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Dev Biol. 1987 Sep;123(1):145-53.

Changing spatial patterns of DNA replication in the developing wing of Drosophila.

Abstract

Using an antibody against bromodeoxyuridine we have analyzed the distribution of S-phase nuclei in the wing disc of Drosophila as the larval disc transforms into the adult wing during metamorphosis. On the basis of the timing of replication three cell populations can be distinguished: the cells of the presumptive wing margin, the precursor cells of the longitudinal veins, and those of the intervein regions. In each of these populations the cell cycle is first arrested and later resumes at a specific time, so that at each developmental time point a characteristic spatial pattern of S-phase nuclei is seen. An interpretation of these changing patterns in terms of vein formation, compartments, and neural development is offered.

PMID:
3622926
DOI:
10.1016/0012-1606(87)90436-2
[Indexed for MEDLINE]

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