Brachyury is an early mesoderm determinant and neural repressor in vertebrates. Comparative Brachyury target screens between a sea anemone and a sea urchin reveal an ancestral gene regulatory feedback loop involved in axial patterning, with conserved endodermal and neuronal, but not mesodermal, targets.
- Michaela Schwaiger
- Carmen Andrikou
- Ulrich Technau
