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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Ancient gene transfer from algae to animals: Mechanisms and evolutionary significance

Figure 3

Phylogenetic and Pfam domain analyses of potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 2. Numbers above branches show bootstrap values for maximum likelihood and distance analyses respectively. Asterisks indicate values lower than 50%. Other bootstrap values below 50% in both methods are not shown. Red: tunicates; green: Plantae; blue: cyanobacteria; pink: other plastid-containing eukaryotes. Three identical tandem domains (Ion transport protein N-terminal/Ion transport protein/Cyclic nucleotide-binding domain) are restricted to animals and algae. Several animal and algal sequences contain only one or two domains, suggestive of potential loss over time.

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