Developmental role of dpp in the gastropod shell plate and co-option of the dpp signaling pathway in the evolution of the operculum.

@article{Hashimoto2012DevelopmentalRO,
  title={Developmental role of dpp in the gastropod shell plate and co-option of the dpp signaling pathway in the evolution of the operculum.},
  author={Naoki Hashimoto and Yoshihisa Kurita and Hiroshi Wada},
  journal={Developmental biology},
  year={2012},
  volume={366 2},
  pages={367-73}
}
The operculum is a novel structure in gastropod molluscs. Because the operculum shows notable similarities to the shell plate, we asked whether there were an evolutionary link between these two secretory organs. We found that some of the genes involved in shell-field development are expressed in the operculum, such as dpp and grainyhead, whereas engrailed and Hox1 are not. Specific knockdown of dpp by injection of double-stranded RNA (dsRNA) resulted in malformation of the shell plate. The… CONTINUE READING
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