Fig. 2
PCA visualizing patterns of autosomal genetic structure within fall armyworm samples collected in the US. Circle markers represent the C-strain, square markers represent the R-strain, and triangle markers indicate putative hybrids. Colors indicate geographic regions where samples were collected. PC1 neatly divides the C-strain from the R-strain, while geographic regions within the C-strain cluster along PC2. No geographic clustering is seen in the R-strain. Fst values differentiating population clusters can be found in Table S1