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Life sciences/Molecular biology/Molecular genetics/Gene expression/Gene regulation

Two AAAS members – one of them a AAAS fellow – were awarded the 2017 Nobel Prize in Physiology or Medicine.
In his presidential address, Fink said technical advances have transformed his field of genetics and spawned new fields of research.

For about 70 years, breeders have selected tomato varieties with uniformly light green fruit before ripening. These tomatoes then turn red evenly as they ripen, and they look nice in a supermarket display.

Researchers now have pinpointed the molecular changes responsible for this “uniform ripening” trait of many modern tomatoes. But these changes, they show, also reduce the fruit’s sugar content.