Bringing wild alleles back into the primary gene pool : Introgression of high protein content from Manihot esculenta ssp labelillifolia into cassava (Manihot esculenta Crantz) - Akinbo, Olalekan; Labuschagne, Maryke T.; Ospina, C.; Marín, J.A.; Gutiérrez Artunduaga, Janneth Patricia; Fregene, Martin A. (International Center for Tropical Agriculture, 2008)