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. 2020 Sep 16;11:4661. doi: 10.1038/s41467-020-18335-6

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© The Author(s) 2020

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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Fig. 4 — a The PCA of Bronze Age, Steppe and Early Farmer samples exhibits a horseshoe pattern, b FA for the samples, c Steppe ancestry estimates for Bronze Age England samples computed from Factor 1 (x-axis: sample IDs). The dashed line corresponds to the estimate computed by the qpAdm program using Yamnaya Samara and Anatolia (N) as ancestors, and Yoruba, Russia Sidelkino (EHG), France-Ranchot (WHG) as outgroups, d FA of samples from Bronze Age and Neolithic Great Britain with three ancestral groups. The ticks on the triangle sides indicate the proportions of ancestry from HG and Yamnaya. Samples: EBA (Early Bronze Age): 11, EBA Bell Beaker: 16, MBA (Middle Bronze Age, dark green stars): 7, Great Britain (N) Neolithic England and Scotland: 28, HG (Hunter Gatherers, Serbia): 31.