Fig. 2
From: A reappraisal of the phylogenetic placement of the Aquilegia whole-genome duplication
Phylogenomic analyses of syntenic duplicates from Aquilegia. a–d Histograms and violin plots of rate-corrected Ks of gene pairs from intraspecific and interspecific synteny in Aquilegia and Nelumbo (a, b) and in Aquilegia and Vitis (c, d). Median Ks values are marked by the black line in violin plots. **p value < 0.0001. e A species tree based on a concatenated alignment of 697 strict single-copy genes. f Example gene tree supports the hypothesis of Aquilegia WGD only shared by Aquilegia and Papaver. g Example gene tree supports the hypothesis of Aquilegia WGD being Aquilegia-specific. h Example gene tree supports the hypothesis of Aquilegia WGD occurring in the ancestral eudicot. Node values: bootstraps. Branch length: the number of amino acid substitutions per site. Colored dots: WGD or triplication. Arrow: the difference in placement of the Aquilegia WGD