Development Genes and Evolution

, Volume 218, Issue 5, pp 237–251

Expression patterns of engrailed and dpp in the gastropod Lymnaea stagnalis

Authors

  • Minoru Iijima
    • Department of Earth Evolution Sciences, Graduate School of Life and Environmental SciencesUniversity of Tsukuba
  • Takeshi Takeuchi
    • Department of Earth Evolution Sciences, Graduate School of Life and Environmental SciencesUniversity of Tsukuba
  • Isao Sarashina
    • Department of Earth Evolution Sciences, Graduate School of Life and Environmental SciencesUniversity of Tsukuba
    • Department of Earth Evolution Sciences, Graduate School of Life and Environmental SciencesUniversity of Tsukuba
Original Article

DOI: 10.1007/s00427-008-0217-0

Cite this article as:
Iijima, M., Takeuchi, T., Sarashina, I. et al. Dev Genes Evol (2008) 218: 237. doi:10.1007/s00427-008-0217-0

Abstract

We isolated the full-length cDNAs of engrailed and dpp-BMP2/4 orthologues from the pond snail Lymnaea stagnalis and examined their expression patterns during development by the whole mount in situ hybridization. At the gastrula and trochophore stages, engrailed is expressed in the peripheral ectoderm of the presumptive and invaginating shell gland, corroborating its role in the shell formation that is widely conserved among molluscs. At the same stages, dpp-BMP2/4 is expressed in the right-hand side ectoderm of the shell gland and in the invaginating stomodaeum. Unlike in the gastropod Patella vulgata, our results suggested that dpp-BMP2/4 has a role in the shell formation, rather than in the regional specification and that it could be involved in the specification pathway of the left–right asymmetry of the developing shell in L. stagnalis.

Keywords

Gastropod molluskLymnaea stagnalisShell formationEngraileddpp-BMP2/4

Copyright information

© Springer-Verlag 2008