1. Department of Energy, Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, Madison, Wisconsin 53726, USA
2. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Rd, Tianhe District, Guangzhou, 510640, P.R. China
3. Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, 611-0011, Japan
4. Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Gent, Belgium
5. Center for Plant Systems Biology, VIB, B-9052 Gent, Belgium
6. USDA-Forest Service, Southern Research Station, 521 Devall Drive, Auburn, AL 36849, USA
7. Department of Biochemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
8. Department of Biological System Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA