Fig. 4

Coincidence of ancestral allele positions and ancestral alleles (percentage) among the studies for ancestral alleles with high confidence sites, i.e., ancestral alleles with a probability ≥ 0.8 and observed in at least six of the seven out-species included in the present study, and with a probability ≥ 0.8 in Xiang et al. [20]. Rocha et al. [10] and Naji et al. [21] do not provide probability estimates/confidence level of ancestral alleles and thus the whole list from these studies was used