Pattern formation. Hedgehog points the way.
Recent findings indicate that the Drosophila gene hedgehog and its vertebrate homologues act in analogous ways as signalling molecules that help provide cells with positional information during development.
Ingham
P W
PW
Molecular Embryology Laboratory, ICRF Developmental Biology Unit, Oxford, UK.
D000818:Animals; D016764:Cell Polarity / Q000235:genetics; D004330:Drosophila / Q000196:embryology* / Q000235:genetics; D017344:Genes, Insect; D009154:Mutation; D015398:Signal Transduction / Q000235:genetics