1. Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, P.R. China
2. Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Department of Plant Pathology, South China Agricultural University, Guangzhou, P.R. China
3. Department of Biological Sciences, Vanderbilt University, Nashville, TN
4. Laboratory of Genetics, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI