01345nas a2200157   4500008004100000022001400041245005800055210005600113300001200169490000700181520088200188100002701070700002801097700002401125856003801149       2007                        eng d  a0013-000100aGenetic variation in Vanilla planifolia (Orchidaceae)0 aGenetic variation in Vanilla planifolia Orchidaceae  a328-3360 v613 aVanilla planifolia, a highly prized tropical crop, produces commercial vanilla. We investigated RAPD genetic diversity and geographical structure within V. planifolia. Multivariate analyses revealed three separate geographical groups of V. planifolia: a) a Costa Rican group; b) a Mexican group consisting only of cultivated plants from north of the Trans-Mexican Volcanic Belt; and c) a Mexican group from Oaxaca, Chiapas, and Quintana Roo, which are wild and wild-sourced cultivated plants. It appears likely that human action has resulted in movement of northern Mexican plants into the region south of the Volcanic Belt. When supposed translocants are included, a significantly higher genetic diversity is observed south of the Volcanic Belt compared to northern Mexico. Furthermore, cultivar names used in V. planifolia do not appear to reflect genetically defined groups.1 aSchlueter, Philipp, M.1 aArenas, Miguel, A. Soto1 aHarris, Stephen, A.  u<Go to ISI>://WOS:000252527600002