Duplicated shh genes in Xenopus laevis reveal an essential role in early limb development
Norie Kagawa, Rima Mizuno, Yoshihiko Umesono…·Makoto Mochii
This study shows that shh.L is essential for initial limb outgrowth in Xenopus laevis, revealing conserved SHH dependence for early appendage initiation across vertebrates.