Rostral and caudal pharyngeal arches share a common neural crest ground pattern.

@article{Minoux2009RostralAC,
  title={Rostral and caudal pharyngeal arches share a common neural crest ground pattern.},
  author={Maryline Minoux and G S Antonarakis and Marie Kmita and Denis Duboule and Filippo M Rijli},
  journal={Development},
  year={2009},
  volume={136 4},
  pages={637-45}
}
In vertebrates, face and throat structures, such as jaw, hyoid and thyroid cartilages develop from a rostrocaudal metameric series of pharyngeal arches, colonized by cranial neural crest cells (NCCs). Colinear Hox gene expression patterns underlie arch specific morphologies, with the exception of the first (mandibular) arch, which is devoid of any Hox gene activity. We have previously shown that the first and second (hyoid) arches share a common, Hox-free, patterning program. However, whether… CONTINUE READING