Research Article

Characterization of the Intergenic Spacer rDNAs of Two Pig Nodule Worms, Oesophagostomum dentatum and O. quadrispinulatum

Figure 1

The alignment of the representative sequences of intergenic spacer rDNA (IGS rDNA) regions of Oesophagostomum dentatum and O. quadrispinulatum. Portions of the flanking 28S and 18S genes are shown. Dots (·) denote sequence identity to the first sequence. Dashes (-) represent nucleotide deletions. Motifs for two nematodes are boxed with a solid (or broken) line. See the text for additional details.
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