Lunar Phase-Dependent Expression of Cryptochrome and a Photoperiodic Mechanism for Lunar Phase-Recognition in a Reef Fish, Goldlined Spinefoot

Fukushiro, Masato; Takeuchi, Takahiro; Takeuchi, Yuki; Hur, Sung Pyo; Sugama, Nozomi; Takemura, Akihiro; Kubo, Yoko; Okano, Keiichi; Okano, Toshiyuki

doi:10.1371/journal.pone.0028643

Cited by 40 publications

(40 citation statements)

References 42 publications

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“…) and in the reef fish S. guttatus (Fukushiro et al . ) did in fact find differences in core circadian gene expression between full and new moon, consistent with the observations reported here and the model presented in Fig. .…”

Section: Discussionsupporting

confidence: 92%

“…Some vertebrates, for example the reef fish S. guttatus (Fukushiro et al . ), also link reproduction to the lunar cycle, as do a wide variety of other marine phyla, and it will be interesting to determine whether cell division rates also show a lunar association in these other species.…”

Section: Discussionmentioning

confidence: 99%

“…), has been reported on full moon evenings, as have altered Period and Cryptochrome transcription (Fukushiro et al . ). A marine polychaete also shows differences in gene expression under laboratory conditions between new moon and constant full moon for Clock , Period and Pdp1 genes (Zantke et al .…”

Section: Introductionmentioning

confidence: 97%

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Transcriptome dynamics over a lunar month in a broadcast spawning acroporid coral

et al. 2017

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On one night per year, at a specific point in the lunar cycle, one of the most extraordinary reproductive events on the planet unfolds as hundreds of millions of broadcast spawning corals release their trillions of gametes into the waters of the tropical seas. Each species spawns on a specific night within the lunar cycle, typically from full moon to third quarter moon, and in a specific time window after sunset. This accuracy is essential to achieve efficient fertilization in the vastness of the oceans. In this report, we use transcriptome sequencing at noon and midnight across an entire lunar cycle to explore how acroporid corals interpret lunar signals. The data were interrogated by both time-of-day-dependent and time-of-day-independent methods to identify different types of lunar cycles. Time-of-day methods found that genes associated with biological clocks and circadian processes change their diurnal cycles over the course of a synodic lunar cycle. Some genes have large differences between day and night at some lunar phases, but little or no diurnal differences at other phases. Many clock genes display an oscillation pattern indicative of phase shifts linked to the lunar cycle. Time-independent methods found that signal transduction, protein secretion and modification, cell cycle and ion transport change over the lunar timescale and peak at various phases of the moon. Together these data provide unique insights into how the moon impinges on coral transcription cycles and how lunar light may regulate circalunar timing systems and coral biology.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

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Transcriptome dynamics over a lunar month in a broadcast spawning acroporid coral

et al. 2017

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“…Interconnections between circadian and lunar rhythms are found in some marine organisms, such as corals and fishes (Levy et al, 2007;Vize, 2009;Fukushiro et al, 2011;Ikegami et al, 2014). It is suggested that the rhythmic expression of melatonin may serve as a possible transducer between lunar spawning rhythmicity and circadian rhythms in fishes (Ikegami et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…In contrast to the circadian rhythm, lunar cycles in marine organisms are most prominently involved in reproductive events, such as synchronous mass spawning (Tessmar-Raible et al, 2011). Lunar-controlled reproductive rhythms are widespread and are of fundamental importance for many marine organisms, including corals, sea urchins, mollusks, and fishes (Vize, 2009;Fukushiro et al, 2011;Ikegami et al, 2014). For these marine species, the lunar cycles provide a steady timeframe that can be used for developmental synchronization and mass spawning, even across widespread populations (Tessmar-Raible et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome survey of phototransduction and clock genes in marine bivalves

et al. 2016

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ABSTRACT. Marine animals exhibit a variety of biological rhythms, such as solar and lunar-related cycles; however, our current molecular understanding of biological rhythms in marine animals is quite limited. Identifying and understanding the expression patterns of clock genes from available transcriptomes will help elucidate biological rhythms in marine species. Here, we perform a comprehensive survey of phototransduction and circadian genes using the mantle transcriptome of the scallop Patinopecten yessoensis and compare the results with those from three other bivalves. The comparison reveals the presence of transcripts for most of the core members of the phototransduction and circadian networks seen in terrestrial model species in the four marine bivalves. Matches were found for all 37 queried genes, and the expressed transcripts from the deep sequencing data matched 8 key insect and mammalian circadian genes. This demonstrates the high level 2 X.J. Sun et al. Genetics and Molecular Research 15 (4): gmr15048726 of conservation of the timekeeping mechanism from terrestrial species to marine bivalves. The results provide a valuable gene resource for studies of "marine rhythms" and also further our understanding of the diversification and evolution of rhythms in marine species.

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Circalunar clocks—Old experiments for a new era

Kaiser

Neumann

2021

BioEssays

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Circalunar clocks, which allow organisms to time reproduction to lunar phase, have been experimentally proven but are still not understood at the molecular level. Currently, a new generation of researchers with new tools is setting out to fill this gap. Our essay provides an overview of classic experiments on circalunar clocks. From the unpublished work of the late D. Neumann we also present a novel phase response curve for a circalunar clock. These experiments highlight avenues for molecular work and call for rigor in setting up and analyzing the logistically complex experiments on circalunar clocks. Re-evaluating classic experiments, we propose that (1) circalunar clocks in different organisms will have divergent mechanisms and physiological bases, (2) they may have properties very different from the well-studied circadian clocks and (3) they may have close mechanistic and molecular relations to seasonal rhythms and diapause.

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Lunar Phase-Dependent Expression of Cryptochrome and a Photoperiodic Mechanism for Lunar Phase-Recognition in a Reef Fish, Goldlined Spinefoot

Cited by 40 publications

References 42 publications

Transcriptome dynamics over a lunar month in a broadcast spawning acroporid coral

Transcriptome dynamics over a lunar month in a broadcast spawning acroporid coral

Transcriptome survey of phototransduction and clock genes in marine bivalves

Circalunar clocks—Old experiments for a new era

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