RosaceaePrevalencePrunusFragariaBacteriaPotentillaMalusSorbusSpiraeaGeumSelf-Incompatibility in Flowering PlantsGram-Negative BacteriaPyrusGram-Positive BacteriaPhylogenyBacteria, AnaerobicErwinia amylovoraPlant Components, AerialMolecular Sequence DataRosaGenome, PlantRNA, Ribosomal, 16SDNA, BacterialSequence Analysis, DNARosalesBacteria, AerobicBacterial ProteinsPollenCross-Sectional StudiesEscherichia coliFruitDNA, RibosomalRisk FactorsPolyploidyFlowersAnti-Bacterial AgentsWater MicrobiologyRibonucleasesSpecies SpecificityGenomicsTreesExpressed Sequence TagsGeneticsGenes, PlantTriterpenesGram-Negative Aerobic BacteriaGram-Negative Anaerobic BacteriaBacterial Physiological PhenomenaSyntenyPlant LeavesSoil MicrobiologyPollinationChromosomes, PlantGenetic Markers