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. 2024 Nov 28;7:1587. doi: 10.1038/s42003-024-07278-z

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© The Author(s) 2024

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — Each row depicts the N_e estimates per population for a given model of historical migration. WAM, CAM, and ATL represent the three major populations as inferred by ADMIXTURE and fineSTRUCTURE (Fig. 3a). AM represents the ancestral population prior to the split of WAM and CAM. Four models of historical migration were tested: (i) no migration, (ii) unidirectional migration from AM to ATL, (iii) unidirectional migration from ATL to AM, and (iv) bidirectional migration between AM and ATL.