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Updated: Jun 28, 2026

Circadian Entrainment of Drosophila Melanogaster
Published on: June 3, 2020
Comment on "Differential rescue of light- and food-entrainable circadian rhythms"
Ralph E Mistlberger1, Shin Yamazaki, Julie S Pendergast
1Department of Psychology, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada. mistlber@sfu.ca
Abstract:
Fuller et al. (Reports, 23 May 2008, p. 1074) reported that the dorsomedial hypothalamus contains a Bmal1-based oscillator that can drive food-entrained circadian rhythms. We report that mice bearing a null mutation of Bmal1 exhibit normal food-anticipatory circadian rhythms. Lack of food anticipation in Bmal1-/- mice reported by Fuller et al. may reflect morbidity due to weight loss, thus raising questions about their conclusions.
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