Temporally Changing Roles of Morphogen Dorsal in the Drosophila Early Embryo

Jihyun Irizarry
Morphogen gradients provide positional cues during development, with cell fate specification proceeding in a morphogen concentration-dependent manner during patterning. However, morphogens also are dynamic as their concentrations change not only in space but also in time, but how these dynamics are translated into cell fate specification over time is not well understood. To provide a better understanding of morphogens’ temporal roles, we studied how Drosophila dorsal-ventral body patterning is controlled by the dynamic morphogen Dorsal...
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