A molecular alarm clock awakens resting ovules

Wednesday, August 17, 2016 - 09:03 in Biology & Nature

At the start of reproductive life an ovary contains, on average, several thousands of immature ovules in a resting state that can last for several decades. But how does each resting ovule know that it is time to prepare for ovulation? In a study published in the latest issue of Nature Communications, researchers at Instituto Gulbenkian de Ciencia (IGC; Portugal), at University of Algarve (Portugal), and at University at Albany (USA) discovered in the fruit fly a molecular "alarm clock" that tells resting ovules when is the right time to wake up. Defects in this alarm clock result in female fertility problems.

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