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. 2016 Apr 21;7:484. doi: 10.3389/fpls.2016.00484

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Copyright © 2016 Syring, Tennessen, Jennings, Wegrzyn, Scelfo-Dalbey and Cronn.

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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Principal components (PCs) tied to heterozygosity, latitude, and longitude. Samples are colored by geographic group as in Figure 1. (A) PC 1 vs. heterozygosity. (B) PC2 vs. latitude. (C) PC3 vs. latitude. (D) PC4 vs. longitude.