Distribution of 57 MLST-based <i>Geosmithia morbida</i> haplotypes in the United States.

<p>The size of wedges in each pie chart is proportional to the number of isolates. Haplotype colors relate to genetic clusters identified in the four-cluster-MLST-DAPC model where cluster 1 = shades of blue, cluster 2 = shades of red/brown, cluster 3 = shades of yellow, and cluster 4 = shades of green. Callouts are color-coded according to the three-region geographic-Hudson’s Permtest model, where: 1) blue = NM_AZ, central CA, northern CA, northern CO, and TN; 2) green = central AZ; and 3) red = southwestern CA, OR_WA, and southern CO. Callouts in white indicate regions not assessed by using Hudson’s Permtest. Counties are color-coded as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0112847#pone-0112847-g001" target="_blank">Figure 1B</a>. (U.S. map adapted from US Census Bureau at <a href="https://www.census.gov/" target="_blank">https://www.census.gov/</a>).