Thompson Group - Model Organism Oikopleura dioica

O. dioica life cycle
Oikopleura dioica life cycle at 15 C. The organism undergoes rapid embryonic cleavages and hatches to a tadpole form. Metamorphosis is defined by a switch in tail position such that it becomes orthogonal to the trunk and the first filter-feeding house is inflated. Subsequent sinusoidal movements of the tail control water flow through the house. Rapid growth from day 1 to 5 is followed by spawning and death on day 6. Mitotic proliferative cell cycles are increasingly replaced by endocycles during organogenesis and after metamorphosis endoreplicative cell cycle variants are almost systemic. Larger view

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Sars International Centre for Marine Molecular Biology
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