Fig. 3
From: Ectopic Fgf signaling induces the intercalary response in developing chicken limb buds
HoxA11 expression pattern in the operated limbs. HoxA11 expression in the control (PBS) samples (a, c, e) and Fgf2 + Fgf8 bead-grafted limb buds (b, d, f). a, b HoxA11 expression remained at the distal parts on day 6 (2 days after surgery). HoxA11 expression disappeared in the control samples at later time points, however (c, e). d, f HoxA11 expression was observed in the proximal region in the Fgf2 + Fgf8 bead-grafted limbs. Asterisks indicate the grafted beads. The scale bar in A is 500 μm