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. 2017 Oct 17;8:1748. doi: 10.3389/fpls.2017.01748

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Copyright © 2017 Ndjiondjop, Semagn, Gouda, Kpeki, Dro Tia, Sow, Goungoulou, Sie, Perrier, Ghesquiere and Warburton.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Plots of PC1 (14.6% of variation) and PC2 (5.8%) from principal component analyses of 2,179 O. glaberrima accessions genotyped with 3,834 polymorphic SNPs. The plots are based on group membership from (A) cluster analysis, (B) STRUCTURE at K = 5, (C) country of origin, and (D) ecology. All countries with < 40 accessions were combined to “others.” In the ecology plot, “others” refers to accessions from floating, mangrove, deep and shallow forest swamp, and hydromorphic ecologies, each with smaller number of accessions. See Supplementary Table S1 for details.