Fig. 3From: A comparative analysis of heart microRNAs in vertebrates brings novel insights into the evolution of genetic regulatory networksExpression level and the number of predicted targets of miRNAs with conserved and group-specific expression in the heart of vertebrates. The number of conserved and group-specific miRNAs analyzed in each species is indicated at the top of the plots. Violin plots of the expression level (top) and the number of predicted targets (bottom)Back to article page