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Phylogeny of salmonids and evolution of sdY. Phylogram of the species investigated in this study plotted with the presence (+)/absence (−) of sdY and its sex-specificity (M: male specific, M, F: present both in males and females. The salmonid phylogeny and the timing of divergence of species were based on Crête-lafrenière and collaborators (Crête-Lafreniere et al. 2012). Divergence time between Esocidae and Salmonidae was based on Near and collaborators (Near et al. 2012).
