1 Applied Biotechnology Laboratory, International Potato Centre, P.O. Box 1558, Lima, 12, Peru.
2 Department of Plant and Environmental Sciences, DynaMo Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.
3 Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, 12, Peru.
4 Pathology Department, Instituto Nacional de Enfermedades Neoplásicas, Av. Angamos Este 2520, Lima, 15038, Peru.
5 Department of Plant and Environmental Sciences, Copenhagen Plant Science Center & Section for Plant Biochemistry, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg, Denmark.
6 Chemistry Section, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, Lima, 15088, Peru.
7 Applied Biotechnology Laboratory, International Potato Centre, P.O. Box 1558, Lima, 12, Peru. m.ghislain@cgiar.org.
8 Department of Plant and Environmental Sciences, DynaMo Center, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark. bah@plen.ku.dk.