NematodaPhylogenyDracunculoideaSpirurida InfectionsSequence Analysis, DNAStrongylidaAscaridida InfectionsAscaridoideaMolecular Sequence DataOxyuroideaAir SacsDNA, RibosomalRNA, Ribosomal, 16SAnguillaSpiruroideaAscarididaOxyuriasisHelminthiasis, AnimalAnisakisEvolution, MolecularNematode InfectionsAngiostrongylus cantonensisMetastrongyloideaDNA, HelminthGenes, rRNABase CompositionTylenchidaAnisakiasisPaleopathologyDNA, BacterialAtelidaeFish DiseasesGenome, HelminthMurinaeRhabditidaOesophagostomumDNA, Ribosomal SpacerMansonelliasisRiversSetariasisSetaria NematodeSpecies SpecificityCestodaMermithoideaBase SequenceEnoplida InfectionsSequence AlignmentMansonellaAscaridiaTrichostrongyloideaCluster AnalysisBacterial Typing TechniquesArgentinaTardigradaOesophagostomiasisStrongylida InfectionsFishesGenome, MitochondrialFilarioideaFresh WaterAmino Acid SequenceSequence HomologyRodent DiseasesBiological EvolutionSoil MicrobiologyGenetic VariationFatty AcidsSeawaterBrazilInvertebratesLarvaGenome, ViralMuscle, StriatedTrichostrongylusHeligmosomatoideaRNA, BacterialSequence Homology, Nucleic AcidGnathostomaSequence Homology, Amino AcidRNA, Ribosomal, 18STrichinella spiralisParasitesGeologic SedimentsMultigene FamilyCyprinidaeCrustaceaMicroscopy, Electron, ScanningAntinematodal AgentsPolymerase Chain ReactionActinomycetalesAscaris suumKoreaLikelihood FunctionsHost-Parasite InteractionsGammaproteobacteriaChinaCaenorhabditisAlphaproteobacteriaGenotypeHelminth Proteins