Cracking the Centennial Enigma: Unveiling the Molecular Dice that Determine Bee Sex

Researchers from Heinrich Heine University Düsseldorf have identified a key gene, known as Csd (Complementary sex determiner), and the molecular mechanism associated with it, solving a genetic mystery that has persisted for over a century. The Csd gene, which can have over 100 variations, plays a crucial role in determining the sex of bees. When two different variants of the Csd gene are present, a female bee develops, while the presence of the same variants results in a male bee. The study sheds light on the intricate process of bee sex determination and may contribute to advancements in bee breeding.