Fig. 3. Scenario 9 in Inferring Ancestry and Divergence Events in a Forest Pest Using Low-Density Single-Nucleotide Polymorphisms

Fig. 3. Scenario 9 was identified as the 'best' from 11 competing phylogeographic scenarios. This scenario represents an east-to-west colonization route with stable population sizes in which cluster 4 is derived from clusters 1 and 3 through admixture. Terminal branch labels are consistent with the five STRUCTURE clusters identified (Fig. 1). T = time expressed as number of generations assuming one generation per year; R = inferred migration rate.