Abstract
Models based on molecular mechanisms are presented for pattern formation in developing organisms. It is assumed that there exists a diffusion governed gradient in the morphogenetic field. It is shown that cellular differentiation and the subsequent pattern formation result from the interaction of the diffusing morphogen with the genetic regulatory mechanism of cells. In a second stage it is shown that starting from a homogeneous distribution of morphogen, polarity can be generated spontaneously in the morphogenetic field giving rise to the establishment of a gradient. The stability of these gradients is demonstrated. The onset of a morphogenetic gradient and pattern formation are combined in a single coherent model. Size invariance and its biological implications are discussed.
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Babloyantz, A., Hiernaux, J. Models for cell differentiation and generation of polarity in diffusion-governed morphogenetic fields. Bltn Mathcal Biology 37, 637–657 (1975). https://doi.org/10.1007/BF02459528
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DOI: https://doi.org/10.1007/BF02459528