Figure 6: Phylogenetic tree of potential hemoglobin sequences from scale worms.

Sequences from Lumbricus and Glycera served as outgroups. Numbers above branches represent MP/ML bootstrap values based on 1,000 iterations, with 100 (indicated using an asterisk) as the highest value. Bootstrap values below 50 are shown only as a short dash due to the weak support. Sequences from deep-sea species are highlighted in red color.