File:Comprehensive description of population structure across Britain and Ireland.png

English: A comprehensive description of population structure across Britain and Ireland. (A) The dendrogram with each branch as one k = 65 final cluster identified by fineSTRUCTURE. Some clusters have been merged, resulting in k = 43 clusters. Cluster membership count is shown in parentheses. Merged clusters are indicated throughout by the same colored shape and merge label. (B) The average geographic position of 2,429 British and Irish individuals’ ancestors’ birthplaces, with cluster membership shown. The ancestry information available for some individuals’ ancestral place of birth are regional in resolution; therefore, a random jitter was introduced to these individuals’ positions. The exit of the Firth of Forth is indicated by the red arrow. The administrative boundaries of mainland Britain and Ireland were sourced from the R package, rworldxtra. (C) The genetic space positions of 2,544 British and Irish individuals as calculated in t-distributed stochastic neighbor embedding t-SNE analysis of the coancestry matrix obtained by ChromoPainter. Shown plotted are the first and second t-SNE dimensions. All plots were generated in R with the ggplots2 package.