About this book
This book reviews the physiological mechanisms of diverse insect clocks, including circadian clock, lunar clock, tidal clock, photoperiodism, circannual rhythms and others. It explains the commonality and diversity of insect clocks, focusing on the recent advances in their molecular and neural mechanisms.
In the history of chronobiology, insects provided important examples of diverse clocks. The first report of animal photoperiodism was in an aphid, and the time-compensated celestial navigation was first shown in the honeybee. The circadian clock was first localized in the brain of a cockroach. These diverse insect clocks also have some common features which deserve to be reviewed in a single book. The central molecular mechanism of the circadian clock, i.e., the negative feedback loop of clock genes, was proposed in Drosophila melanogaster in the 1990s and later became the subject of the Nobel Prize in Physiology or Medicine in 2017. Thereafter, researches on the molecular and neural mechanisms in diverse insect clocks other than the Drosophila circadian clock also advanced appreciably. Various new methods including RNAi, NGS, and genome editing with CRISPR-Cas9 have become applicable in these researches.
This book comprehensively reviews the physiological mechanisms in diverse insect clocks in the last two decades, which have received less attention than the Drosophila circadian clock. The book is intended for researchers, graduate students, and highly motivated undergraduate students in biological sciences, especially in entomology and chronobiology.
Contents
Chapter 1. Historical survey of chronobiology with reference to studies in insects
Part I. Circadian rhythms
Chapter 2. General features of circadian rhythms
Chapter 3. Photic entrainment of circadian rhythms
Chapter 4. Molecular mechanism of the circadian clock
Chapter 5. Neural mechanism of the circadian clock
Chapter 6. Peripheral circadian clock
Chapter 7. Circa-bidian rhythm
Chapter 8. Circadian rhythms in social insects
Chapter 9. Environmental adaptation and evolution of circadian rhythms
Part II. Other types of insect rhythms and photoperiodism
Chapter 10. Lunar and tidal rhythms
Chapter 11. Circannual rhythms
Chapter 12. General features of photoperiodism
Chapter 13. Molecular mechanism of photoperiodism
Chapter 14. Neural mechanism of photoperiodism
Chapter 15. Seasonal timer in aphids
Chapter 16. Time-compensated celestial navigation
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Biography
Hideharu Numata is an Emeritus Professor and a Program-Specific Professor at Kyoto University, Japan. He was a Professor at the Graduate School of Science, Osaka City University, Japan, from 1998 to 2009, and the Graduate School of Science, Kyoto University, from 2009 to 2021. His research interests include physiological mechanisms for seasonal adaptations in insects, e.g., photoperiodism and circannual rhythm. He was the President of the Entomological Society of Japan from 2013 to 2014, and a Councilor of the International Congress of Entomology from 2008 to 2016. He was the Editor-in-Chief of Entomological Science from 2010 to 2011 and Zoological Science from 2020 to 2021.
Kenji Tomioka is an Emeritus Professor and a Program-Specific Professor at Okayama University, Japan. He was a Professor at the Department of Biology, Faculty of Science, Yamaguchi University, Japan from 1995 to 2003, and the Graduate School of Natural Science and Technology, Okayama University, from 2003 to 2021. His research interests include the molecular and neural basis of insect circadian rhythms and photoperiodism. He has been a member of the editorial board of the Journal of Insect Physiology since 1992, Zoological Science since 2003, Zoological Letters since 2014, and Physiological Entomology since 2015.
