@article{1717,
  abstract     = {Two key processes are in the basis of morphogenesis: the spatial allocation of cell types in fields of naïve cells and the regulation of growth. Both are controlled by morphogens, which activate target genes in the growing tissue in a concentration-dependent manner. Thus the morphogen model is an intrinsically quantitative concept. However, quantitative studies were performed only in recent years on two morphogens: Bicoid and Decapentaplegic. This review covers quantitative aspects of the formation and precision of the Decapentaplegic morphogen gradient. The morphogen gradient concept is transitioning from a soft definition to a precise idea of what the gradient could really do.},
  author       = {Anna Kicheva and González-Gaitán, Marcos A},
  journal      = {Current Opinion in Cell Biology},
  number       = {2},
  pages        = {137 -- 143},
  publisher    = {Elsevier},
  title        = {{The Decapentaplegic morphogen gradient a precise definition}},
  doi          = {10.1016/j.ceb.2008.01.008},
  volume       = {20},
  year         = {2008},
}