mathematics, Michigan Technological University, Houghton, MI, USA
3. Department of Plant Pathology, Kansas State University, Manhattan, KS, USA
4. Plant Biology Division, Bioinformatics and Computational Biology Lab, Noble Research Institute, Ardmore, OK, USA
5. Department of Botany and Plant Sciences, University of California, Riverside, CA, USA
6. Life Science and Technology Institute, Michigan Technological University, Houghton, MI, USA
7. Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, P.R. China