BlastodermGastrulaBody PatterningEmbryo, NonmammalianEmbryonic InductionGastrulationXenopus ProteinsGene Expression Regulation, DevelopmentalMorphogenesisBlastomeresMesodermZebrafishXenopusEctodermZebrafish ProteinsChick EmbryoWnt ProteinsEndodermCell PolaritySeedsBlastocystIn Situ HybridizationHomeodomain Proteinsbeta CateninAxisSignal TransductionMolecular Sequence DataRNA, MessengerHypothalamo-Hypophyseal SystemPituitary-Adrenal SystemHydrocortisoneCorticosteroneCorticotropin-Releasing HormoneRotationPituitary GlandModels, BiologicalOrganizers, EmbryonicHypothalamusNodal ProteinStress, PsychologicalRestraint, PhysicalStress, PhysiologicalPituitary-Adrenal Function TestsInsulin-Like Growth Factor IGenes, HomeoboxTime FactorsNeurosecretory SystemsAdrenal GlandsDrosophila ProteinsTranscription FactorsGrowth HormoneExtremitiesChemokine CXCL12Paraventricular Hypothalamic NucleusMice, Inbred C57BLGonadotropin-Releasing HormoneLuteinizing HormoneGlucocorticoidsDrosophilaMice, KnockoutEmbryonic DevelopmentGoosecoid ProteinCell MovementReceptors, CXCR4Celiac ArteryReflex, Vestibulo-OcularReceptors, Corticotropin-Releasing HormoneMutationBone Morphogenetic ProteinsAmino Acid SequenceReceptors, Glucocorticoid