Figure 2.

Results of structure analysis at K = 3. Each vertical bar corresponds to an individual, and its proportion of membership (q) to each of the three groups are indicated by different colors and correspond to previously identified genetically distinct lineages introduced to New England (Hybrid, red; Atlantic Coastal Plain, blue; Continental, green; see Thum et al. 2011). Individuals are sorted by the population of origin, shown along the x-axis as alternating thick and thin lines. Population codes are given in Table 1.