Specification of territories in blastula-stage sea urchin embryo

Proposed fate map of territories in Strongylocentrotus purpuratus embryo, projected as an external image of the hatched blastula of about 400 cells (~20 hours postfertilization) (Davidson et al., 1998).

 
Aboral ectoderm
Oral ectoderm
Vegetal plate endoderm and mesoderm
Sceletogenic mesoderm
Small micromeres
Regions where specifications have still not yet occured

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The model is designed by Roman M. Shulakov (Hypermedia Lab of IHPCDB)


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Comments are welcome to Sveta Surkova

Copyright 1997 GeNet Team