Figure 1From: Small steps or giant leaps for male-killers? Phylogenetic constraints to male-killer host shiftsPhylogenetic relationships of the coccinellid beetle species, derived from a combined 16S and 12S mitochondrial rDNA dataset. Tree estimation procedures are described in methods. The results of 1000 bootstrap resampling replicates are given next to branches, branch lengths are proportional to genetic distance (base substitutions per site, see scale bar). Tribolium castaneum is included as an outgroup.Back to article page