NotochordUrochordataCiona intestinalisFetal ProteinsT-Box Domain ProteinsEmbryo, NonmammalianIntervertebral DiscGene Expression Regulation, DevelopmentalZebrafishCell DifferentiationMolecular Sequence DataAmino Acid SequenceEmbryonic InductionMesodermGastrulaSomitesBody PatterningIn Situ HybridizationTailZebrafish ProteinsHepatocyte Nuclear Factor 3-betaChick EmbryoMorphogenesis