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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: 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 sensitivity

Fig. 4

Photinus pyralis population structure. a) Neighbor-joining dendrogram of 154 P. pyralis from 12 populations. Unrooted dendrogram constructed from genetic distances between individuals [94] based on 1977 neutral SNPs. Individual specimens are labeled using colored circles that correspond to their population of origin. b) Principal components analysis of neutral SNPs: PC1 and PC2. Inset shows the eigenvalues of the retained components. Percent variance attributed to each component given in parentheses. Individual specimens are labeled using colored circles that correspond to their population of origin. c) STRUCTURE results with K = 2. Posterior probabilities of membership in each of 2 clusters across 154 individuals. Columns show stacked probabilities of membership for each individual. Dark lines separate individuals by population of origin, indicated by the locality code below. Populations are ordered left to right by Great Circle distance from VATX. The three clusters roughly correspond to two regions: South-West (red) and North-East (blue), with evidence for admixture between adjacent regions. d) Map showing the color key for sampled populations. This map was generated using the maps package in R

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BMC Ecology and Evolution

ISSN: 2730-7182

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