1. Crop Science, Institute of Agricultural Sciences, ETH Zurich , Zurich , Switzerland
2. Molecular Plant Breeding, Institute of Agricultural Sciences, ETH Zurich , Zurich , Switzerland
3. Bean Program, Crops for nutrition and health, International Center for Tropical Agriculture (CIAT) , Cali , Colombia
4. Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH , Jülich , Germany