title: Evolutionary biology. The ancestry of segmentation.
authors.forename: E M
authors.initials: EM
authors.lastname: De Robertis
mesh_terms: D000818:Animals; D005075:Biological Evolution; D019521:Body Patterning; D029721:Drosophila Proteins; D018398:Homeodomain Proteins / Q000235:genetics; D007301:Insect Hormones / Q000235:genetics; D008954:Models, Biological; D014157:Transcription Factors / Q000235:genetics
chemical_list: D029721:Drosophila Proteins; C063459:En protein, Drosophila; D018398:Homeodomain Proteins; D007301:Insect Hormones; D014157:Transcription Factors