Gareth J. Fraser

This study investigates the development and evolutionary origin of extraoral teeth in chimaeras, finding they develop similarly to oral teeth and are homologous rather than modified denticles.

This study investigates tooth development in frogs, finding that the upper jaw retains a conserved tooth gene network, while the mandible lacks evidence of tooth development, suggesting evolutionary constraints on re-evolving lost mandibular teeth.

The paper identifies genes and regulatory networks involved in shark tooth regeneration using RNAseq, highlighting the role of mycn in dental stem cell proliferation.

This study examines the development of shark denticles, finding they share a gene expression signature with teeth but lack a stem cell niche for regeneration.

The paper shows that an enamel knot-like signalling centre is conserved in sharks, supporting its homology across vertebrates despite differences in signalling.

This study investigates the developmental mechanisms of pufferfish skin spines, showing they develop through conserved gene interactions but lack EDA, a key molecule in other vertebrate skin appendages.