Figure 7.
The ParaHox gene CapI-cdx defines new hindgut identity during regeneration. Animals are amputated anterior to CapI-cdx expression domain in the hindgut of uncut animals. CapI-cdx expression in the hindgut of uncut animals (A). By 1 dpa, novel expression is initiated in pre-existing tissue near the wound site (arrowhead in B) and gradually becomes localized to new gut tissue in the regenerate at 5 and 7 dpa. (C,D). Lines in (A,C,D) and arrowhead in (B) mark area of expression. A and B are lateral views, C and D are ventral views. Anterior is to the left in all panels. Days post amputation (dpa) is indicated in bottom left corner.