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. 2011 Sep 29;6(9):e24567. doi: 10.1371/journal.pone.0024567

Figure 2. Nucleotide differences in a total of 64 variable positions found in the complete 18S rDNA sequence of the lymnaeid species compared and their location in the secondary structure.

Figure 2

Helix, Position and Difference number = numbers to be read in vertical. Position = numbers refer to positions obtained in the alignment made with MEGA 4.0. Identical = .; Indel = −. Shaded area corresponds to Helix E10-1 of the variable area V2 where differences in the 18S rRNA gene of Lymnaeidae are concentrated [33]. GenBank Accession Nos. = Z73980−Z73985 [33]; Z83831 [34]; AM4122222 [15]; FN182190 [45]; FN598151- FN598152 [55]; L. schirazensis from present paper. Sequence correspondences: * L. cubensis, L. viatrix, L. humilis and L. cousini without definitive genus ascription; 18S identical in L. viatrix and L. neotropica [15]; 18S identical in L. cousini and L. meridensis [55].