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What Is the Origin of the European Potato? Evidence from Canary Island Landraces

^a Centro de Conservación de la Biodiversidad Agrícola de Tenerife, Carretera Tacoronte-Tejina, 20 A. Tacoronte, 38.350, Tenerife, and Univ. of La Laguna, ETSIA, Carretera de Geneto 2, Campus de Anchieta, 38206, La Laguna, Tenerife
^b International Potato Center, P.O. Box 1558, La Molina, Lima 12, Peru
^c USDA-ARS, Dep. of Horticulture, Univ. of Wisconsin, 1575 Linden Dr., Madison, WI 53706-1590

View larger version (45K): [in this window] [in a new window]   Figure 1. Neighbor-joining tree of potato (Solanum tuberosum L.) landrace cultivar groups from the Canary Islands (CV accessions) and from South America (seven-digit accessions) corresponding to Table 1, with bootstrap values (1000 replicates) in bold italic. The letters T and X after the accessions refer to the presence or absence, respectively, or to a 241-bp chloroplast DNA deletion generally characteristic of germplasm from lowland south-central Chile (Kawagoe and Kikuta, 1991; Hosaka, 2002, 2003), in contrast to germplasm from higher elevations in the Andes from western Venezuela to northern Argentina.