Fig. 1: Sampling and population structure of red river hogs and bushpigs. | Nature Communications

Fig. 1: Sampling and population structure of red river hogs and bushpigs.

From: African bushpigs exhibit porous species boundaries and appeared in Madagascar concurrently with human arrival

Fig. 1

a Sampling map of all 67 pig individuals used within this study, coloured by country of origin. Ranges for red river hogs and bushpigs are shaded in red and blue, respectively52,104. b Principal component analysis (PCA) for 67 pigs, showing the first two principal components, coloured by country. c Unrooted neighbour-joining tree based on pairwise identity-by-state (IBS), coloured by country (n = 67). d Inferred ancestry proportions for 54 unrelated samples using NGSadmix32, assuming K = 2 (upper barplot) and K = 8 (bottom barplot). Coloured bars indicate estimated admixture proportions with the number of ancestries equal to K. Coloured lines above and below population labels and illustrations indicate species designations; red–red river hogs, blue–bushpigs. Pairwise correlations of residuals as estimated by evalAdmix33 are shown above and below the respective NGSadmix barplots ranging from −0.1 to 0.1 (colour scale). Gh Ghana, To Togo, Ga Gabon, DRC Democratic Republic of Congo, Zi Zimbabwe, SA South Africa. Bushpig and red river hog illustrations are used with express permission from the author, Jonathan Kingdon2.

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