Molluscan engrailed expression, serial organization, and shell evolution

  title={Molluscan engrailed expression, serial organization, and shell evolution},
  author={D. Jacobs and C. Wray and C. Wedeen and R. Kostriken and R. DeSalle and J. L. Staton and R. Gates and D. Lindberg},
  journal={Evolution & Development},
  • D. Jacobs, C. Wray, +5 authors D. Lindberg
  • Published 2000
  • Biology, Medicine
  • Evolution & Development
  • SUMMARY Whether the serial features found in some molluscs are ancestral or derived is considered controversial. Here, in situ hybridization and antibody studies show iterated engrailed‐gene expression in transverse rows of ectodermal cells bounding plate field development and spicule formation in the chiton, Lepidochitona caverna, as well as in cells surrounding the valves and in the early development of the shell hinge in the clam, Transennella tantilla. Ectodermal expression of engrailed is… CONTINUE READING
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