A pdf Neuropeptide gene mutation and ablation of PDF neurons each cause severe abnormalities of behavioral circadian rhythms in Drosophila.

In 2017 Hall shared the Nobel Prize in Physiology or Medicine with Michael Rosbash and Michael W. Young “for their discoveries of molecular mechanisms controlling the circadian rhythm.”

Order of authorship in the original publication: Renn, Park, Rosbash, Hll, Taghert. Full text available from cell.com at this link.