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. 2017 Aug 18;8:1412. doi: 10.3389/fpls.2017.01412

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Copyright © 2017 Shi, Hao, Zhang, Cheng, Zhang, Liu, Yi, Cheng, Sun, Xu, Zhang, Cheng, Guo and Guo.

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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Population structure of 264 released cultivars based on 3,656 SNP markers with a whole-genome coverage. (A) Genetic structure produced by Structure V2.3.2, (B) Number of sub-populations estimated by ΔK at a range of K-values.