1. Department of Microbiology and Plant Pathology, University of California, Riverside, California, USA
2. Institute for Integrative Genome Biology, University of California, Riverside, California, USA
3. School of Integrative Plant Science, Cornell University, Geneva, New York, USA
4. National Center for Genome Resources, Santa Fe, New Mexico, USA
5. Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, Tennessee, USA