期刊
EUROPEAN JOURNAL OF ENTOMOLOGY
卷 118, 期 -, 页码 1-13出版社
CZECH ACAD SCI, INST ENTOMOLOGY
DOI: 10.14411/eje.2021.001
关键词
Insects; photoperiodism; diapause; Bunning's hypothesis; clock models
类别
This review examines the sequence of events in the photoperiodic system in insects, from photoreception to seasonally-appropriate phenotypes such as overwintering diapause. Despite inter-species differences, a close relationship between circadian rhythmicity and photoperiodism is indicated, with Bonning's suggestion providing a framework for further studies.
In insects, the photoperiodic system comprises a linked sequence of events from photoreception to final seasonally-appropriate phenotypes such as overwintering diapause. The first and last of these events are reasonably well known, but central phenomena such as those distinguishing short from long days (time measurement) and the nature, accumulation and transfer of this information through development, metamorphosis and sometimes across generations remains obscure. BOnning's intuitive suggestion that photoperiodic time measurement was a function of the circadian system, made eight decades ago, however, has provided a framework for numerous studies investigating these connections. This review examines the development of BOnning's hypothesis from its origin in plants to the physiology of diapause in insects. Despite considerable inter-species differences, a close and probably causal relationship between circadian rhythmicity and photoperiodism is indicated.
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