Morphogenetic mechanisms of coelom formation in the direct-developing sea urchinHeliocidaris erythrogramma
✍ Scribed by Margaret S. Smith; Steve Collins; Rudolf A. Raff
- Publisher
- Springer-Verlag
- Year
- 2008
- Tongue
- English
- Weight
- 473 KB
- Volume
- 219
- Category
- Article
- ISSN
- 0949-944X
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## Abstract __Heliocidaris erythrogramma__ is a direct‐developing sea urchin that has evolved a modified ontogeny, a reduced larval skeleton, and accelerated development of the adult skeleton. The __Orthopedia__ gene (__Otp__) encodes a homeodomain transcription factor crucial in patterning the lar
## Abstract To understand the role of body axes in the evolution of larval form, we use the two sea urchins in the genus __Heliocidaris,__ which have distinctly different larval morphologies. __Heliocidaris tuberculata__ is an indirect‐developing sea urchin, which forms a pluteus larva, whereas its