Developmental age-related cell sorting inDictyostelium discoideum

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Abstract
The sorting behavior of mixtures ofD. discoideum cells which had been developed for different lengths of time was examined. Cells developed for 4 and 8 h were mixed together and allowed to form slugs. Within the slugs, 8 h cells sorted to the anterior prestalk region while 4 h cells sorted to the posterior prespore region. These results indicate that the more developed a cell is, the more likely it is to become part of the prestalk zone in the slug. They are also consistent with the differential adhesion and chemotaxis hypotheses as a mechanism for cell sorting since cells become more adhesive and chemotactically responsive as development proceeds.