Observed heterozygosity in relation to ΔTmH DNA-DNA hybridisation distance between source and test species for 23 Charadriiformes microsatellite loci. Size of circles is proportional to the number of data points at a given location. The trend line was drawn using predicted values from generalised linear models for each of the three species separately and from predicted values from a General Linear Mixed model for all species combined, including species and locus as hierarchical random factors.
Küpper et al. BMC Genomics 2008 9:502 doi:10.1186/1471-2164-9-502