Unexpected Geographic Variability of the Free Running Period in the Linden Bug Pyrrhocoris apterus
| Autor: | Stepan Cada, Olga Peckova, Lenka Pivarciova, Jan Provaznik, Joanna Kotwica-Rolinska, Bulah Chia-hsiang Wu, David Dolezel, Olga Bazalová, Hanka Vaneckova, Petr Kment, Martin Pivarci |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Male Time Factors Physiology Range (biology) Period (gene) Circadian clock Geographic variation Motor Activity Latitude Heteroptera 03 medical and health sciences 0302 clinical medicine Altitude Physiology (medical) Circadian Clocks Animals Tilia Europe Eastern Israel Phylogeny biology Geography Ecology Pyrrhocoris biology.organism_classification Circadian Rhythm Europe Phylogeography 030104 developmental biology Evolutionary biology Female 030217 neurology & neurosurgery |
| Zdroj: | Journal of biological rhythms. 31(6) |
| ISSN: | 1552-4531 |
| Popis: | Circadian clocks keep organisms in synchrony with external day-night cycles. The free running period (FRP) of the clock, however, is usually only close to—not exactly—24 h. Here, we explored the geographical variation in the FRP of the linden bug, Pyrrhocoris apterus, in 59 field-lines originating from a wide variety of localities representing geographically different environments. We have identified a remarkable range in the FRPs between field-lines, with the fastest clock at ~21 h and the slowest close to 28 h, a range comparable to the collections of clock mutants in model organisms. Similarly, field-lines differed in the percentage of rhythmic individuals, with a minimum of 13.8% and a maximum of 86.8%. Although the FRP correlates with the latitude and perhaps with the altitude of the locality, the actual function of this FRP diversity is currently unclear. With the recent technological progress of massive parallel sequencing and genome editing, we can expect remarkable progress in elucidating the genetic basis of similar geographic variants in P. apterus or in similar emerging model species of chronobiology. |
| Databáze: | OpenAIRE |
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