Figure 4From: Barcoding success as a function of phylogenetic relatedness in Viburnum, a clade of woody angiospermsGenetic variation within Viburnum subclades. Bar graph showing the mean genetic distances calculated using all included Viburnum species and genetic distances calculated using the included species from four clades nested within Viburnum. The maximum genetic distance of each gene region or regions is indicated by a thin bar extending from the mean.Back to article page