Fig. 6
From: Hybridisation has shaped a recent radiation of grass-feeding aphids
Excess allele sharing between Sitobion lineages. The heatmap shows the magnitude of the fb ratio [74] between each branch on the y-axis and the sample on the x-axis. Grey squares indicate comparisons that cannot be made. Comparisons where corresponding D statistics (Additional File 9: Table S8) are non-significant (p > 0.01) are set to zero. Tip names correspond to populations/lineages identified in Fig. 5a