Evolution of the bilaterian larval foregut

@article{Arendt2001EvolutionOT,
  title={Evolution of the bilaterian larval foregut},
  author={D. Arendt and U. Technau and J. Wittbrodt},
  journal={Nature},
  year={2001},
  volume={409},
  pages={81-85}
}
Bilateria are subdivided into Protostomia and Deuterostomia. Indirect development through primary, ciliary larvae occurs in both of these branches; however, the closing blastopore develops into mouth and anus in Protostomia and into anus only in Deuterostomia. Because of this important difference in larval gut ontogeny, the tube-shaped guts in protostome and deuterostome primary larvae are thought to have evolved independently. To test this hypothesis, we have analysed the expression of… Expand
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