Insect diapause is a dynamic process consisting of several successive phases. The
conception and naming of the phases is unsettled and, sometimes, ambiguous in the …

Photoperiodism is the ability of organisms to assess and use the day length as an
anticipatory cue to time seasonal events in their life histories. Photoperiodism is especially …

Whole-animal experiments devised to investigate possible association between
photoperiodic time measurement and the circadian system (Bünning's hypothesis) are …

Background Most organisms have evolved a circadian clock in order to anticipate daily
environmental changes and many of these organisms are also capable of sophisticated …

Understanding gene interaction and pleiotropy are long-standing goals of developmental
and evolutionary biology. We examine the genetic control of diapause in insects and show …

Photoperiodic diapause is a crucial adaptation to seasonal environmental variation in a
wide range of arthropods, but relatively little is known regarding the molecular basis of this …

In this article, we explore links between circadian clocks and the clock involved in
photoperiodic regulation of diapause in insects. Classical resonance (Nanda–Hamner) and …

The photoperiodic calendar is a seasonal time measurement system which allows insects to
cope with annual cycles of environmental conditions. Seasonal timing of entry into diapause …

Photoperiodism is an adaptive response used by organisms to assess day length and
anticipate upcoming seasons and to coordinate their (or their offspring's) development and …

After a slow start, the comparative analysis of clock genes in insects has developed into a
mature area of study in recent years. Brain transplant or surgical interventions in larger …