title: Morphogens: how big is the big picture?
abstract: Morphogens are in the front line just now. Here I trace how the concept of a morphogen has evolved over the past 100 years and step a little beyond what we already know.
authors: MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH, UK. pal@mrc-lmb.cam.ac.uk
authors: P A
authors: PA
authors: Lawrence
mesh_terms: D000818:Animals; D019521:Body Patterning / Q000187:drug effects / Q000235:genetics / Q000502:physiology; D005544:Forecasting; D018507:Gene Expression Regulation, Developmental / Q000187:drug effects; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D009024:Morphogenesis / Q000187:drug effects / Q000235:genetics / Q000502:physiology; D010827:Physiology / Q000266:history / Q000639:trends; D014157:Transcription Factors / Q000502:physiology*
chemical_list: D014157:Transcription Factors