Fig. 5From: Molecular variation across populations of a widespread North American firefly, Photinus pyralis, reveals that coding changes do not underlie flash color variation or associated visual sensitivityDistribution of allele frequencies across populations. Pie charts show allele frequencies across populations for the three adult luciferase SNPs with evidence for divergent selection: a) site 603, b) site 723, c) site 1780. Light and dark represent the frequencies of A and G alleles, respectively. Maps were generated using the R package ggmap [103] using the parameters: maptype = “satellite”, source = “google”Back to article page