Homeotic proboscipedia cell identity functions respond to cell signaling pathways along the proximo-distal axis.

Abstract excerpt

To better understand how the different cell identities composing a segment are attributed and coordinated under the control of a single homeotic selector gene, we examined dose-sensitive homeotic phenotypes associated with gain-of-function and loss-of-function mutations of the homeotic gene proboscipedia (pb; Hox-A2/-B2). We then employed dose-sensitive segment and cell identity phenotypes resulting from ectopic...

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