Bones of contention: skeletal patterning across the fin-to-limb transition.
2021
The fin-to-limb transition has long fascinated evolutionary biologists, but a unifying theory as to its developmental origins has remained elusive. New work by Hawkins and colleagues demonstrates the surprising potential of teleost fins to exhibit a Hox-regulated limb-like skeletal pattern, shedding new light on the evolution of proximo-distal patterning processes.
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