Fig. 4.

Different types of evidence of recent gene flow in the CMFs. Hierarchical structure among and between CMF samples estimated by fineRADstructure. Results of the Bayesian assignment analysis (STRUCTURE) for CMFs (and independently for each section). Haplotype co-ancestry matrix based on 6090 SNPs with individual A. equi-trojani_94_1 removed due to excessive missing data. The colour in the heat map corresponds to the number of haplotypes imported from a donor genome to a recipient genome. High levels of haplotype co-ancestry among distantly related species (e.g. A. numidica and A. alba) suggest secondary contacts.