1. The Sainsbury Laboratory; Norwich Research Park; NR4 7UH; Norwich; UK
2. The Plant Breeding and Acclimatization Institute; Research Center Młochów; Platanowa 19; 05-831; Młochów; Poland
3. Information and Computational Sciences; James Hutton Institute; DD2 5DA; Dundee; UK
4. The Genome Analysis Centre; Norwich Research Park; NR4 7UH; Norwich; UK
5. Cell and Molecular Sciences; James Hutton Institute; DD2 5DA; Dundee; UK