Elements of the Drosophila bithorax complex that mediate repression by Polycomb group products

Article Abstract:

Germline conversion models with parts of bdd, iab-2 or iab-3 regulatory areas of the bithorax complex (BX-C), that are regulated by the polycomb (Pc) group genes in embryos which encode repressors that limit the expression of homeotic genes to specific regions on the anterior-posterior (A-P) axis, have been identified. Pc group products offer stable memory or imprinting of boundaries, first determined by gap and pair-rule regulators, and they do not directly define A-P boundaries of homeotic expression.

Veterinary embryology

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Spook and Spookier code for stage-specific components of the ecdysone biosynthetic pathway in Diptera

Article Abstract:

The Spook and Spookier genes which code for biosynthetic pathway of Ecdysteroids in insects from the Diptera order are discussed.

Japan, Science & research, Research, Diptera, Ecdysteroids

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Unraveling cis-regulatory mechanisms at the abdominal-A and Abdominal-B genes in the Drosophila bithorax complex

Article Abstract:

An overview of genome sequencing and cis-regulatory techniques in the Drosophila bithorax complex is presented.

Methods, Chromosome mapping, Genetic research

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