Fig. 3: Extensive reticulate hybridization during evolution of the genus Xiphophorus.
A Heatplot showing the estimated admixture fraction between two species on the x- and y-axis. Species are listed on the x- and y-axis in the species tree. The values in the matrix (fb) were calculated using Dsuite with the f-branch statistic, referring to excess allele sharing between the branch identified on the expanded tree on the y-axis (relative to its sister branch) and the species identified on the x-axis, indicating the hybrid origin of these alleles. B Reticulate evolution of the X. clemenciae, X. mixei and X. monticolus clade estimated using SNaQ with h = 1. C Reticulate evolution of lineage X. xiphidium estimated using SNaQ with h = 1.
