Hagfish embryology with reference to the evolution of the neural crest

@article{Ota2007HagfishEW,
  title={Hagfish embryology with reference to the evolution of the neural crest},
  author={Kinya G Ota and Shigehiro Kuraku and Shigeru Kuratani},
  journal={Nature},
  year={2007},
  volume={446},
  pages={672-675}
}
Hagfish, which lack both jaws and vertebrae, have long been the subject of intense interest owing to their position at a crucial point in the evolutionary transition to a truly vertebrate body plan. However, unlike the comparatively well characterized vertebrate agnathan lamprey, little is known about hagfish development. The inability to analyse hagfish at early embryonic stages has frustrated attempts to resolve questions with important phylogenetic implications, including fundamental ones… Expand
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  • S. Kuratani, K. Ota
  • Biology, Medicine
  • BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2008
TLDR
It is concluded that the delaminating neural crest is a vertebrate synapomorphy that seems to have appeared from the beginning of their evolutionary history, before the splitting away of the hagfish lineage. Expand
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TLDR
It is reasonable to assume that the hagfish vertebral elements, like the rest of the skeleton, represent a secondary degenerated condition. Expand
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  • Biology, Medicine
  • Wiley interdisciplinary reviews. Developmental biology
  • 2013
TLDR
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The origin of developmental mechanisms underlying vertebral elements: implications from hagfish evo-devo.
TLDR
It is demonstrated that hagfish possesses sclerotome-derived cartilaginous vertebral elements at the ventral aspect of the notochord and that the underlying developmental mechanisms are likely to have been conserved among extinct jawless vertebrates and modern gnathostomes. Expand
Insights into Neural Crest Evolution
TLDR
DiI-labeling shows that trunk neural crest-derived cells, likely homologous to mammalian Schwann cell precursors, contribute to the lamprey enteric nervous system, potentially representing the most primitive form of neural crest cells contribution to the ENS. Expand
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