Masahiro Uesaka

This study shows that spiny-ray development in fish is independent of actinotrichia, enabling morphological diversification through osteoblast distribution and signaling molecule intensity.

Chromosome-scale inshore hagfish genome places 1R before the cyclostome-gnathostome split and 2R in the gnathostome stem, and reveals two cyclostome-specific duplications (CR1, CR2).

The paper shows that more evolutionarily derived gene regulatory regions are activated later in embryogenesis across three vertebrate species.