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ID 61365
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Author
Abe, Masato S. Center for Advanced Intelligence Project, RIKEN
Matsumura, Kentarou Graduate School of Environmental and Life Science, Okayama University
Yoshii, Taishi Graduate School of Natural Science and Technology, Okayama University ORCID Kaken ID publons researchmap
Miyatake, Takahisa Graduate School of Environmental and Life Science, Okayama University ORCID Kaken ID publons researchmap
Abstract
Many species show rhythmicity in activity, from the timing of flowering in plants to that of foraging behavior in animals. The free-running periods and amplitude (sometimes called strength or power) of circadian rhythms are often used as indicators of biological clocks. Many reports have shown that these traits are highly geographically variable, and interestingly, they often show latitudinal or longitudinal clines. In many cases, the higher the latitude is, the longer the free-running circadian period (i.e., period of rhythm) in insects and plants. However, reports of positive correlations between latitude or longitude and circadian rhythm traits, including free-running periods, the power of the rhythm and locomotor activity, are limited to certain taxonomic groups. Therefore, we collected a cosmopolitan stored-product pest species, the red flour beetle Tribolium castaneum, in various parts of Japan and examined its rhythm traits, including the power and period of the rhythm, which were calculated from locomotor activity. The analysis revealed that the power was significantly lower for beetles collected in northern areas than southern areas in Japan. However, it is worth noting that the period of circadian rhythm did not show any clines; specifically, it did not vary among the sampling sites, despite the very large sample size (n = 1585). We discuss why these cline trends were observed in T. castaneum.
Published Date
2021-01-14
Publication Title
PLoS ONE
Volume
volume16
Issue
issue1
Publisher
Public Library of Science
Start Page
e0245115
ISSN
1932-6203
Content Type
Journal Article
language
English
OAI-PMH Set
岡山大学
Copyright Holders
© 2021 Abe et al.
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publisher
DOI
Related Url
isVersionOf https://doi.org/10.1371/journal.pone.0245115
License
https://creativecommons.org/licenses/by/4.0/
Funder Name
Japan Society for the Promotion of Science
助成番号
16K14810
18H02510