FIG. 3.

Tendon defects in Mkx^−/− mutant mice. (A and B) Wild-type (A) and mutant (B) tail samples. The arrowheads point to representative tendon insertion sites in the tail vertebrae. (C and D) Wild-type (C) and mutant (D) forelimbs. (E and F) Wild-type (E) and mutant (F) hind limbs. (G to J) High-magnification views of crimp patterns of the tendons. The wild-type tail (G) and limb (I) tendons showed the typical crimp patterns. The crimp pattern was missing in Mkx^−/− tail tendons (H), whereas the crimp bands were much more condensed in Mkx^−/− limb tendons (J).