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. 2019 Aug 13;9:11743. doi: 10.1038/s41598-019-48205-1

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Dendrogram produced from the hierarchical cluster analysis showing the two clusters. One cluster (red) groups Peruvian coastal samples (Ancon and MakaTampu) and the two highland (Cajamarca from Peru and Northern Chile) samples. The coastal Ecuador sample and the Patagonian sample are closest to the first cluster. The second cluster (blue), groups the Chichen-Itza sample from the Yucatan and the Northern South American sample, which is comprised of combined samples from Venezuela and Colombia. All other samples are distinct with the most dissimilar being the Mexican sample from Michoacán.