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- W4311672400 abstract "In insect embryos, anteroposterior patterning is coordinated by the sequential expression of the 'timer' genes caudal, Dichaete, and odd-paired, whose expression dynamics correlate with the mode of segmentation. In Drosophila, the timer genes are expressed broadly across much of the blastoderm, which segments simultaneously, but their expression is delayed in a small 'tail' region, just anterior to the hindgut, which segments during germband extension. Specification of the tail and the hindgut depends on the terminal gap gene tailless, but beyond this the regulation of the timer genes is poorly understood. We used a combination of multiplexed imaging, mutant analysis, and gene network modelling to resolve the regulation of the timer genes, identifying 11 new regulatory interactions and clarifying the mechanism of posterior terminal patterning. We propose that a dynamic Tailless expression gradient modulates the intrinsic dynamics of a timer gene cross-regulatory module, delineating the tail region and delaying its developmental maturation." @default.
- W4311672400 created "2022-12-28" @default.
- W4311672400 creator A5064198958 @default.
- W4311672400 creator A5068202687 @default.
- W4311672400 creator A5081581043 @default.
- W4311672400 date "2022-12-16" @default.
- W4311672400 modified "2023-10-02" @default.
- W4311672400 title "A timer gene network is spatially regulated by the terminal system in the Drosophila embryo" @default.
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