OvuleFlowersApomixisSeedsPollen TubePollenGene Expression Regulation, PlantArabidopsisCotton FiberGossypiumArabidopsis ProteinsHostaBauhiniaPollinationAGAMOUS Protein, ArabidopsisAngiospermsGametogenesis, PlantRanunculaceaePseudotsugaPlant ProteinsMADS Domain ProteinsReproductionPlant StructuresPlants, Genetically ModifiedPlant InfertilityMicroscopy, Electron, ScanningRNA, PlantFertilizationMeristemFruitDNA, PlantFicusNymphaeaSolanumAsteraceaeZingiberaceaeLiliumTaraxacumGerminationGene Expression Regulation, DevelopmentalPlant Physiological PhenomenaGymnospermsGerm Cells, PlantEndospermBrassicaceaeReproduction, AsexualMutationPhthalimides