1. Dep. of Plant Breeding and GeneticsCornell Univ.IthacaNY14853USA
2. CIMMYTKm. 45, Carretera México‐Veracruz, El BatánTexcocoCP56237Mexico
3. Dep. of Plant Pathology and Dep. of AgronomyKansas State Univ.ManhattanKS66506USA
4. USDA–ARS R.W. Holley Center for Agriculture and HealthIthacaNY14853USA