Summary
Phase shifting and abolishing the circadian oscillation which controls eclosion inDrosophila pseudoobscura does not shorten the life of the flies and does not impair eclosion out of the puparium. However, the activity rhythm of the flies is controlled by a circadian oscillator which differs in period length, sensitivity to light and other features from the one controlling eclosion. Therefore, perturbing the oscillation controlling eclosion does not necessarily imply a corresponding perturbation of the oscillation controlling activity.
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Dedicated to Professor Colin S. Pittendrigh on the occasion of his 60th birthday
With the participation of Barbie Butler, Department of Zoology, University of Washington, Seattle, Washington, USA; Maroli K. Chandrashekaran, Department of Biological Sciences, Madurai University, Madurai, India; and Gottfried Wiedenmann, Department of Biology I. University of Tübingen. D-7400 Tübingen, Federal Republic of Germany
This work was supported by a grant of the Deutsche Forschungsgemeinschaft (En 42/19).
We are thankful to Dr. Saunders and Dr. Winfree for corrections.
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Engelmann, W., Mack, J. Different oscillators control the circadian rhythm of eclosion and activity inDrosophila . J. Comp. Physiol. 127, 229–237 (1978). https://doi.org/10.1007/BF01350113
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DOI: https://doi.org/10.1007/BF01350113