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. 2023 Feb 13;14:26. doi: 10.1186/s40104-022-00826-9

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© The Author(s) 2023

Open AccessThis 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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Experimental setup and population genetic structure. A Knob on head of domestic geese, the Chinese domestic goose is on the left, and the European domestic goose is on the right. B Location of the samples used for this study. A total of 74 geese, including swan geese (n = 4; origin, China), greylag goose (n = 1; origin, Europe), 11 Chinese goose breeds (n = 10 of YL; n = 3, each a different breed), and three European domestic goose breeds (n = 29) were used. See Additional file 1: Table S1. C Genomic SNPs of five populations. D PCA plot of geese breeds. E Population genetic structure of geese. The length of each colored segment represents the proportion of the individual genome from the ancestral populations (K = 2–4), population names are at the bottom. F LD decay patterns