Fig. 7

In situ hybridization (ISH) illustrating the spatial expression patterns of Klf2 (a-c), Sox2 (d-f), MMP14 (g-i) and TGFR1 (j-l) during the early regeneration phase of the body wall. The three rows of horizontal images represent tissue sections at 0 (a, d, j, g), 3 (b, e, h, k) and 7 (c, f, i, l) days of body wall regeneration, respectively. Insets provide a high magnification view of the boxed areas in the corresponding main micrographs. el: epithelial layer; ctl: connective tissue layer; ml: muscle layer