DB1-DB7 development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of DB1-DB7; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. First row: DB1-DB3 from left to right; second row: DB4-DB6 from left to right; third row: DB7.

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by Santella, A.*, Altun, Z.F.*, Moore, J., Hall, D.H. and Bao, Z. 2013. *to whom correspondence should be addressed: santella@mskcc.org; zeynep.altun@einstein.yu.edu