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Fig. 2 | BMC Evolutionary Biology

Fig. 2

From: Beringian sub-refugia revealed in blackfish (Dallia): implications for understanding the effects of Pleistocene glaciations on Beringian taxa and other Arctic aquatic fauna

Fig. 2

DAPC scatterplot for K = 5 and geographic distribution of genetic clusters. a) DAPC scatterplot for K = 5, depicting the clustering of individuals based on K-means clustering of principal components. Eigenvalues representing between to within group variation for linear combinations of principal components are included in this figure. Cluster 1 “Arctic Coastal Plain” (locations 16-20 [n = 19]); Cluster 2 “Nome” (location 14 [n = 3]); Cluster 3 “interior Alaska” (locations 1-2, 4-6 [n = 21] and 12 [n = 1]); Cluster 4 “Coastal Alaska” (locations 8-12 [n = 17]); and Cluster 5 “West Beringia” (locations 21-22 [n = 19], 7 [n = 2], and 11 [n = 1]). 0062) The sampling locations color-coded to the corresponding clusters in part a), shown on a map of Beringia. Arctic Coastal Plain (red), Nome (yellow), interior Alaska (green), coastal Alaska (blue), and West Beringia (purple). The map includes a -100 meter sea level (dark green layer) corresponding to the last glacial maximum available from the US National Geophysical Data Center

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