Fig 7. Modeling of the neural plate’s shape in the early Xenopus laevis gastrula.

The neural plate at the X. laevis midneurula visualized by the whole-mount in situ hybrydization with dig-labeled probe to the pan-neural marker, Sox2 (a). Distribution of HSPG sites in ECM used as w₀(x) for simulation of model (3) (b). Level curves for stable structures formed by activator (Chordin) in the simulation of model (3) for t = 1000 (c). Model parameters are: k₁ = 1.0, k₋₁ = 0.01, ρ = 0.6, μ_u = 0.01, μ_v = 0.05, D = 0.1.