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Pole region-dependent repression of the Drosophila gap gene Krüppel by maternal gene products

MPG-Autoren
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Gaul,  U       
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Jäckle,  H       
Department Biochemistry, Max Planck Institute for Developmental Biology, Max Planck Society;

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Zitation

Gaul, U., & Jäckle, H. (1987). Pole region-dependent repression of the Drosophila gap gene Krüppel by maternal gene products. Cell, 51(4), 549-555. doi:10.1016/0092-8674(87)90124-3.


Zitierlink: https://hdl.handle.net/21.11116/0000-000F-7DA2-E
Zusammenfassung
We examined the protein domain of the gap gene Krüppel (Kr) in mutants that affect the establishment of different regions of the segment pattern along the longitudinal axis of the Drosophila embryo. Our data suggest that Kr provides cues for establishing the "central" pattern elements at the blastoderm stage, and that Kr activity is controlled by maternal effect genes acting at the poles. The formation of the Kr protein domain may involve ubiquitous activation of Kr gene expression which, however, is limited by region-specific repression through the action of the maternal anterior and posterior pattern organizer genes. In addition, the formation of the Kr protein domain depends on the activity of gap genes acting adjacent to the Kr domain, but it is independent of subordinate pair-rule gene activities.