1. Department of Plant Sciences, Norwegian University of Life Sciences, 1433 Ås, Norway
2. Njøs Fruit and Berry Centre, 6863 Leikanger, Norway
3. Norwegian Institute for Agricultural and Environmental Research, Genetics and Biotechnology, 7500 Stjørdal, Norway
4. Department of Plant Breeding, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden
5. Graminor Breeding Ltd., 2322 Ridabu, Norway