Figure 2From: Development in a naturally acidified environment: Na+/H+-exchanger 3-based proton secretion leads to CO2 tolerance in cephalopod embryosRouted phylogenetic tree for Sepioteuthis lessoniana Na+/H+-exchanger isoform 3 (NHE3) (A) and Rh protein (RhP) (B). Phylogenetic comparisons are based on amino acid sequences from NHE clades 1–10 as well as Rh isoforms, MEP and Amt as the out group. Numbers indicate bootstrap values and accession numbers for the sequences are provided along with species names.Back to article page