This phenotype resembled that of bone morphogenetic protein receptor ( BMPR ) 1 and Gdf5-deficient mice .
O O O O O B-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct O B-GeneOrGeneProduct B-OrganismTaxon O