SporesSpores, BacterialSpores, FungalSpores, ProtozoanGenetic VariationPhylogenyBiodiversityPicolinic AcidsSequence Analysis, DNAMolecular Sequence DataBacillus subtilisBacillus megateriumBacillus anthracisBacillus cereusCultural DiversityEcosystemSpecies SpecificityBacillusGeographyDNA, BacterialBacterial ProteinsRNA, Ribosomal, 16SBacteriaEvolution, MolecularHot TemperatureBase SequenceGenetics, PopulationSoil MicrobiologyAntibody DiversityAnthraxDNA, RibosomalCluster AnalysisMicrosatellite RepeatsBiological EvolutionClostridium botulinumPolymerase Chain ReactionGenotypeFungiAmino Acid SequenceClostridium perfringensPhylogeographyAir MicrobiologyFernsEnvironmental MicrobiologySterilizationMutationMicrosporidiaPopulation DynamicsHaplotypesAllelesPolymorphism, GeneticCulture MediaSelection, GeneticBiotaSequence AlignmentDNA, MitochondrialEncephalitozoonConservation of Natural ResourcesMetagenomePopulation DensityPolymorphism, Restriction Fragment LengthSeawaterAscomycotaRandom Amplified Polymorphic DNA TechniquePhenotypeFresh WaterWater MicrobiologyMicrosporidiosisGeologic SedimentsProtozoan Infections, AnimalMicrobial ViabilityGenes, BacterialDNA FingerprintingEukaryotaMycorrhizaeEncephalitozoon cuniculiDNA, Ribosomal SpacerModels, GeneticAmplified Fragment Length Polymorphism AnalysisColony Count, MicrobialRecombination, GeneticDNA, PlantFossilsGene FlowClostridiumBasidiomycotaDNA PrimersTropical ClimateEndangered SpeciesDNA, FungalTemperatureGene Expression Regulation, BacterialGenetic MarkersEcologyDictyosteliumPlantsRNA, BacterialEncephalitozoonosisBacterial Typing TechniquesFood Preservation