Cell lineage of regularly developing sea urchin embryo: Na2u


Cell name

Na2u

Cleavage number

5

Number of cells after cleavage

32

Cleavage direction (with respect to the A/V axis)

horizontal

Mother cell

Na2

Sister cell

Na2l

Progeny

Na2uu, Na2ul

Tier

an1

Prospective territory

Aboral ectoderm

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