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Green-sensitive opsin is the photoreceptor for photic entrainment of an insect circadian clock

Overview of attention for article published in Zoological Letters, February 2015
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Title
Green-sensitive opsin is the photoreceptor for photic entrainment of an insect circadian clock
Published in
Zoological Letters, February 2015
DOI 10.1186/s40851-015-0011-6
Pubmed ID
Authors

Sayaka Komada, Yuichi Kamae, Mitsumasa Koyanagi, Kousuke Tatewaki, Ehab Hassaneen, ASM Saifullah, Taishi Yoshii, Akihisa Terakita, Kenji Tomioka

Abstract

Entrainment to light cycle is a prerequisite for circadian rhythms to set daily physiological events to occur at an appropriate time of day. In hemimetabolous insects, the photoreceptor molecule for photic entrainment is still unknown. Since the compound eyes are the only circadian photoreceptor in the cricket Gryllus bimaculatus, we have investigated the role of three opsin genes expressed there, opsin-Ultraviolet (opUV), opsin-Blue (opB), and opsin-Long Wave (opLW) encoding a green-sensitive opsin in photic entrainment. A daily rhythm was detected in mRNA expressions of opB and opLW but not of opUV gene. When photic entrainment of circadian locomotor rhythms was tested after injection of double-stranded RNA (dsRNA) of three opsin genes, no noticeable effects were found in opUV RNAi and opB RNAi crickets. In opLW RNAi crickets, however, some crickets lost photic entrainability and the remaining crickets re-entrained with significantly longer transient cycles to a phase-advanced light-dark cycle as compared to control crickets. Crickets often lost entrainability when treated doubly with dsRNAs of two opsin genes including opLW. These results show that green-sensitive OpLW is the major circadian photoreceptor molecule for photic entrainment of locomotor rhythms in the cricket G. bimaculatus. Our finding will lead to further investigation of the photic entrainment mechanism at molecular and cellular levels, which still remains largely unknown.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 37 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 22%
Student > Master 4 11%
Researcher 4 11%
Student > Bachelor 3 8%
Professor 2 5%
Other 4 11%
Unknown 12 32%
Readers by discipline Count As %
Agricultural and Biological Sciences 15 41%
Biochemistry, Genetics and Molecular Biology 7 19%
Neuroscience 2 5%
Environmental Science 1 3%
Unknown 12 32%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 March 2015.
All research outputs
#18,836,331
of 23,344,526 outputs
Outputs from Zoological Letters
#155
of 171 outputs
Outputs of similar age
#187,034
of 256,492 outputs
Outputs of similar age from Zoological Letters
#11
of 11 outputs
Altmetric has tracked 23,344,526 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
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