title: Limb development: getting down to the ground state.
abstract: In 1935, Snodgrass proposed that the evolutionary ground state of arthropod limbs consisted of two segments. Recent genetic studies on the Antennapedia and Homothorax genes of Drosophila raise questions about the nature of this ground state appendage.
authors.affiliation: European Molecular Biology Laboratory, Meyerhofstr. 1, 69117, Heidelberg, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Starling Emerald
authors.forename: S M
authors.initials: SM
authors.lastname: Cohen
mesh_terms: D000818:Animals; D051943:Antennapedia Homeodomain Protein; D004330:Drosophila / Q000235:genetics / Q000254:growth & development*; D029721:Drosophila Proteins; D018398:Homeodomain Proteins / Q000235:genetics; D009687:Nuclear Proteins; D014157:Transcription Factors
chemical_list: D051943:Antennapedia Homeodomain Protein; C497974:Antp protein, Drosophila; D029721:Drosophila Proteins; D018398:Homeodomain Proteins; D009687:Nuclear Proteins; D014157:Transcription Factors; C108704:hth protein, Drosophila