An unrooted phylogenetic reconstruction based on 16S-like rDNA exploring the relationships among Entamoeba species. An unrooted Neighbor-Joining tree is shown. Accession numbers for the sequences used are listed in parentheses. RL and CL numbers are Ribosomal and Conditional Lineages, respectively. These terms are used when no species name has been assigned but the organisms are clearly different from those for which sequences are already available. Conditional lineages are those for which only partial gene sequences ahave been obtained. The scale bar represents 0.05 substitutions per site..