1. Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
2. Department of Biology and Chemistry, California State University Monterey Bay, Seaside, California, USA
3. Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
4. Department of Microbiology and Molecular Genetics and Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan, USA
5. Department of Plant Pathology, University of Minnesota, St. Paul, Minnesota, USA
6. Department of Biology, Tufts University, Medford, Massachusetts, USA