ArchaeaGenome, BacterialGenomeGenome, ViralSequence Analysis, DNAPhylogenyGenome, ArchaealMolecular Sequence DataGenome, PlantGenome, HumanArchaeal ProteinsGenes, ArchaealGenome, MitochondrialDNA, ArchaealEvolution, MolecularBase SequenceGenomicsRNA, ArchaealGenome, FungalGenome SizeDNA, BacterialOpen Reading FramesSequence AlignmentCrenarchaeotaSyntenyGene Expression Regulation, ArchaealGenome, ProtozoanChromosome MappingGenome, ChloroplastAmino Acid SequenceGenome, InsectBacteriaGene OrderComputational BiologyHaloferax volcaniiMethaneMultigene FamilySpecies SpecificityBase CompositionMethanococcusGenetic VariationGene Transfer, HorizontalBacterial ProteinsDatabases, GeneticSequence HomologyConserved SequenceMolecular Sequence AnnotationModels, GeneticSulfolobusSequence Homology, Amino AcidGenes, BacterialSeawaterMethanobacteriaceaeGenome, PlastidGenome, HelminthChromosomes, ArchaealSequence Homology, Nucleic AcidHuman Genome ProjectChromosomes, Artificial, BacterialContig MappingSoftwareChromosomes, BacterialGene DuplicationDesulfurococcaceaePyrococcusRecombination, GeneticRNA, Ribosomal, 16SGeologic SedimentsDatabases, Nucleic AcidExpressed Sequence TagsDNA Transposable ElementsDNA, ViralEukaryotic CellsMethanosarcinaEuryarchaeotaCluster AnalysisMethanosarcinaceaeProkaryotic CellsCloning, MolecularRepetitive Sequences, Nucleic AcidMetabolic Networks and PathwaysBiological EvolutionEukaryotaNitrificationHigh-Throughput Nucleotide SequencingMethanobacteriumThermococcusProphagesRNA, TransferSoil MicrobiologyMutationHalobacterialesGene Expression Regulation, BacterialPhysical Chromosome MappingPseudogenesMethanosarcinalesHalobacteriaceaeEscherichia coliOryza sativaRNA, Viral