Duplicated shh genes in Xenopus laevis reveal an essential role in early limb development
Norie Kagawa, Rima Mizuno, Yoshihiko Umesono, Kenichi Suzuki, 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.
bioRxiv · Aug 26, 2026 · PreprintDevelopmental Biology