RosaceaePrunusFragariaPotentillaMalusAfrican AmericansSorbusSpiraeaGeumSelf-Incompatibility in Flowering PlantsPyrusIndians, North AmericanErwinia amylovoraAsian AmericansPlant Components, AerialRosaGenome, PlantMexican AmericansRosalesHispanic AmericansPollenFruitPhylogenyPolyploidyFlowersUnited StatesRibonucleasesEuropean Continental Ancestry GroupGeneticsExpressed Sequence TagsChromosomes, PlantGenes, PlantGenetic MarkersPollinationTreesTriterpenesNorth AmericaGenomicsAmerican SamoaSynteny