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. 2013 Jun 20;14:200. doi: 10.1186/1471-2105-14-200

Figure 3.

Figure 3

Example of population structure. This phylogenetic tree shows a form of population structure which impacts the correlation structure among the trait values. Six particular subpopulations are shown through the six groups of individuals present in the tree. The splits showing the six groups are denoted by hash marks. Notice that the underlying population structure is not necessarily shown directly in the evolutionary history of a SNP, but has a strong influence on the phylogenetic tree.