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Ftz‐f1 is an orphan member of the nuclear hormone receptor superfamily. A 20‐hydroxyecdysone pulse allows ftz‐f1 gene expression, which then regulates the activity of downstream genes involved in major developmental progression events. In honeybees, the expression of genes like vitellogenin (vg), prophenoloxidase and juvenile hormone‐esterase during late pharate‐adult development is known to be hormonally...