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Figure 1 | BMC Evolutionary Biology

Figure 1

From: Rampant historical mitochondrial genome introgression between two species of green pond frogs, Pelophylax nigromaculatus and P. plancyi

Figure 1

Species distribution map and sampling sites of Pelophylax fukienensis, P. nigromaculatus and P. plancyi. Cross = Pelophylax fukienensis; Circle = P. plancyi; Triangle = P. nigromaculatus. Solid triangles represent samples from GenBank. Only selected sampling sites from GenBank are presented here to demonstrate geographic coverage. The red dotted lines outline the distribution of two ancient lineages of "original" mitochondrial genomes, which are possibly associated with the assumptive Korean refugium and the central China refugium during glaciations.

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