1 Centro de Biotecnología y Genómica de Plantas (CBGP, UPM-INIA), Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain.
2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain.
3 School of Forest Resources and Conservation, University of Florida, Gainesville, FL, United States.
4 Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium.
5 Center for Plant Systems Biology, VIB, Ghent, Belgium.
6 Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, United States.
7 Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, United States.