1. Department of Science and Technology for Agriculture, Forestry, Nature and Energy (DAFNE); Tuscia University; Viterbo Italy
2. UR0407 Pathologie Végétale; INRA; Montfavet France
3. Department of Biology; Carolina Center for Genome Sciences; Chapel Hill NC 29599 USA
4. Department of Biology; Howard Hughes Medical Institute; University of North Carolina; Chapel Hill NC 29599 USA
5. School of Plant Sciences; University of Arizona; Tucson AZ 85721 USA
6. Department Plant Sciences and Plant Pathology; Montana State University; Bozeman MT 59717-3150 USA