Article
The circadian clock of fruit flies is blind after elimination of all known photoreceptors.
Neuron - 1 Apr 2001
Helfrich-Förster C, Winter C, Hofbauer A, Hall J C, Stanewsky R
Abstract excerpt
Circadian rhythms are entrained by light to follow the daily solar cycle. We show that Drosophila uses at least three light input pathways for this entrainment: (1) cryptochrome, acting in the pacemaker cells themselves, (2) the compound eyes, and (3) extraocular photoreception, possibly involving an internal structure known as the Hofbauer-Buchner eyelet, which is located underneath the compound eye and projects...
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