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Early Development in Sea Urchins
- Early cleavage
- Blastula formation
- The sea urchin fate map
Sea Urchin Gastrulation
- Ingression of the skeletogenic mesenchyme
- Epithelial-mesenchymal transition
- Invagination of the archenteron
- First stage of archenteron invagination
- Second and third stages of archenteron invagination
Determination of Sea Urchin Blastomeres
- Gene regulatory networks and skeletogenic mesenchyme specification
- Disheveled and β-catenin: specifying the micromeres
- Specification of the vegetal cells
Early Development in Tunicates
- Tunicate cleavage
- Tunicate gastrulation
Axis Determination in the Tunicate Embryo
- The tunicate fate map
- Autonomous and conditional specification of tunicate blastomeres
- Autonomous specification of the myoplasm: the yellow crescent and macho-1
- Autonomous specification of endoderm: β-catenin
- Conditional specification of mesenchyme and notochord by the endoderm