International Journal of Zoology Studies

International Journal of Zoology Studies


ISSN: 2455-7269

Vol. 4, Issue 6 (2019)

Regulation of biological clock through circadian rhythm in insects

Author(s): Varun Saini, Tanmaya Kumar Bhoi, Ipsita Samal, Pynhunlin Nola Kharkrang Dohling, Gopalakrishnan R, Swapnalisha Mohapatra
Abstract: Circadian rhythms are particularly ubiquitous in insects and, as in other organisms, have been the best analysed. Physiological circadian rhythms in insects have been well- documented in relation to hormone production, particularly hormones controlling postembryonic development. The expression of rhythmicity in insects has been largely documented at the cellular level, in organs, as changes in the physiology and behaviour of individuals, as well as in population synchrony. Fruit flies, cockroaches, butterflies, honey bees, and other insects cast much light on the physiology and molecular basis of the circadian clock. Insect adaptation and success in the colonisation of the most diverse environments is also associated with the temporal organisation of their daily life. Circadian locomotor rhythms of the adult flies reflect endogenous, self-sustained oscillations with a temperature compensated period. The free-running rhythms become synchronised (entrained) to daily light:dark cycles, but become arrhythmic in constant light above a certain intensity. Some flies show fragmented rhythms (internal desynchronisation) suggesting that overt rhythmicity is the product of a multioscillator (multicellular) system.
Pages: 46-52  |  112 Views  30 Downloads
publish book online
library subscription
Journals List Click Here Research Journals Research Journals
Please use another browser.