Skeleton develops regularly in <i>Fgf9^Y162C</i> mutants.

<p>(A–E) Alcian blue/Alizarin red staining of (A) elbow joints (lateral view), (B) knee joints (lateral view), (C) thoraric regions (ventral view), (D) spinal columns (lateral view), and (E) skulls (dorsal view) of C57BL/6J control (WT), heterozygous <i>Fgf9^Y162C</i> (A/+), and homozygous <i>Fgf9^Y162C</i> (A/A) newborn mice. The mutants did not exhibit skeletal abnormalities. H, humerus; R, radius; U, ulna; Fe, femur; T, tibia; Fi, fibula; S, sagittal suture; C, coronal suture.