Genes, HomeoboxHomeodomain ProteinsGene Expression Regulation, DevelopmentalMolecular Sequence DataTranscription FactorsAmino Acid SequenceIn Situ HybridizationBase SequenceGene DuplicationMultigene FamilyPhylogenyLIM-Homeodomain ProteinsOtx Transcription FactorsGoosecoid ProteinSequence Homology, Amino AcidBody PatterningAvian ProteinsMSX1 Transcription FactorSequence AlignmentAntennapedia Homeodomain ProteinVertebratesMorphogenesisDrosophila ProteinsChordata, NonvertebrateDrosophilaEmbryo, NonmammalianCloning, MolecularDNA-Binding ProteinsTrans-ActivatorsRepressor ProteinsMesodermGene ExpressionDNA, ComplementaryMutationChromosome Mapping