1. Department of Chemistry, University of California, Davis, California 95616, United States
2. Innovative Genomics Institute, 2151 Berkeley Way, Berkeley, California 94704, United States
3. The Genome Center, Department of Plant Sciences, University of California, Davis, California 95616, United States
4. Departments of Molecular and Cellular Biology, Medical Microbiology and Immunology, University of California, Davis, California 95616, United States