Figure 3From: Horizontal transfer of bacterial polyphosphate kinases to eukaryotes: implications for the ice age and land colonisationPhylogenetic analysis of PPK2. Numbers on the branches indicate bootstrapping values out of 100 calculated for maximum likelihood (expressed as a fraction of 1). Those branches showing less than 10% have been collapsed. Colours of eukaryotes indicate major taxonomic groupings (blue-metazoa, green- plants and green algae).Back to article page