AngiospermsTracheobiontaGymnospermsPhylogenyEvolution, MolecularCell LineageConiferophytaFlowersGenes, PlantNymphaeaceaeGenome, PlantBiological EvolutionDNA, PlantOvuleNupharNymphaeaDNA, ChloroplastPlant ProteinsBotanyFossilsBryophytaPiceaGenome, PlastidMolecular Sequence DataPlantsSelaginellaceaeFernsPlastidsCycasPollinationPollenAlismatidaeAnnonaGene Expression Regulation, PlantTreesGenome SizeSeedsArabidopsisSequence Analysis, DNA