Yolk SacEgg YolkHeartEmbryo, MammalianEmbryo, NonmammalianChick EmbryoEndodermal Sinus TumorHeart RateVitelline MembraneEmbryo ImplantationEmbryonic DevelopmentMesonephromaEmbryonic and Fetal DevelopmentBlastocystGene Expression Regulation, DevelopmentalPregnancyEndodermEmbryo LossHeart FailureEndolymphatic SacAir SacsHeart DiseasesHeart Defects, CongenitalFetal HeartHeart TransplantationAnal SacsGestational SacHematopoiesis, ExtramedullaryIn Situ HybridizationZebrafishPlacentaGestational AgeFertilization in VitroTime FactorsMesodermCleavage Stage, OvumExtraembryonic Membranesalpha-FetoproteinsBlastomeresGastrulaPinocytosisHeart ValvesCulture TechniquesCell DifferentiationMorphogenesisRNA, MessengerEgg ProteinsMolecular Sequence DataFetusPovidoneHeart AtriaBlood VesselsDysgerminomaTranscription FactorsBody PatterningHematopoietic Stem CellsMesonephrosCryopreservationEmbryo DispositionPregnancy Trimester, FirstBase SequenceMice, Inbred C57BLAmnionOocytesHematopoiesisMorulaTeratomaMyocardiumZygoteChimeraZebrafish ProteinsHeart BlockImmunohistochemistryErythropoiesisMice, KnockoutFetal DeathOrgan Culture TechniquesMice, Inbred ICRPlacentationAmino Acid SequenceEctodermLiverCell LineageTesticular NeoplasmsPhenotypeGene ExpressionNeoplasms, Germ Cell and EmbryonalAllantoisErythroblastsTeratogensHematopoietic SystemMicroscopy, ElectronHeart Arrest, InducedChorionGenes, LethalHeart Function TestsMaternal-Fetal ExchangeOvumHomeodomain ProteinsSignal Transduction