Second branchial arch lineages of the middle ear of wild-type and Hoxa2 mutant mice.

@article{OGorman2005SecondBA,
  title={Second branchial arch lineages of the middle ear of wild-type and Hoxa2 mutant mice.},
  author={Stephen O'Gorman},
  journal={Developmental dynamics : an official publication of the American Association of Anatomists},
  year={2005},
  volume={234 1},
  pages={124-31}
}
  • Stephen O'Gorman
  • Published 2005 in
    Developmental dynamics : an official publication…
Our current understanding of the evolution of the mammalian middle ear was first suggested by embryological studies from the 19th century. Here, site-specific recombinase-mediated lineage tracing was used to define the second branchial arch contribution to the middle ear of wild-type and Hoxa-2 mutant embryos. The processus brevis of the malleus was found to arise from second arch tissues, making it the likely homologue of the retroarticular process of nonmammalian tetrapods. The second arch… CONTINUE READING

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