| Abstract | Pattern formation describes the mechanism by which an initially equivalent field of cells differentiates to form different structures in developing tissue. We propose a chemical source model to study the patterning involved in the development of feather germs in chicken skin. Cells respond chemotactically to chemical concentration, with more sources added as the domain grows and concentration dips below a threshold value. We shall explain the biological background behind the model, and reproduce the five main experimental results involving the determination of size and number of germs, the interprimordial spacing between buds, as well as the simultaneous and sequential formations that occur in vitro and in vivo, respectively. |
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