title: Dorsoventral axis in version.
authors: K J
authors: KJ
authors: Peterson
mesh_terms: D000818:Animals; D005075:Biological Evolution; D019485:Bone Morphogenetic Proteins; D002816:Chordata, Nonvertebrate / Q000196:embryology*; D004330:Drosophila / Q000196:embryology / Q000235:genetics; D029721:Drosophila Proteins; D007301:Insect Hormones / Q000235:genetics / Q000502:physiology; D008954:Models, Biological; D011506:Proteins / Q000235:genetics / Q000502:physiology; D013116:Spinal Cord / Q000196:embryology
chemical_list: D019485:Bone Morphogenetic Proteins; D029721:Drosophila Proteins; D007301:Insect Hormones; D011506:Proteins; C064196:dpp protein, Drosophila