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. 2017 Oct 12;18:777. doi: 10.1186/s12864-017-4173-9

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 5 — Plot of PC1 (7.1%) and PC2 (4.5%) from principal coordinate (PC) analysis based on genetic distance matrix calculated from 220,878 SNPs. Only inbred lines that belongs to heterotic group A and B are shown in pink and green font, respectively. Note that inbred lines in heterotic group B are primarily divided in two subgroups, while those in heterotic group A belong to a single group (see Additional file 1 for details)