1. USDA-ARS; Crops Research Lab.; 1701 Centre Ave. Fort Collins CO 80526
2. USDA-ARS, Sugarbeet and Bean Unit, 1066 Bogue St., 494 Plant and Soil Sciences Bldg.; Michigan State Univ.; East Lansing MI 48824-1325
3. BSDF; Crops Research Lab.; 1701 Centre Ave. Fort Collins CO 80526
4. DAFNAE, Dipartimento di Agronomia Animali Alimenti Risorse Naturali e Ambiente, viale Università 16, 35020 Legnaro (PD); Università degli Studi di Padova; Italy
5. Julius Kühn-Institute, Federal Research Centre for Cultivated Plants (JKI), Institute for Breeding Research on Agricultural Crops; Erwin-Baur-Str. 27 D-06484 Quedlinburg Germany
6. USDA-ARS, PWA; Crop Improvement and Protection Research; 1636 E. Alisal St. Salinas CA 93905