Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/pbi.13042 This article is protected by copyright. All rights reserved. Stacking three late blight resistance genes from wild species directly into African highland potato varieties confers complete field resistance to local blight races Marc Ghislain 1* , Arinaitwe Abel Byarugaba 2 , Eric Magembe 1 , Anne Njoroge 1 , Cristina Rivera 3 , María Lupe Román 3† , José Carlos Tovar 3‡ , Soledad Gamboa 3 , Gregory A. Forbes 3 , Jan F. Kreuze 3 , Alex Barekye 2 , Andrew Kiggundu 4 1 International Potato Center, P.O. Box 25171, Nairobi 00603, Kenya 2 Kachwekano Zonal Agricultural Research and Development Institute, P. O. Box 421, Kabale, Uganda 3 International Potato Center, P.O. Box 1558, Lima 12, Peru 4 National Agriculture Research Laboratories (NARL), P.O. Box 7065, Kampala, Uganda Present address: † Universidad Nacional Agraria La Molina, Lima 12, Peru ‡ 975 North Warson Road, St. Louis, Missouri 63132, USA *Author for correspondence: m.ghislain@cgiar.org ORCID identifier: https://orcid.org/0000-0001-6485-1494 Key words: GM potatoes, transformation, late blight resistance, Phytophthora infestans