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. 2020 Apr 23;37(7):2099–2109. doi: 10.1093/molbev/msaa103

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© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — The genetic origin of Chinese goats. (a) Locations and ages of all ancient samples used in this study. All ancient Chinese goats are labeled, and the numbers of genomes reported are in parentheses. (b) Principal component analysis (PCA) with modern globally distributed goats, ancient Chinese goats, and Neolithic goats around the Fertile Crescent. (c) Allele sharing between Chinese goats and Neolithic goats around the Fertile Crescent. A negative D statistic indicates a higher level of allele sharing between Chinese goats and Neolithic East goats. (d) Allele sharing between Chinese goats and ancient goats from different time periods in the eastern Fertile Crescent. A negative D statistic indicates a higher level of allele sharing between Chinese goats and Chalcolithic Iranian goats. Standard errors are shown with bars. Statistics with a |Z score| <2 are shown with unfilled symbols.