1. Centre for the Analysis of Genome Evolution and Function; Department of Cell & Systems Biology; University of Toronto; Toronto; ON; M5S 3B2; Canada
2. Department of Forest Ecosystems and Society; Oregon State University; Corvallis; OR; 97331-5752; USA
3. UFR-Faculté des Sciences; UPRES EA 1207 ‘Laboratoire de Biologie des Ligneux et des Grandes Cultures’ (LBLGC); INRA, USC1328 ‘Arbres et Réponses aux Contraintes Hydrique et Environnementales’ (ARCHE); University of Orléans; Rue de Chartres; BP 6759; F-45067; Orléans; France
4. Department of Biology and Environment; Norwegian Forest and Landscape Institute; PO Box 115; N-1431; Aas; Norway
5. Epigenetic Regulations and Seed Development; Institut de Recherche pour le Développement; UMR232 ERL5300 CNRS-IRD; 911 Av. Agropolis; 34394; Montpellier; France
6. School of Life Sciences; University of Warwick; Wellesbourne; Warkwick; CV35 9EF; United Kingdom
7. Platform for Integrated Clone Management (PICME); Health & Environment Department; AIT Austrian Institute of Technology GmbH; Konrad-Lorenz-Straße 24; 3430; Tulln; Austria
8. Cancer Epigenetics Laboratory; Institute of Oncology of Asturias (IUOPA-HUCA); University of Oviedo; Spain
9. Department of Life Sciences; University of Alcalá; Ctra. Madrid-Barcelona Km. 33,600; 28871; Alcalá de Henares; Madrid; Spain
10. Department of Plant and Environmental Sciences; Norwegian University of Life Sciences; PO Box 5003; N-1432; Ås; Norway
11. Department Plant Growth & Development; Institute of Agriculture and Fisheries Research; Caritasstraat 21; 9090; Melle; Belgium