Barcoding of Arrow Worms (Phylum Chaetognatha) from Three Oceans: Genetic Diversity and Evolution within an Enigmatic Phylum
Figure 2
Hierarchical histograms of pairwise Kimura 2-Parameter (K2P) distances between specimens.
Vertical lines show mean pairwise distance at each level. Asterisks mark outlier values discussed in the Results. A, K2P distances within species. B, K2P distances between species within each genus.