IntronsRNA SplicingBase SequenceExonsMolecular Sequence DataSpliceosomesRNA Splice SitesRNA PrecursorsEvolution, MolecularAmino Acid SequencePhylogenyCloning, MolecularNucleic Acid ConformationAlternative SplicingGenesSequence Homology, Nucleic AcidSequence AlignmentRNA, MessengerRNA, Small NuclearSequence Analysis, DNAConserved SequenceRNA, CatalyticEuglena gracilisRNA, FungalTranscription, GeneticRestriction MappingSequence Homology, Amino AcidDNAOpen Reading FramesBiological EvolutionModels, GeneticDNA, ComplementaryTrans-SplicingGenes, FungalChromosome MappingGenomeGenes, PlantGenomic LibrarySpecies SpecificityPolymerase Chain ReactionChlorophytaBlotting, SouthernCryptophytaBase CompositionRNARibonucleoproteins, Small NuclearAscomycotaRNA, Ribosomal, Self-SplicingRibonucleoprotein, U2 Small NuclearRetroelementsDNA, FungalRNA, RibosomalTetrahymenaPseudogenesPromoter Regions, GeneticUntranslated RegionsMutationFishes, PoisonousNucleic Acid PrecursorsNaegleriaMultigene FamilyDNA Restriction EnzymesDNA, IntergenicVertebratesRepetitive Sequences, Nucleic AcidDNA, MitochondrialDNA PrimersDNA Transposable ElementsDatabases, Nucleic AcidEuglenidaEukaryotic CellsRNA, Small NucleolarRNA, PlantChloroplastsCodonDNA, ChloroplastFungiPlants5' Untranslated RegionsSaccharomyces cerevisiaeRNA Processing, Post-TranscriptionalRNA-Binding ProteinsEndonucleasesHepatophytaGenes, ProtozoanNucleic Acid HybridizationDrosophila melanogasterExpressed Sequence TagsRNA, ArchaealArabidopsisInteinsBasidiomycotaRibosomal ProteinsComputational BiologyThermoprotealesCytochromes bGenome, MitochondrialGene LibraryGenetic VariationBlotting, Northern