fruit

Spanish explorers may have brought the first peach pits to North America, but Indigenous communities helped the ubiquitous summer fruit really take root, according to a study led by a researcher at Penn State.

As described in the paper, the researchers created a novel genetic "cassette," a small group of DNA elements, and inserted it inside fruit flies as a proof-of-concept technology that could be applied to other insects.

The researchers studied how a gene called yellow is regulated in the fruit fly Drosophila.

Rough, thick hands, toughened by farming and fighting, plunge into a sack of harvested grain, feeling the fruits of their labor.

Similar sex differences have been seen in other animals, including fruit flies, rats, zebrafish and birds.