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Fig. 8. gtaC expression at the slug and fruiting body stages in wild
type. A gtaC promoter-lacZ reporter gene construct is
expressed in scattered cells throughout the rear of slugs, but with highest
levels of staining towards the prestalk-prespore boundary (A). At the
early culminant (B) and mature fruiting body (C) stages,
expression is restricted to the upper and lower cup, as well as to the stalk
and basal disc. Scale bar: 0.25 mm.