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. 2023 Jul 27;7(9):1503–1514. doi: 10.1038/s41559-023-02145-2

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© The Author(s) 2023

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. 1 — a, Present geographic distribution of eastern gorillas, with that of the four gorilla subspecies shown in the inset. The newly sequenced samples are given in black, numbers of previously sequenced eastern gorillas are given in colour. GBG, Gorilla beringei graueri (Eastern lowland gorilla, n = 9); GBB, Gorilla beringei beringei (Mountain gorilla, n = 12); GGG, Gorilla gorilla gorilla (Western lowland gorilla, n = 27); GGD, Gorilla gorilla diehli (Cross River gorilla, n = 1). Shape files for the distribution of gorilla subspecies were obtained from IUCN. b, PCA with PCs 1 and 2 shown. c, PCA with PCs 3 and 4 shown.