Fig. 1From: Whole genome comparisons reveal panmixia among fall armyworm (Spodoptera frugiperda) from diverse locationsPrincipal component analysis (PCA) plot of 51 Spodoptera frugiperda samples (3 samples removed due to missing rate ≥ 50%) based on 2,762,958 SNPs. Country of origin and host strain as determined by the nuclear Tpi marker are visualized by color and shape, respectively, as shown in the legendBack to article page