Genetic Complementation TestMutationGenes, BacterialMolecular Sequence DataEscherichia coliPhenotypeCloning, MolecularPlasmidsChromosome MappingAmino Acid SequenceGenesAllelesBase SequenceBacterial ProteinsMutagenesis, InsertionalCrosses, GeneticOperonDNA, BacterialRestriction MappingDNA Transposable ElementsSaccharomyces cerevisiaeGenes, RegulatorTemperatureRecombination, GeneticGenes, LethalArabidopsisColiphagesSuppression, GeneticGene DeletionTransduction, GeneticSequence Homology, Amino AcidVirulenceSequence Analysis, DNAGenes, PlantDrosophila melanogasterGene Expression Regulation, BacterialGenes, Fungal