Figure 4From: Gene flow persists millions of years after speciation in HeliconiusbutterfliesGene genealogies for cubitus interruptus and white. Across loci, haplotypes from H. hecale and the melpomene/cydno clade were reciprocally monophyletic except for at cubitus interruptus and white [24]. The lack of association between species and tree topology for these two loci is indicative of interspecific gene flow. Nodes with posterior probabilities > 0.60 are labeled.Back to article page