Figure 3From: Widespread horizontal genomic exchange does not erode species barriers among sympatric ducksVenn diagram of shared SNPs with mallard by the four other Anas species. A core of 18 SNPs was polymorphic in all four Anas species. The closer phylogenetic relationship of Anas acuta and Anas crecca to Anas platyrhynchos is reflected in their polymorphism sharing pattern. Abbreviations as in Figure 2.Back to article page