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Heatmap of pairwise relatedness (Huang et al. 2014) between diploid and autotetraploid Dactylorhiza accessions. Ari = D. aristata, Eux = D. euxina, Fol = D. foliosa, Fuc = D. fuchsii, Ger = D. gervasiana, Ibe = D. iberica, Inc = D. incarnata, MacCN = central-northern D. maculata, MacW = western D. maculata, Sac = D. saccifera, Sam = D. sambucina, Umb = D. umbrosa, and Vir = D. viridis. To optimize color resolution, the estimates on the diagonal were excluded.
