Chemotaxis model leads to high fraction of correct sorting but low level of stable sorting.

<p>10 runs were performed for each value of <i>μ_o</i>. (<b>a</b>) The cell grid at start (top), middle (middle) and end of a run (last). The number of clusters, , is shown to the left of the grid. Cell boundaries are in dark blue. The morphogen source is located along the rightmost lattice points ( = 142) and diffuses to form a gradient in the -th (horizontal) direction. The different cell types are colored in light blue (type 1), green (type 2), orange (type 3) and red (type 4). (<b>b</b>) Plot of number of clusters with time for different values of magnitude of chemotactic strength, . The number of clusters decreases steadily with time. (Inset) Zoom-in plot of number of clusters between = 50,000 and 70,000 MCS. (<b>c</b>) Bar graphs of fraction of correct and stable sorting, (blue) and (red), respectively, for different values of . For <1.5, none of the runs led to stable sorting. (<b>d</b>) Bar graphs for sorting time, , (green) and size variation (black) for different values of . Error bars show the standard errors. (<b>e</b>) Summary of findings for low and high .