PhylogenyCell LineageEvolution, MolecularSequence Analysis, DNAGenetic VariationBiological EvolutionFossilsMolecular Sequence DataGenome, MitochondrialPhylogeographyGenetic SpeciationDNA, MitochondrialRNA, Ribosomal, 28SDNA, ChloroplastBayes TheoremDNA, RibosomalGeographyPlastidsRNA, Ribosomal, 18SBase SequenceLikelihood FunctionsSequence AlignmentSpecies SpecificityModels, GeneticBiodiversityCluster AnalysisGenome, BacterialRNA, Ribosomal, 16SSequence Homology, Nucleic AcidEcosystemDNA, BacterialAmino Acid SequenceBacteriaGenotypeCell DifferentiationStem CellsGene Expression Regulation, DevelopmentalHematopoietic Stem CellsTranscription FactorsMice, TransgenicEmbryonic Stem CellsHomeodomain ProteinsCells, CulturedHematopoiesisPhenotypeMice, Inbred C57BLBone Marrow CellsMultipotent Stem CellsThymus GlandLymphopoiesisSignal TransductionGene DuplicationMesodermFlow CytometryBasic Helix-Loop-Helix Transcription FactorsHaplotypesEmbryo, MammalianGenetics, PopulationPolymerase Chain ReactionB-LymphocytesDNA-Binding ProteinsAngiospermsDNA PrimersGenomeGene Expression RegulationEndodermMultigene FamilyMice, KnockoutCell LineMegakaryocytesSelection, GeneticReverse Transcriptase Polymerase Chain ReactionMutationCytochromes bPrimatesEmbryo, NonmammalianReceptors, NotchModels, BiologicalHominidaeVertebratesChromosomes, Human, YOligodendrogliaIn Situ HybridizationT-LymphocytesCell SeparationCell ProliferationCell DivisionRNA, MessengerClone CellsGene ExpressionEctodermLymphoid Progenitor CellsDrosophilaPan troglodytesGene Expression ProfilingGene Transfer, HorizontalPluripotent Stem CellsEukaryotaMesenchymal Stromal CellsMyeloid Cells