BlastodermEmbryo, NonmammalianDrosophilaGastrulaBlastodiscCleavage Stage, OvumDrosophila ProteinsDrosophila melanogasterBody PatterningMolecular Sequence DataChick EmbryoTriboliumGenes, InsectGene Expression Regulation, DevelopmentalDNA CleavageAmino Acid SequenceBase SequenceCoturnixInsect ProteinsMorphogenesisHeteropteraQuailFushi Tarazu Transcription FactorsBlastulaOrganizers, EmbryonicZebrafishVitelline MembraneNodal Signaling LigandsMutationInsect HormonesRNA CleavageHomeodomain ProteinsGerm CellsTranscription FactorsGerm LayersZygoteEmbryonic InductionAminopterinOvumEmbryonic DevelopmentSubstrate SpecificityBlastocystIn Situ HybridizationHydrolysisZebrafish Proteins