Reposted by Lara Busby
Pleased to share our latest! We show that the chick limb can be directed to recapitulate key stages in mammalian evolution, providing a unifying model for digit patterning across amniotes.
Preprint: www.biorxiv.org/content/10.6...
Video summary: www.youtube.com/watch?v=fvL_...
biorxiv.org
Transforming avian to mammalian modes of digit patterning
How a conserved embryonic organiser-the Sonic hedgehog (Shh)-expressing Zone of Polarising Activity (ZPA)-generates diverse limb architectures in amniotes remains a central problem in evolutionary and...