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Nematoda. Family Mermithidae. Family Onchocercidae (Filariidae). Order Rhabditida. Genus Toxocara. Order Strongylida. Genus Ascaris. Methods. small subunit (SSU) rDNA sequences, primarily 18S rDNA. 18S and 28S rRNa. protein families using expressed sequence tags (ESTs).
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Family Mermithidae • Family Onchocercidae • (Filariidae) • Order Rhabditida • Genus Toxocara • Order Strongylida • Genus Ascaris
Methods • small subunit (SSU) rDNA sequences, primarily 18S rDNA • 18S and 28S rRNa • protein families using expressed sequence tags (ESTs)
Questions Still Open • Accuracy of present phylogeny? (due to magnitude of diversity) • Contribution of horizontal gene transfer?