1. Laboratorio de Genómica Funcional de Leguminosas, Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México Tlalnepantla 54090 Mexico
2. Department of Plant Pathology, Russell Laboratories University of Wisconsin 1630 Linden Dr. Madison WI 53706 USA
3. Department of Bacteriology University of Wisconsin Microbial Science Building, 1550 Linden Dr. Madison WI 53706 USA
4. Royal Botanic Gardens Kew, Richmond Surrey TW9 3AE UK
5. Laboratoire de Recherche en Sciences Végétales (LRSV) Université de Toulouse, CNRS, UPS 24 chemin de Borde Rouge, Auzeville, BP42617 3126 Castanet Tolosan France
6. Centro de Ciencias Genómicas Universidad Nacional Autónoma de México Cuernavaca 62210 Morelos Mexico
7. Department of Agronomy University of Wisconsin 1575 Linden Dr. Madison WI 53706 USA