Analysis of hybrid localities using Structure. Allele frequencies were estimated only from non-hybrid individuals, and then used to estimate hybrid ancestry. ‘H’ above a locality denotes putative hybrid localities based on morphology, mtDNA, and/or nuclear sequences. * denotes mean assignment to parental species significantly less than 0.95; ** denotes significantly less than 0.9. Species and locality codes follow Table 1.
Willis et al. BMC Evolutionary Biology 2012 12:96 doi:10.1186/1471-2148-12-96