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Royan MR, Hodne K, Nourizadeh-Lillabadi R, Weltzien FA, Henkel C, Fontaine R. Day length regulates gonadotrope proliferation and reproduction via an intra-pituitary pathway in the model vertebrate Oryzias latipes. Commun Biol 2024; 7:388. [PMID: 38553567 PMCID: PMC10980775 DOI: 10.1038/s42003-024-06059-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 03/16/2024] [Indexed: 04/01/2024] Open
Abstract
In seasonally breeding mammals and birds, the production of the hormones that regulate reproduction (gonadotropins) is controlled by a complex pituitary-brain-pituitary pathway. Indeed, the pituitary thyroid-stimulating hormone (TSH) regulates gonadotropin expression in pituitary gonadotropes, via dio2-expressing tanycytes, hypothalamic Kisspeptin, RFamide-related peptide, and gonadotropin-releasing hormone neurons. However, in fish, how seasonal environmental signals influence gonadotropins remains unclear. In addition, the seasonal regulation of gonadotrope (gonadotropin-producing cell) proliferation in the pituitary is, to the best of our knowledge, not elucidated in any vertebrate group. Here, we show that in the vertebrate model Japanese medaka (Oryzias latipes), a long day seasonally breeding fish, photoperiod (daylength) not only regulates hormone production by the gonadotropes but also their proliferation. We also reveal an intra-pituitary pathway that regulates gonadotrope cell number and hormone production. In this pathway, Tsh regulates gonadotropes via folliculostellate cells within the pituitary. This study suggests the existence of an alternative regulatory mechanism of seasonal gonadotropin production in fish.
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Affiliation(s)
- Muhammad Rahmad Royan
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
| | - Kjetil Hodne
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
| | - Rasoul Nourizadeh-Lillabadi
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
| | - Finn-Arne Weltzien
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
| | - Christiaan Henkel
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway
| | - Romain Fontaine
- Department of Preclinical Science and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Ås, Norway.
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2
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Liu A, Chen C, Chen K, Shi Y, Grabowski RC, Qiu X. Effects of parental exposure to amitriptyline on the survival, development, behavior, and gene expression in zebrafish offspring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169173. [PMID: 38064809 DOI: 10.1016/j.scitotenv.2023.169173] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
In mammals, parental exposure to amitriptyline (AMI) has been proven to contribute to congenital disabilities in their offspring. However, no studies have paid attention to the adverse effects of parental exposure to amitriptyline on fish offspring. In this study, we exposed adult zebrafish (F0) to AMI (0.8 μg/L) for 21 days. Subsequently, these zebrafish (F0) were allowed to mate, and their offspring (F1) were collected to culture in clean water for 5 days. The mortality rate, average hatching time, and heart rate at 48 h post-fertilization (hpf) of F1 were investigated. Our results showed that parental exposure to AMI induced tachycardia and increased mortality in F1 zebrafish. Under a light/dark transition test, F1 larvae born from AMI-exposed parents exhibited lower locomotor activity in the dark period and decreased thigmotaxis in the light period. The transcriptome analysis showed that parental AMI exposure dysregulated some key pathways in their offspring. Through the prediction of key driver analysis, six differentially expressed genes (DEGs) were revealed as key driver genes involved in protein processing in endoplasmic reticulum (hspa5, hsp70.1, hsp90a), ribosome (rps27a) and PPAR signaling pathway (pparab and fabp2). Considering that the concentration of AMI residual components in natural water bodies may be over our test concentration (0.8 μg/L), our findings suggested that toxicity of parental exposure to the offspring of fish should receive greater attention.
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Affiliation(s)
- Anqi Liu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Chen Chen
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Kun Chen
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yanhong Shi
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Robert C Grabowski
- Centre for Water, Environment and Development, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK
| | - Xuchun Qiu
- Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China.
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3
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Nakayama T, Tanikawa M, Okushi Y, Itoh T, Shimmura T, Maruyama M, Yamaguchi T, Matsumiya A, Shinomiya A, Guh YJ, Chen J, Naruse K, Kudoh H, Kondo Y, Naoki H, Aoki K, Nagano AJ, Yoshimura T. A transcriptional program underlying the circannual rhythms of gonadal development in medaka. Proc Natl Acad Sci U S A 2023; 120:e2313514120. [PMID: 38109538 PMCID: PMC10756274 DOI: 10.1073/pnas.2313514120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/16/2023] [Indexed: 12/20/2023] Open
Abstract
To cope with seasonal environmental changes, organisms have evolved approximately 1-y endogenous circannual clocks. These circannual clocks regulate various physiological properties and behaviors such as reproduction, hibernation, migration, and molting, thus providing organisms with adaptive advantages. Although several hypotheses have been proposed, the genes that regulate circannual rhythms and the underlying mechanisms controlling long-term circannual clocks remain unknown in any organism. Here, we show a transcriptional program underlying the circannual clock in medaka fish (Oryzias latipes). We monitored the seasonal reproductive rhythms of medaka kept under natural outdoor conditions for 2 y. Linear regression analysis suggested that seasonal changes in reproductive activity were predominantly determined by an endogenous program. Medaka hypothalamic and pituitary transcriptomes were obtained monthly over 2 y and daily on all equinoxes and solstices. Analysis identified 3,341 seasonally oscillating genes and 1,381 daily oscillating genes. We then examined the existence of circannual rhythms in medaka via maintaining them under constant photoperiodic conditions. Medaka exhibited approximately 6-mo free-running circannual rhythms under constant conditions, and monthly transcriptomes under constant conditions identified 518 circannual genes. Gene ontology analysis of circannual genes highlighted the enrichment of genes related to cell proliferation and differentiation. Altogether, our findings support the "histogenesis hypothesis" that postulates the involvement of tissue remodeling in circannual time-keeping.
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Affiliation(s)
- Tomoya Nakayama
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- Institute for Advanced Research, Nagoya University, Nagoya464-8601, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
| | - Miki Tanikawa
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Yuki Okushi
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Thoma Itoh
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki444-8787, Japan
- Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
| | - Tsuyoshi Shimmura
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
| | - Michiyo Maruyama
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Taiki Yamaguchi
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Akiko Matsumiya
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Ai Shinomiya
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki444-8787, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
- Laboratory of Bioresources, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
| | - Ying-Jey Guh
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Junfeng Chen
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
| | - Kiyoshi Naruse
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
- Laboratory of Bioresources, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
| | - Hiroshi Kudoh
- Center for Ecological Research, Kyoto University, Otsu, Shiga520-2113, Japan
| | - Yohei Kondo
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki444-8787, Japan
- Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
| | - Honda Naoki
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki444-8787, Japan
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima739-8511, Japan
| | - Kazuhiro Aoki
- Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki444-8787, Japan
- Division of Quantitative Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki444-8787, Japan
| | - Atsushi J. Nagano
- Department of Life Sciences, Faculty of Agriculture, Ryukoku University, Otsu520-2194, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka997-0052, Japan
| | - Takashi Yoshimura
- Laboratory of Animal Integrative Physiology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya464-8601, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, 444-8585Okazaki, Japan
- World Premier International Research Center Initiative, Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya464-8601, Japan
- Division of Animal Medical Science, Center for One Medicine Innovative Translational Research, Nagoya University, Nagoya464-8601, Japan
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4
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Nakayama T, Hirano F, Okushi Y, Matsuura K, Ohashi M, Matsumiya A, Yoshimura T. Orphan nuclear receptor nr4a1 regulates winter depression-like behavior in medaka. Neurosci Lett 2023; 814:137469. [PMID: 37669713 DOI: 10.1016/j.neulet.2023.137469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 09/07/2023]
Abstract
About 10% of the population suffers from depression in winter at high latitude. Although it has become a serious public health issue, its underlying mechanism remains unknown and new treatments and therapies are required. As an adaptive strategy, many animals also exhibit depression-like behavior in winter. Previously, it has been reported that celastrol, a traditional Chinese medicine, can rescue winter depression-like behavior in medaka, an excellent model of winter depression. Nuclear receptor subfamily 4 group A member 1 (nr4a1, also known as nur77) is a known target of celastrol, and the signaling pathway of nr4a1 was suggested to be inactive in medaka brain during winter, implying the association of nr4a1 and winter depression-like behavior. However, the direct evidence for its involvement in winter depression-like behavior remains unclear. The present study found that nr4a1 was suppressed in the medaka brain under winter conditions. Cytosporone B, nr4a1 chemical activator, reversed winter depression-like behavior under winter conditions. Additionally, nr4a1 mutant fish generated by CRISPR/Cas9 system showed decreased sociability under summer conditions. Therefore, our results demonstrate that the seasonal regulation of nr4a1 regulates winter depression-like behavior and offers potential therapeutic target.
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Affiliation(s)
- Tomoya Nakayama
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute for Advanced Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Fuka Hirano
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Yuki Okushi
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Kosuke Matsuura
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Miki Ohashi
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Akiko Matsumiya
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Takashi Yoshimura
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan.
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5
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Seki T, Takeuchi H, Ansai S. Optogenetic control of medaka behavior with channelrhodopsin. Dev Growth Differ 2023; 65:288-299. [PMID: 37354208 DOI: 10.1111/dgd.12872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/15/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
Optogenetics enables the manipulation of neural activity with high spatiotemporal resolution in genetically defined neurons. The method is widely used in various model animals in the neuroscience and physiology fields. Channelrhodopsins are robust tools for optogenetic manipulation, but they have not yet been used for studies in medaka. In the present study, we used the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9-mediated knock-in approach to establish a transgenic medaka strain expressing the Chloromonas oogama channelrhodopsin (CoChR) in the ISL LIM homeobox 1 (isl1) locus. We demonstrated that light stimuli elicited specific behavioral responses, such as bending or turning locomotion in the embryos and pectoral fin movements in the larvae and adults. The response probabilities and intensities of these movements could be controlled by adjusting the intensity, duration, or wavelength of each light stimulus. Furthermore, we demonstrated that the pectoral fin movements in the adult stage could be elicited using a laser pointer to irradiate region including the caudal hind brain and the rostral spinal cord. Our results indicate that CoChR allows for manipulation of medaka behaviors by activating targeted neurons, which will further our understanding of the detailed neural mechanisms of motor control or social behaviors in medaka.
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Affiliation(s)
- Takahide Seki
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hideaki Takeuchi
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Satoshi Ansai
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
- Laboratory of Genome Editing Breeding, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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6
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Shinomiya A, Adachi D, Shimmura T, Tanikawa M, Hiramatsu N, Ijiri S, Naruse K, Sakaizumi M, Yoshimura T. Variation in responses to photoperiods and temperatures in Japanese medaka from different latitudes. ZOOLOGICAL LETTERS 2023; 9:16. [PMID: 37480068 PMCID: PMC10362753 DOI: 10.1186/s40851-023-00215-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/01/2023] [Indexed: 07/23/2023]
Abstract
Seasonal changes are more robust and dynamic at higher latitudes than at lower latitudes, and animals sense seasonal changes in the environment and alter their physiology and behavior to better adapt to harsh winter conditions. However, the genetic basis for sensing seasonal changes, including the photoperiod and temperature, remains unclear. Medaka (Oryzias latipes species complex), widely distributed from subtropical to cool-temperate regions throughout the Japanese archipelago, provides an excellent model to tackle this subject. In this study, we examined the critical photoperiods and critical temperatures required for seasonal gonadal development in female medaka from local populations at various latitudes. Intraspecific differences in critical photoperiods and temperatures were detected, demonstrating that these differences were genetically controlled. Most medaka populations could perceive the difference between photoperiods for at least 1 h. Populations in the Northern Japanese group required 14 h of light in a 24 h photoperiod to develop their ovaries, whereas ovaries from the Southern Japanese group developed under 13 h of light. Additionally, Miyazaki and Ginoza populations from lower latitudes were able to spawn under short-day conditions of 11 and 10 h of light, respectively. Investigation of the critical temperature demonstrated that the Higashidori population, the population from the northernmost region of medaka habitats, had a critical temperature of over 18 °C, which was the highest critical temperature among the populations examined. The Miyazaki and the Ginoza populations, in contrast, were found to have critical temperatures under 14 °C. When we conducted a transplant experiment in a high-latitudinal environment using medaka populations with different seasonal responses, the population from higher latitudes, which had a longer critical photoperiod and a higher critical temperature, showed a slower reproductive onset but quickly reached a peak of ovarian size. The current findings show that low latitudinal populations are less responsive to photoperiodic and temperature changes, implying that variations in this responsiveness can alter seasonal timing of reproduction and change fitness to natural environments with varying harshnesses of seasonal changes. Local medaka populations will contribute to elucidating the genetic basis of seasonal time perception and adaptation to environmental changes.
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Affiliation(s)
- Ai Shinomiya
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan.
- Present Address: Laboratory of Bioresources, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan.
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi, Japan.
| | - Daisuke Adachi
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Aichi, Nagoya, Japan
| | - Tsuyoshi Shimmura
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
- Present Address: Department of Biological Production, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Miki Tanikawa
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Aichi, Nagoya, Japan
| | - Naoshi Hiramatsu
- Aquaculture Biology, Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Shigeho Ijiri
- Aquaculture Biology, Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Kiyoshi Naruse
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi, Japan
- Laboratory of Bioresources, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan
| | - Mitsuru Sakaizumi
- Department of Environmental Science, Institute of Science and Technology, Niigata University, Niigata, Japan
| | - Takashi Yoshimura
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi, Japan.
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan.
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Aichi, Nagoya, Japan.
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7
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Lu K, Wu J, Tang S, Jia X, Liang XF. Knockout of sws2a and sws2b in Medaka ( Oryzias latipes) Reveals Their Roles in Regulating Vision-Guided Behavior and Eye Development. Int J Mol Sci 2023; 24:ijms24108786. [PMID: 37240129 DOI: 10.3390/ijms24108786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/20/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
The medaka (Oryzias latipes) is an excellent vertebrate model for studying the development of the retina. Its genome database is complete, and the number of opsin genes is relatively small compared to zebrafish. Short wavelength sensitive 2 (sws2), a G-protein-coupled receptor expressed in the retina, has been lost in mammals, but its role in eye development in fish is still poorly understood. In this study, we established a sws2a and sws2b knockout medaka model by CRISPR/Cas9 technology. We discovered that medaka sws2a and sws2b are mainly expressed in the eyes and may be regulated by growth differentiation factor 6a (gdf6a). Compared with the WT, sws2a-/- and sws2b-/- mutant larvae displayed an increase in swimming speed during the changes from light to dark. We also observed that sws2a-/- and sws2b-/- larvae both swam faster than WT in the first 10 s of the 2 min light period. The enhanced vision-guided behavior in sws2a-/- and sws2b-/- medaka larvae may be related to the upregulation of phototransduction-related genes. Additionally, we also found that sws2b affects the expression of eye development genes, while sws2a is unaffected. Together, these findings indicate that sws2a and sws2b knockouts increase vision-guided behavior and phototransduction, but on the other hand, sws2b plays an important role in regulating eye development genes. This study provides data for further understanding of the role of sws2a and sws2b in medaka retina development.
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Affiliation(s)
- Ke Lu
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Jiaqi Wu
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Shulin Tang
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Xiaodan Jia
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Xu-Fang Liang
- College of Fisheries, Chinese Perch Research Center, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
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8
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Fogg LG, Cortesi F, Gache C, Lecchini D, Marshall NJ, de Busserolles F. Developing and adult reef fish show rapid light-induced plasticity in their visual system. Mol Ecol 2023; 32:167-181. [PMID: 36261875 PMCID: PMC10099556 DOI: 10.1111/mec.16744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/06/2022] [Accepted: 10/17/2022] [Indexed: 12/29/2022]
Abstract
The visual capabilities of fish are optimized for their ecology and light environment over evolutionary time. Similarly, fish vision can adapt to regular changes in light conditions within their lifetime, e.g., ontogenetic or seasonal variation. However, we do not fully understand how vision responds to irregular short-term changes in the light environment, e.g., algal blooms and light pollution. In this study, we investigated the effect of short-term exposure to unnatural light conditions on opsin gene expression and retinal cell densities in juvenile and adult diurnal reef fish (convict surgeonfish; Acanthurus triostegus). Results revealed phenotypic plasticity in the retina across ontogeny, particularly during development. The most substantial differences at both molecular and cellular levels were found under constant dim light, while constant bright light and simulated artificial light at night had a lesser effect. Under dim light, juveniles and adults increased absolute expression of the cone opsin genes, sws2a, rh2c and lws, within a few days and juveniles also decreased densities of cones, inner nuclear layer cells and ganglion cells. These changes potentially enhanced vision under the altered light conditions. Thus, our study suggests that plasticity mainly comes into play when conditions are extremely different to the species' natural light environment, i.e., a diurnal fish in "constant night". Finally, in a rescue experiment on adults, shifts in opsin expression were reverted within 24 h. Overall, our study showed rapid, reversible light-induced changes in the retina of A. triostegus, demonstrating phenotypic plasticity in the visual system of a reef fish throughout life.
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Affiliation(s)
- Lily G Fogg
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Camille Gache
- PSL Research University, EPHE-UPVD-CNRS, UAR3278 CRIOBE, Papetoai, French Polynesia.,Laboratoire d'Excellence "CORAIL", Paris, France
| | - David Lecchini
- PSL Research University, EPHE-UPVD-CNRS, UAR3278 CRIOBE, Papetoai, French Polynesia.,Laboratoire d'Excellence "CORAIL", Paris, France
| | - N Justin Marshall
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Fanny de Busserolles
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia
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9
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Lucon-Xiccato T, Montalbano G, Frigato E, Loosli F, Foulkes NS, Bertolucci C. Medaka as a model for seasonal plasticity: Photoperiod-mediated changes in behaviour, cognition, and hormones. Horm Behav 2022; 145:105244. [PMID: 35988451 DOI: 10.1016/j.yhbeh.2022.105244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 06/02/2022] [Accepted: 08/08/2022] [Indexed: 11/25/2022]
Abstract
Teleosts display the highest level of brain plasticity of all vertebrates. Yet we still know little about how seasonality affects fish behaviour and the underlying cognitive mechanisms since the common neurobehavioral fish models are native to tropical environments where seasonal variation is absent or reduced. The medaka, Oryzias latipes, which inhabits temperate zone habitats, represents a promising model in this context given its large phenotypic changes associated with seasonality and the possibility to induce seasonal plasticity by only manipulating photoperiod. Here, we report the first extended investigation of seasonal plasticity in medaka behaviour and cognition, as well as the potential underlying molecular mechanisms. We compared medaka exposed to summer photoperiod (16 h light:8 h dark) with medaka exposed to winter photoperiod (8 h light:16 h dark), and detected substantial differences. Medaka were more active and less social in summer photoperiod conditions, two effects that emerged in the second half of an open-field and a sociability test, respectively, and might be at least in part related to habituation to the testing apparatus. Moreover, the cognitive phenotype was significantly affected: in the early response to a social stimulus, brain functional lateralisation shifted between the two hemispheres under the two photoperiod conditions, and inhibitory and discrimination learning performance were reduced in summer conditions. Finally, the expression of genes encoding key pituitary hormones, tshß and gh, and of the tshß regulatory transcription factor tef in the brain was increased in summer photoperiod conditions. This work reveals remarkable behavioural and cognitive phenotypic plasticity in response to photoperiod in medaka, and suggests a potential regulatory role for the same hormones involved in seasonal plasticity of other vertebrates.
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Affiliation(s)
- Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giulia Montalbano
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Elena Frigato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Felix Loosli
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Nicholas S Foulkes
- Institute of Biological and Chemical Systems, Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
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10
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Toyota K, Usami K, Mizusawa K, Ohira T. Effect of Blue Light on the Growth of the Red Swamp Crayfish Procambraus clarkii Larvae -Seasonal and Sexual Differences. Zool Stud 2022; 60:e3. [PMID: 35774261 PMCID: PMC9168507 DOI: 10.6620/zs.2022.61-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 12/19/2021] [Indexed: 06/15/2023]
Abstract
Organisms have the ability to adapt their behavior and physiology in response to seasonal changes in their habitat's environments. Although it is known that a specific light wavelength affects growth and reproduction in various animal taxa, its effect on sexual and seasonal differences in year-round breeding animals remains unclear. Here, we demonstrate that a blue light stimulus promotes or suppresses larval growth in the red swamp crayfish Procambarus clarkia depending on the season. During the spawning season (natural growing period), blue light irradiation accelerates female growth faster than in males, but suppresses growth in both females and males in the overwintering season. Moreover, these seasonal plastic effects of blue light show apparent sexual differences, with female juveniles exhibiting the greatest sensitivity. Our findings provide an opportunity to research how the red swamp crayfish can adapt to various habitable niches from the point of view of light color perception, and can be applied for the development of a more effective aquaculture system, not only for crayfish, but also for other commercially available decapod crustaceans using a specific light environment.
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Affiliation(s)
- Kenji Toyota
- Marine Biological Station, Sado Center for Ecological Sustainability, Niigata University, Sado, Niigata 952-2135, Japan. E-mail: (Toyota)
- Department of Biological Sciences, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa, 259-1293, Japan. E-mail: (Usami); (Ohira)
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan
| | - Kazuki Usami
- Department of Biological Sciences, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa, 259-1293, Japan. E-mail: (Usami); (Ohira)
| | - Kanta Mizusawa
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa 252-0373, Japan. E-mail: (Mizusawa)
| | - Tsuyoshi Ohira
- Department of Biological Sciences, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa, 259-1293, Japan. E-mail: (Usami); (Ohira)
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11
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Wang MC, Hsu MT, Lin CC, Hsu SC, Chen RD, Lee JR, Chou YL, Tseng HP, Furukawa F, Hwang SPL, Hwang PP, Tseng YC. Adaptive metabolic responses in a thermostabilized environment: Transgenerational trade-off implications from tropical tilapia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150672. [PMID: 34597556 DOI: 10.1016/j.scitotenv.2021.150672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/24/2021] [Accepted: 09/25/2021] [Indexed: 06/13/2023]
Abstract
Relatively warm environments caused by global warming enhance the productivity of aquaculture activities in tropical/subtropical regions; however, the intermittent cold stress (ICS) caused by negative Arctic Oscillation can still result in major economic losses. In contrast to endotherms, ectothermic fishes experience ambient temperature as an abiotic factor that is central to performance and survival. Therefore, the occurrence of extreme temperatures caused by climate change has ignited a surge of scientific interest from ecologists, economists and physiologists. In this study, we test the transgenerational effects of rearing cold-experienced (CE) and cold-naïve (CN) strains of tropical tilapia. Our results show that compared to CN tilapia, the CE strain preferentially converts carbohydrates into lipids in liver at a regular temperature of 27 °C. Besides, at a low temperature of 22 °C, the CE strain exhibits a broader aerobic scope than CN fish, and their metabolite profile suggests a metabolic shift towards the utilization of glutamate derivatives. Therefore, in response to thermal perturbations, this transgenerational metabolic adjustment provides evidence into the adaptive trade-off mechanisms in tropical fish. Nevertheless, global warming may result in less thermal variation each year, and the stabilized ambient temperature may cause tropical tilapia to gradually exhibit lower energy deposits in liver. In addition to those habitants in cold and temperate regions, a lack of cold exposure to multiple generations of fish may decrease the native cold-tolerance traits of subtropical/tropical organisms; this notion has not been previously explored in terms of the biological effects under anthropogenic climate change.
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Affiliation(s)
- Min-Chen Wang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan; Biodiversity Program, Taiwan International Graduate Program, Academia Sinica and National Taiwan Normal University, Taipei, Taiwan; Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Mao-Ting Hsu
- Neurobiology Research Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Ching-Chun Lin
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Shao-Chun Hsu
- Branch Office of Research and Development, National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Ruo-Dong Chen
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Jay-Ron Lee
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Yi-Lin Chou
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Hua-Pin Tseng
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Fumiya Furukawa
- School of Marine Biosciences, Kitasato University, Tokyo, Japan
| | - Sheng-Ping L Hwang
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Pung-Pung Hwang
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan
| | - Yung-Che Tseng
- Institute of Cellular and Organism Biology, Academia Sinica, Taipei City, Taiwan.
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12
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Downer-Bartholomew BMB, Rodd FH. Female preference for color-enhanced males: a test of the sensory bias model in medaka, a drab fish. Behav Ecol 2021. [DOI: 10.1093/beheco/arab131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Sexual selection research has long focused on the evolution of female mate preferences. Most of the models that have been developed posit that mate preferences evolve in a mating context. In contrast, the sensory bias model proposes that mate choice preferences arise in a non-mating context, as a by-product of natural selection acting on a female’s perceptual system. Recent research has shown that many species of fishes, from across a large clade including poeciliids, goodeids, and medaka, have a bias for long wavelength (LW) colors (yellow, orange, red) in a non-mating context. Even species that do not have LW-colored ornaments, apparently because they have been lost secondarily, retain this latent bias for LW colors. Here, we predicted that female Oryzias latipes (Japanese medaka), a drab species with a latent preference for LW colors, would show a mate choice preference for males with an artificial secondary sexual trait—a colored stripe added to their flank. We confirmed that females were more responsive to red and orange objects in a non-mating context than to other colors. We also showed that females were less resistant towards males with an LW-colored stripe than to those enhanced with a non-LW stripe and that, for many females, responses towards specific LW colors were consistent across these non-mating and mating contexts. Therefore, our results provide support for the sensory bias model by providing a link between a sensory bias in a non-mating context and a mate choice preference in a drab species like medaka.
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Affiliation(s)
| | - F Helen Rodd
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
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13
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Zekoll T, Waldherr M, Tessmar-Raible K. Characterization of tmt-opsin2 in Medaka Fish Provides Insight Into the Interplay of Light and Temperature for Behavioral Regulation. Front Physiol 2021; 12:726941. [PMID: 34744767 PMCID: PMC8569850 DOI: 10.3389/fphys.2021.726941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/17/2021] [Indexed: 12/02/2022] Open
Abstract
One of the big challenges in the study of animal behavior is to combine molecular-level questions of functional genetics with meaningful combinations of environmental stimuli. Light and temperature are important external cues, influencing the behaviors of organisms. Thus, understanding the combined effect of light and temperature changes on wild-type vs. genetically modified animals is a first step to understand the role of individual genes in the ability of animals to cope with changing environments. Many behavioral traits can be extrapolated from behavioral tests performed from automated motion tracking combined with machine learning. Acquired datasets, typically complex and large, can be challenging for subsequent quantitative analyses. In this study, we investigate medaka behavior of tmt-opsin2 mutants vs. corresponding wild-types under different light and temperature conditions using automated tracking combined with a convolutional neuronal network and a Hidden Markov model-based approach. The temperatures in this study can occur in summer vs. late spring/early autumn in the natural habitat of medaka fish. Under summer-like temperature, tmt-opsin2 mutants did not exhibit changes in overall locomotion, consistent with previous observations. However, detailed analyses of fish position revealed that the tmt-opsin2 mutants spent more time in central locations of the dish, possibly because of decreased anxiety. Furthermore, a clear difference in location and overall movement was obvious between the mutant and wild-types under colder conditions. These data indicate a role of tmt-opsin2 in behavioral adjustment, at least in part possibly depending on the season.
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Affiliation(s)
- Theresa Zekoll
- Max Perutz Labs, University of Vienna, Vienna Biocenter, Vienna, Austria
- Research Platform “Rhythms of Life, ” University of Vienna, Vienna BioCenter, Vienna, Austria
| | - Monika Waldherr
- Max Perutz Labs, University of Vienna, Vienna Biocenter, Vienna, Austria
- Research Platform “Rhythms of Life, ” University of Vienna, Vienna BioCenter, Vienna, Austria
| | - Kristin Tessmar-Raible
- Max Perutz Labs, University of Vienna, Vienna Biocenter, Vienna, Austria
- Research Platform “Rhythms of Life, ” University of Vienna, Vienna BioCenter, Vienna, Austria
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14
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Hosoya O, Chung M, Ansai S, Takeuchi H, Miyaji M. A modified Tet-ON system minimizing leaky expression for cell-type specific gene induction in medaka fish. Dev Growth Differ 2021; 63:397-405. [PMID: 34375435 DOI: 10.1111/dgd.12743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/28/2021] [Accepted: 07/27/2021] [Indexed: 12/18/2022]
Abstract
The Tet-ON system is an important molecular tool for temporally and spatially-controlled inducible gene expression. Here, we developed a Tet-ON system to induce transgene expression specifically in the rod photoreceptors of medaka fish. Our modified reverse tetracycline-controlled transcriptional transactivator (rtTAm) with 5 amino acid substitutions dramatically improved the leakiness of the transgene in medaka fish. We generated a transgenic line carrying a self-reporting vector with the rtTAm gene driven by the Xenopus rhodopsin promoter and a tetracycline response element (TRE) followed by the green fluorescent protein (GFP) gene. We demonstrated that GFP fluorescence was restricted to the rod photoreceptors in the presence of doxycycline in larval fish (9 days post-fertilization). The GFP fluorescence intensity was enhanced with longer durations of doxycycline treatment up to 72 h and in a dose-dependent manner (5-45 μg/ml). These findings demonstrate that the Tet-ON system using rtTAm allows for spatiotemporal control of transgene expression, at least in the rod photoreceptors, in medaka fish.
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Affiliation(s)
- Osamu Hosoya
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Myung Chung
- Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan.,Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - Satoshi Ansai
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hideaki Takeuchi
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan.,Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Mary Miyaji
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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15
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Mitchell LJ, Cheney KL, Luehrmann M, Marshall NJ, Michie K, Cortesi F. Molecular evolution of ultraviolet visual opsins and spectral tuning of photoreceptors in anemonefishes (Amphiprioninae). Genome Biol Evol 2021; 13:6347585. [PMID: 34375382 PMCID: PMC8511661 DOI: 10.1093/gbe/evab184] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2021] [Indexed: 11/29/2022] Open
Abstract
Many animals including birds, reptiles, insects, and teleost fishes can see ultraviolet (UV) light (shorter than 400 nm), which has functional importance for foraging and communication. For coral reef fishes, shallow reef environments transmit a broad spectrum of light, rich in UV, driving the evolution of diverse spectral sensitivities. However, the identities and sites of the specific visual genes that underly vision in reef fishes remain elusive and are useful in determining how evolution has tuned vision to suit life on the reef. We investigated the visual systems of 11 anemonefish (Amphiprioninae) species, specifically probing for the molecular pathways that facilitate UV-sensitivity. Searching the genomes of anemonefishes, we identified a total of eight functional opsin genes from all five vertebrate visual opsin subfamilies. We found rare instances of teleost UV-sensitive SWS1 opsin gene duplications that produced two functionally coding paralogs (SWS1α and SWS1β) and a pseudogene. We also found separate green sensitive RH2A opsin gene duplicates not yet reported in the family Pomacentridae. Transcriptome analysis revealed false clown anemonefish (Amphiprion ocellaris) expressed one rod opsin (RH1) and six cone opsins (SWS1β, SWS2B, RH2B, RH2A-1, RH2A-2, LWS) in the retina. Fluorescent in situ hybridization highlighted the (co-)expression of SWS1β with SWS2B in single cones, and either RH2B, RH2A, or RH2A together with LWS in different members of double cone photoreceptors (two single cones fused together). Our study provides the first in-depth characterization of visual opsin genes found in anemonefishes and provides a useful basis for the further study of UV-vision in reef fishes.
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Affiliation(s)
- Laurie J Mitchell
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Karen L Cheney
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Martin Luehrmann
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - N Justin Marshall
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Kyle Michie
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia.,King's College, Cambridge, CB2 1ST, UK
| | - Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
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16
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Musilova Z, Salzburger W, Cortesi F. The Visual Opsin Gene Repertoires of Teleost Fishes: Evolution, Ecology, and Function. Annu Rev Cell Dev Biol 2021; 37:441-468. [PMID: 34351785 DOI: 10.1146/annurev-cellbio-120219-024915] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Visual opsin genes expressed in the rod and cone photoreceptor cells of the retina are core components of the visual sensory system of vertebrates. Here, we provide an overview of the dynamic evolution of visual opsin genes in the most species-rich group of vertebrates, teleost fishes. The examination of the rich genomic resources now available for this group reveals that fish genomes contain more copies of visual opsin genes than are present in the genomes of amphibians, reptiles, birds, and mammals. The expansion of opsin genes in fishes is due primarily to a combination of ancestral and lineage-specific gene duplications. Following their duplication, the visual opsin genes of fishes repeatedly diversified at the same key spectral-tuning sites, generating arrays of visual pigments sensitive from the ultraviolet to the red spectrum of the light. Species-specific opsin gene repertoires correlate strongly with underwater light habitats, ecology, and color-based sexual selection. Expected final online publication date for the Annual Review of Cell and Developmental Biology, Volume 37 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Zuzana Musilova
- Department of Zoology, Charles University, Prague 128 44, Czech Republic;
| | | | - Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, Brisbane 4072, Queensland, Australia;
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17
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Zeng CW, Kamei Y, Shigenobu S, Sheu JC, Tsai HJ. Injury-induced Cavl-expressing cells at lesion rostral side play major roles in spinal cord regeneration. Open Biol 2021; 11:200304. [PMID: 33622104 PMCID: PMC8061693 DOI: 10.1098/rsob.200304] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The extent of cellular heterogeneity involved in neuronal regeneration after spinal cord injury (SCI) remains unclear. Therefore, we established stress-responsive transgenic zebrafish embryos with SCI. As a result, we found an SCI-induced cell population, termed SCI stress-responsive regenerating cells (SrRCs), essential for neuronal regeneration post-SCI. SrRCs were mostly composed of subtypes of radial glia (RGs-SrRCs) and neuron stem/progenitor cells (NSPCs-SrRCs) that are able to differentiate into neurons, and they formed a bridge across the lesion and connected with neighbouring undamaged motor neurons post-SCI. Compared to SrRCs at the caudal side of the SCI site (caudal-SrRCs), rostral-SrRCs participated more actively in neuronal regeneration. After RNA-seq analysis, we discovered that caveolin 1 (cav1) was significantly upregulated in rostral-SrRCs and that cav1 was responsible for the axonal regrowth and regenerative capability of rostral-SrRCs. Collectively, we define a specific SCI-induced cell population, SrRCs, involved in neuronal regeneration, demonstrate that rostral-SrRCs exhibit higher neuronal differentiation capability and prove that cav1 is predominantly expressed in rostral-SrRCs, playing a major role in neuronal regeneration after SCI.
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Affiliation(s)
- Chih-Wei Zeng
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei 10617, Taiwan.,Liver Disease Prevention and Treatment Research Foundation, Taipei 10008, Taiwan
| | - Yasuhiro Kamei
- Spectrography and Bioimaging Facility, National Institute for Basic Biology (NIBB), National Institutes of Natural Sciences (NINS), Okazaki 444-8585, Japan.,Department of Basic Biology, The Graduate University for Advanced Studies (SOKENDAI), Okazaki 444-8585, Japan
| | - Shuji Shigenobu
- Department of Basic Biology, The Graduate University for Advanced Studies (SOKENDAI), Okazaki 444-8585, Japan.,Functional Genomics Facility, NIBB, NINS, Okazaki 444-8585, Japan
| | - Jin-Chuan Sheu
- Liver Disease Prevention and Treatment Research Foundation, Taipei 10008, Taiwan
| | - Huai-Jen Tsai
- Institute of Biomedical Sciences, Mackay Medical College, New Taipei City 25245, Taiwan.,Department of Life Science, Fu Jen Catholic University, New Taipei City 242062, Taiwan
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18
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Zeng CW, Sheu JC, Tsai HJ. The Neuronal Regeneration of Adult Zebrafish After Spinal Cord Injury Is Enhanced by Transplanting Optimized Number of Neural Progenitor Cells. Cell Transplant 2021; 29:963689720903679. [PMID: 32233781 PMCID: PMC7444222 DOI: 10.1177/0963689720903679] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cell transplantation is commonly used to study the regeneration and
repair of the nervous system in animals. However, a technical platform
used to evaluate the optimum number of transplanted cells in the
recipient’s spinal cord is little reported. Therefore, to develop such
platform, we used a zebrafish model, which has transparent embryos,
and transgenic line huORFZ, which generates green
fluorescent protein (GFP)-expressing cells in the central nervous
system under hypoxic stress. After GFP-expressing cells, also termed
as hypoxia-responsive recovering cells, were obtained from
hypoxia-exposed huORFZ embryos, we transplanted these
GFP-(+) cells into the site of spinal cord injury (SCI) in adult
wild-type zebrafish, followed by assessing the relationship between
number of transplanted cells and the survival rate of recipients. When
100, 300, 500, and 1,000 GFP-(+) donor cells were transplanted into
the lesion site of SCI-treated recipients, we found that recipient
adult zebrafish transplanted with 300 donor cells had the highest
survival rate. Those GFP-(+) donor cells could undergo proliferation
and differentiation into neuron in recipients. Furthermore,
transplantation of GFP-(+) cells into adult zebrafish treated with SCI
was able to enhance the neuronal regeneration of recipients. In
contrast, those fish transplanted with over 500 cells showed signs of
inflammation around the SCI site, resulting in higher mortality. In
this study, we developed a technological platform for transplanting
cells into the lesion site of SCI-treated adult zebrafish and defined
the optimum number of successfully transplanted cells into recipients,
as 300, and those GFP-(+) donor cells could enhance recipient’s spinal
cord regeneration. Thus, we provided a practical methodology for
studying cell transplantation therapy in neuronal regeneration of
zebrafish after SCI.
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Affiliation(s)
- Chih-Wei Zeng
- Institute of Molecular and Cellular Biology, College of Life Science, National Taiwan University, Taipei.,Liver Disease Prevention and Treatment Research Foundation, Taipei
| | - Jin-Chuan Sheu
- Liver Disease Prevention and Treatment Research Foundation, Taipei
| | - Huai-Jen Tsai
- Institute of Biomedical Science, Mackay Medical College, New Taipei City
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19
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Photoperiodic regulation of dopamine signaling regulates seasonal changes in retinal photosensitivity in mice. Sci Rep 2021; 11:1843. [PMID: 33469071 PMCID: PMC7815869 DOI: 10.1038/s41598-021-81540-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/08/2021] [Indexed: 12/28/2022] Open
Abstract
At high latitudes, approximately 10% of people suffer from depression during the winter season, a phenomenon known as seasonal affective disorder (SAD). Shortened photoperiod and/or light intensity during winter season are risk factors for SAD, and bright light therapy is an effective treatment. Interestingly, reduced retinal photosensitivity along with the mood is observed in SAD patients in winter. However, the molecular basis underlying seasonal changes in retinal photosensitivity remains unclear, and pharmacological intervention is required. Here we show photoperiodic regulation of dopamine signaling and improvement of short day–attenuated photosensitivity by its pharmacological intervention in mice. Electroretinograms revealed dynamic seasonal changes in retinal photosensitivity. Transcriptome analysis identified short day-mediated suppression of the Th gene, which encodes tyrosine hydroxylase, a rate-limiting enzyme for dopamine biosynthesis. Furthermore, pharmacological intervention in dopamine signaling through activation of the cAMP signaling pathway rescued short day–attenuated photosensitivity, whereas dopamine receptor antagonists decreased photosensitivity under long-day conditions. Our results reveal molecular basis of seasonal changes in retinal photosensitivity in mammals. In addition, our findings provide important insights into the pathogenesis of SAD and offer potential therapeutic interventions.
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20
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de Busserolles F, Cortesi F, Fogg L, Stieb SM, Luehrmann M, Marshall NJ. The visual ecology of Holocentridae, a nocturnal coral reef fish family with a deep-sea-like multibank retina. J Exp Biol 2021; 224:jeb233098. [PMID: 33234682 DOI: 10.1242/jeb.233098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 11/16/2020] [Indexed: 12/21/2022]
Abstract
The visual systems of teleost fishes usually match their habitats and lifestyles. Since coral reefs are bright and colourful environments, the visual systems of their diurnal inhabitants have been more extensively studied than those of nocturnal species. In order to fill this knowledge gap, we conducted a detailed investigation of the visual system of the nocturnal reef fish family Holocentridae. Results showed that the visual system of holocentrids is well adapted to their nocturnal lifestyle with a rod-dominated retina. Surprisingly, rods in all species were arranged into 6-17 well-defined banks, a feature most commonly found in deep-sea fishes, that may increase the light sensitivity of the eye and/or allow colour discrimination in dim light. Holocentrids also have the potential for dichromatic colour vision during the day with the presence of at least two spectrally different cone types: single cones expressing the blue-sensitive SWS2A gene, and double cones expressing one or two green-sensitive RH2 genes. Some differences were observed between the two subfamilies, with Holocentrinae (squirrelfish) having a slightly more developed photopic visual system than Myripristinae (soldierfish). Moreover, retinal topography of both ganglion cells and cone photoreceptors showed specific patterns for each cell type, likely highlighting different visual demands at different times of the day, such as feeding. Overall, their well-developed scotopic visual systems and the ease of catching and maintaining holocentrids in aquaria, make them ideal models to investigate teleost dim-light vision and more particularly shed light on the function of the multibank retina and its potential for dim-light colour vision.
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Affiliation(s)
- Fanny de Busserolles
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Lily Fogg
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Sara M Stieb
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
- Center for Ecology, Evolution and Biogeochemistry, Eawag Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6074 Kastanienbaum, Switzerland; and Institute for Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
| | - Martin Luehrmann
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - N Justin Marshall
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
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21
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Hayasaka O, Anraku K, Akamatsu Y, Tseng YC, Archdale MV, Kotani T. Threshold and spectral sensitivity of vision in medaka Oryzias latipes determined by a novel template wave matching method. Comp Biochem Physiol A Mol Integr Physiol 2020; 251:110808. [PMID: 32979502 DOI: 10.1016/j.cbpa.2020.110808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/26/2020] [Accepted: 09/18/2020] [Indexed: 11/17/2022]
Abstract
We propose a new analytical method for determining the response threshold in electroretinogram (ERG) in which the wave shows a biphasic slow dc-potential shift. This method uses the recorded wave to the highest intensity stimuli in each wavelength tested as a template wave f(t), and it was compared with other recorded waves obtained under lower intensities g(t). Our test recordings in medaka Oryzias latipes were analogous between the template and the compared waveforms, although there were differences in amplitude and time lag (τ, peak time difference) which occurred as a result of the difference in stimulus intensity. Cross-correlation analysis was applied. Based on the obtained cross-correlation function Cfg(τ) in each comparison, τ was determined as the time lag at which the cross-correlation coefficient Rfg(τ) showed the maximum value. Determined thresholds that were based on both the experimenter's visual inspection and this new method agreed well when the adoption condition was set to satisfy R(τ) ≥ 0.7 and τ ≤ 150 ms in scotopic or τ ≤ 120 ms in photopic conditions. We concluded that this "template wave matching method" is a quick and reliable objective assessment that can be used to determine the threshold. This study analyzed ERG recordings in response to 6 kinds of wavelength light stimuli (380 nm to 620 nm) at different photon flux densities. We report the threshold levels and relative spectral sensitivities in scotopic and photopic vision of medaka.
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Affiliation(s)
- Oki Hayasaka
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Kazuhiko Anraku
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan; Faculty of Fisheries, Kagoshima University, Kagoshima, Japan.
| | - Yuya Akamatsu
- Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Yung-Che Tseng
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Miguel Vazquez Archdale
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan; Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
| | - Tomonari Kotani
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan; Faculty of Fisheries, Kagoshima University, Kagoshima, Japan
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22
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Chen J, Okimura K, Yoshimura T. Light and Hormones in Seasonal Regulation of Reproduction and Mood. Endocrinology 2020; 161:5879749. [PMID: 32738138 PMCID: PMC7442225 DOI: 10.1210/endocr/bqaa130] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 07/27/2020] [Indexed: 12/26/2022]
Abstract
Organisms that inhabit the temperate zone exhibit various seasonal adaptive behaviors, including reproduction, hibernation, molting, and migration. Day length, known as photoperiod, is the most noise-free and widely used environmental cue that enables animals to anticipate the oncoming seasons and adapt their physiologies accordingly. Although less clear, some human traits also exhibit seasonality, such as birthrate, mood, cognitive brain responses, and various diseases. However, the molecular basis for human seasonality is poorly understood. Herein, we first review the underlying mechanisms of seasonal adaptive strategies of animals, including seasonal reproduction and stress responses during the breeding season. We then briefly summarize our recent discovery of signaling pathways involved in the winter depression-like phenotype in medaka fish. We believe that exploring the regulation of seasonal traits in animal models will provide insight into human seasonality and aid in the understanding of human diseases such as seasonal affective disorder (SAD).
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Affiliation(s)
- Junfeng Chen
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Kousuke Okimura
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Takashi Yoshimura
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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Cortesi F, Mitchell LJ, Tettamanti V, Fogg LG, de Busserolles F, Cheney KL, Marshall NJ. Visual system diversity in coral reef fishes. Semin Cell Dev Biol 2020; 106:31-42. [PMID: 32593517 DOI: 10.1016/j.semcdb.2020.06.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 02/06/2023]
Abstract
Coral reefs are one of the most species rich and colourful habitats on earth and for many coral reef teleosts, vision is central to their survival and reproduction. The diversity of reef fish visual systems arises from variations in ocular and retinal anatomy, neural processing and, perhaps most easily revealed by, the peak spectral absorbance of visual pigments. This review examines the interplay between retinal morphology and light environment across a number of reef fish species, but mainly focusses on visual adaptations at the molecular level (i.e. visual pigment structure). Generally, visual pigments tend to match the overall light environment or micro-habitat, with fish inhabiting greener, inshore waters possessing longer wavelength-shifted visual pigments than open water blue-shifted species. In marine fishes, particularly those that live on the reef, most species have between two (likely dichromatic) to four (possible tetrachromatic) cone spectral sensitivities and a single rod for crepuscular vision; however, most are trichromatic with three spectral sensitivities. In addition to variation in spectral sensitivity number, spectral placement of the absorbance maximum (λmax) also has a surprising degree of variability. Variation in ocular and retinal anatomy is also observed at several levels in reef fishes but is best represented by differences in arrangement, density and distribution of neural cell types across the retina (i.e. retinal topography). Here, we focus on the seven reef fish families most comprehensively studied to date to examine and compare how behaviour, environment, activity period, ontogeny and phylogeny might interact to generate the exceptional diversity in visual system design that we observe.
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Affiliation(s)
- Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia.
| | - Laurie J Mitchell
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia; School of Biological Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Valerio Tettamanti
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Lily G Fogg
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Fanny de Busserolles
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Karen L Cheney
- School of Biological Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - N Justin Marshall
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia
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Li Y, Zhang J. The Effect of Acute Erythromycin Exposure on the Swimming Ability of Zebrafish ( Danio rerio) and Medaka ( Oryzias latipes). INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17103389. [PMID: 32414023 PMCID: PMC7277679 DOI: 10.3390/ijerph17103389] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/15/2020] [Accepted: 04/17/2020] [Indexed: 11/20/2022]
Abstract
Erythromycin is a widely used antibiotic, and erythromycin contamination may pose a threat to aquatic organisms. However, little is known about the adverse effects of erythromycin on swimming ability. To quantify erythromycin-induced damage to fish swimming ability, Oryzias latipes and Danio rerio were acutely exposed to erythromycin. The swimming ability of the experimental fish was measured after exposure to varying doses of erythromycin (2 µg/L, 20 µg/L, 200 µg/L, and 2 mg/L) for 96 h. Burst speed (Uburst) and critical swimming speed (Ucrit) of experimental fish significantly decreased. In addition, gene expression analysis of O. latipes and D. rerio under erythromycin treatment (2 mg/L) showed that the expression of genes related to energy metabolism in the muscle was significantly reduced in both species of fish. However, the gene expression pattern in the head of the two species was differentially impacted; D. rerio showed endocrine disruption, while phototransduction was impacted in O. latipes. The results of our study may be used as a reference to control erythromycin pollution in natural rivers.
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Seasonal changes in NRF2 antioxidant pathway regulates winter depression-like behavior. Proc Natl Acad Sci U S A 2020; 117:9594-9603. [PMID: 32277035 PMCID: PMC7196813 DOI: 10.1073/pnas.2000278117] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
At high latitudes, about 10% of the population suffers from depression in winter. Although it has become a serious public health issue, its underlying mechanism remains unknown. Interestingly, animals also show depression-like behavior in winter, and small teleosts have emerged as powerful models for the study of complex brain disorders. Here, we show that medaka exhibit decreased sociability and increased anxiety-like behavior under winter-like conditions. Using metabolomic and transcriptomic analyses, we found changes in multiple signaling pathways involved in depression, including the NRF2 antioxidant pathway. Chemical genomics and targeted mutation of the NRF2 gene revealed that seasonal changes in the NRF2 pathway regulate winter depression-like behavior. This study provides insights into the understanding and treatment of seasonally regulated affective disorders. Seasonal changes in the environment lead to depression-like behaviors in humans and animals. The underlying mechanisms, however, are unknown. We observed decreased sociability and increased anxiety-like behavior in medaka fish exposed to winter-like conditions. Whole brain metabolomic analysis revealed seasonal changes in 68 metabolites, including neurotransmitters and antioxidants associated with depression. Transcriptome analysis identified 3,306 differentially expressed transcripts, including inflammatory markers, melanopsins, and circadian clock genes. Further analyses revealed seasonal changes in multiple signaling pathways implicated in depression, including the nuclear factor erythroid-derived 2-like 2 (NRF2) antioxidant pathway. A broad-spectrum chemical screen revealed that celastrol (a traditional Chinese medicine) uniquely reversed winter behavior. NRF2 is a celastrol target expressed in the habenula (HB), known to play a critical role in the pathophysiology of depression. Another NRF2 chemical activator phenocopied these effects, and an NRF2 mutant showed decreased sociability. Our study provides important insights into winter depression and offers potential therapeutic targets involving NRF2.
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26
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A photoperiodic time measurement served by the biphasic expression of Cryptochrome1ab in the zebrafish eye. Sci Rep 2020; 10:5056. [PMID: 32193419 PMCID: PMC7081220 DOI: 10.1038/s41598-020-61877-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 02/28/2020] [Indexed: 11/08/2022] Open
Abstract
The zebrafish (Danio rerio) is a model species that is used to study the circadian clock. It possesses light-entrainable circadian clocks in both central and peripheral tissues, and its core circadian factor cryptochromes (CRYs) have diverged significantly during evolution. In order to elucidate the functional diversity and involvement of CRYs in photoperiodic mechanisms, we investigated the daily expression profiles of six Cry transcripts in central (brain and eye) and peripheral (fin, skin and muscle) tissues. The zCry genes exhibited gene-specific diurnal conserved variations, and were divided into morning and evening groups. Notably, zCry1ab exhibited biphasic expression profiles in the eye, with peaks in the morning and evening. Comparing ocular zCry1ab expression in different photoperiods (18L:6D, 14L:10D, 10L:14D and 6L:18D) revealed that zCry1ab expression duration changed depending on the photoperiod: it increased at midnight and peaked before lights off. zCry1ab expression in constant light or dark after entrainment under long- or short-day conditions suggested that the evening clock and photic input pathway are involved in photoperiod-dependent zCry1ab expression. Laser microdissection followed by qRT-PCR analysis showed that the evening peak of zCry1ab was likely ascribed to visual photoreceptors. These results suggest the presence of an eye-specific photoperiodic time measurement served by zCry1ab.
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Häfker NS, Tessmar-Raible K. Rhythms of behavior: are the times changin’? Curr Opin Neurobiol 2020; 60:55-66. [DOI: 10.1016/j.conb.2019.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023]
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A detailed investigation of the visual system and visual ecology of the Barrier Reef anemonefish, Amphiprion akindynos. Sci Rep 2019; 9:16459. [PMID: 31712572 PMCID: PMC6848076 DOI: 10.1038/s41598-019-52297-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/13/2019] [Indexed: 11/24/2022] Open
Abstract
Vision plays a major role in the life of most teleosts, and is assumingly well adapted to each species ecology and behaviour. Using a multidisciplinary approach, we scrutinised several aspects of the visual system and ecology of the Great Barrier Reef anemonefish, Amphiprion akindynos, including its orange with white patterning, retinal anatomy and molecular biology, its symbiosis with anemones and sequential hermaphroditism. Amphiprion akindynos possesses spectrally distinct visual pigments and opsins: one rod opsin, RH1 (498 nm), and five cone opsins, SWS1 (370 nm), SWS2B (408 nm), RH2B (498 nm), RH2A (520 nm), and LWS (554 nm). Cones were arranged in a regular mosaic with each single cone surrounded by four double cones. Double cones mainly expressed RH2B (53%) in one member and RH2A (46%) in the other, matching the prevailing light. Single cones expressed SWS1 (89%), which may serve to detect zooplankton, conspecifics and the host anemone. Moreover, a segregated small fraction of single cones coexpressed SWS1 with SWS2B (11%). This novel visual specialisation falls within the region of highest acuity and is suggested to increase the chromatic contrast of Amphiprion akindynos colour patterns, which might improve detection of conspecifics.
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Nakane Y, Shinomiya A, Ota W, Ikegami K, Shimmura T, Higashi SI, Kamei Y, Yoshimura T. Action spectrum for photoperiodic control of thyroid-stimulating hormone in Japanese quail (Coturnix japonica). PLoS One 2019; 14:e0222106. [PMID: 31509560 PMCID: PMC6738599 DOI: 10.1371/journal.pone.0222106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 08/21/2019] [Indexed: 11/18/2022] Open
Abstract
At higher latitudes, vertebrates exhibit a seasonal cycle of reproduction in response to changes in day-length, referred to as photoperiodism. Extended day-length induces thyroid-stimulating hormone in the pars tuberalis of the pituitary gland. This hormone triggers the local activation of thyroid hormone in the mediobasal hypothalamus and eventually induces gonadal development. In avian species, light information associated with day-length is detected through photoreceptors located in deep-brain regions. Within these regions, the expressions of multiple photoreceptive molecules, opsins, have been observed. However, even though the Japanese quail is an excellent model for photoperiodism because of its robust and significant seasonal responses in reproduction, a comprehensive understanding of photoreceptors in the quail brain remains undeveloped. In this study, we initially analyzed an action spectrum using photoperiodically induced expression of the beta subunit genes of thyroid-stimulating hormone in quail. Among seven wavelengths examined, we detected maximum sensitivity of the action spectrum at 500 nm. The low value for goodness of fit in the alignment with a template of retinal1-based photopigment, assuming a spectrum associated with a single opsin, proposed the possible involvement of multiple opsins rather than a single opsin. Analysis of gene expression in the septal region and hypothalamus, regions hypothesized to be photosensitive in quail, revealed mRNA expression of a mammal-like melanopsin in the infundibular nucleus within the mediobasal hypothalamus. However, no significant diurnal changes were observed for genes in the infundibular nucleus. Xenopus-like melanopsin, a further isoform of melanopsin in birds, was detected in neither the septal region nor the infundibular nucleus. These results suggest that the mammal-like melanopsin expressed in the infundibular nucleus within the mediobasal hypothalamus could be candidate deep-brain photoreceptive molecule in Japanese quail. Investigation of the functional involvement of mammal-like melanopsin-expressing cells in photoperiodism will be required for further conclusions.
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Affiliation(s)
- Yusuke Nakane
- Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- * E-mail: , (YN); , (TY)
| | - Ai Shinomiya
- Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Japan
| | - Wataru Ota
- Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Keisuke Ikegami
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- Department of Physiology, School of Medicine, Aichi Medical University, Nagakute, Japan
| | - Tsuyoshi Shimmura
- Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Japan
- Department of Agriculture, Tokyo University of Agriculture and Technology, Fuchu Japan
| | - Sho-Ichi Higashi
- Spectrography and Bioimaging Facility, National Institute for Basic Biology, Okazaki, Japan
| | - Yasuhiro Kamei
- Spectrography and Bioimaging Facility, National Institute for Basic Biology, Okazaki, Japan
| | - Takashi Yoshimura
- Institute of Transformative Bio-molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Japan
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
- * E-mail: , (YN); , (TY)
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Xu J, Jiang Y, Zhao Z, Zhang H, Peng W, Feng J, Dong C, Chen B, Tai R, Xu P. Patterns of Geographical and Potential Adaptive Divergence in the Genome of the Common Carp ( Cyprinus carpio). Front Genet 2019; 10:660. [PMID: 31354795 PMCID: PMC6640160 DOI: 10.3389/fgene.2019.00660] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 06/24/2019] [Indexed: 02/04/2023] Open
Abstract
The common carp, Cyprinus carpio, is a cyprinid fish species cultured in Europe and Asia. It accounts for >70% of freshwater aquaculture production worldwide. We conducted a population genomics analysis on C. carpio using high-throughput SNP genotyping of 2,198 individuals from 14 populations worldwide to determine the genetic architecture of common carp populations and the genetic bases for environmental adaptation. Structure analyses including phylogeny and principal component analysis were also conducted, showing distinct geographical patterns in European and Asian populations. The linkage disequilibrium block average lengths of the 14 populations ranged from 3.94 kb to 36.67 kb. Genes within selective sweep regions were identified by genome scanning among the different populations, including gdf6a, bmpr1b, and opsin5. Gene Ontology and KEGG enrichment analyses revealed potential trait-related loci and genes associated with body shape, scaling patterns, and skin color. This population genomics analysis may provide valuable clues for future genome-assisted breeding of C. carpio.
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Affiliation(s)
- Jian Xu
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, CAFS Key Laboratory of Aquatic Genomics and Beijing Key Laboratory of Fishery Biotechnology, Chinese Academy of Fishery Sciences, Beijing, China
| | - Yanliang Jiang
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, CAFS Key Laboratory of Aquatic Genomics and Beijing Key Laboratory of Fishery Biotechnology, Chinese Academy of Fishery Sciences, Beijing, China
| | - Zixia Zhao
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, CAFS Key Laboratory of Aquatic Genomics and Beijing Key Laboratory of Fishery Biotechnology, Chinese Academy of Fishery Sciences, Beijing, China
| | - Hanyuan Zhang
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, CAFS Key Laboratory of Aquatic Genomics and Beijing Key Laboratory of Fishery Biotechnology, Chinese Academy of Fishery Sciences, Beijing, China
| | - Wenzhu Peng
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Jianxin Feng
- Henan Academy of Fishery Science, Zhengzhou, China
| | - Chuanju Dong
- College of Fishery, Henan Normal University, Xinxiang, China
| | - Baohua Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Ruyu Tai
- Key Laboratory of Aquatic Genomics, Ministry of Agriculture, CAFS Key Laboratory of Aquatic Genomics and Beijing Key Laboratory of Fishery Biotechnology, Chinese Academy of Fishery Sciences, Beijing, China
| | - Peng Xu
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.,Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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Seasonal regulation of the lncRNA LDAIR modulates self-protective behaviours during the breeding season. Nat Ecol Evol 2019; 3:845-852. [PMID: 30962562 DOI: 10.1038/s41559-019-0866-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 03/07/2019] [Indexed: 02/03/2023]
Abstract
To cope with seasonal environmental changes, animals adapt their physiology and behaviour in response to photoperiod. However, the molecular mechanisms underlying these adaptive changes are not completely understood. Here, using genome-wide expression analysis, we show that an uncharacterized long noncoding RNA (lncRNA), LDAIR, is strongly regulated by photoperiod in Japanese medaka fish (Oryzias latipes). Numerous transcripts and signalling pathways are activated during the transition from short- to long-day conditions; however, LDAIR is one of the first genes to be induced and its expression shows a robust daily rhythm under long-day conditions. Transcriptome analysis of LDAIR knockout fish reveals that the LDAIR locus regulates a gene neighbourhood, including corticotropin releasing hormone receptor 2, which is involved in the stress response. Behavioural analysis of LDAIR knockout fish demonstrates that LDAIR affects self-protective behaviours under long-day conditions. Therefore, we propose that photoperiodic regulation of corticotropin releasing hormone receptor 2 by LDAIR modulates adaptive behaviours to seasonal environmental changes.
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Green light irradiation during sex differentiation induces female-to-male sex reversal in the medaka Oryzias latipes. Sci Rep 2019; 9:2383. [PMID: 30787482 PMCID: PMC6382872 DOI: 10.1038/s41598-019-38908-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/11/2019] [Indexed: 01/05/2023] Open
Abstract
This study investigated whether irradiation of a specific light wavelength could affect the sex differentiation of fish. We first found that the photoreceptor genes responsible for receiving red, green, and ultraviolet light were expressed in the eyes of medaka during the sex differentiation period. Second, we revealed that testes developed in 15.9% of genotypic females reared under green light irradiation. These female-to-male sex-reversed fish (i.e. neo-males) showed male-specific secondary sexual characteristics and produced motile sperm. Finally, progeny tests using the sperm of neo-males (XX) and eggs of normal females (XX) revealed that all F1 offspring were female, indicating for the first time in animals that irradiation with light of a specific wavelength can trigger sex reversal.
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Abstract
Organisms use changes in photoperiod for seasonal reproduction to maximize the survival of their offspring. Birds have sophisticated seasonal mechanisms and are therefore excellent models for studying these phenomena. Birds perceive light via deep-brain photoreceptors and long day–induced thyroid-stimulating hormone (TSH, thyrotropin) in the pars tuberalis of the pituitary gland (PT), which cause local thyroid hormone activation within the mediobasal hypothalamus. The local bioactive thyroid hormone controls seasonal gonadotropin-releasing hormone secretion and subsequent gonadotropin secretion. In mammals, the eyes are believed to be the only photoreceptor organ, and nocturnal melatonin secretion triggers an endocrine signal that communicates information about the photoperiod to the PT to regulate TSH. In contrast, in Salmonidae fish the input pathway to the neuroendocrine output pathway appears to be localized in the saccus vasculosus. Thus, comparative analysis is an effective way to uncover the universality and diversity of fundamental traits in various organisms.
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Affiliation(s)
- Yusuke Nakane
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Takashi Yoshimura
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Laboratory of Animal Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, Myodaiji, Okazaki 444-8585, Japan
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Medaka Population Genome Structure and Demographic History Described via Genotyping-by-Sequencing. G3-GENES GENOMES GENETICS 2019; 9:217-228. [PMID: 30482798 PMCID: PMC6325896 DOI: 10.1534/g3.118.200779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Medaka is a model organism in medicine, genetics, developmental biology and population genetics. Lab stocks composed of more than 100 local wild populations are available for research in these fields. Thus, medaka represents a potentially excellent bioresource for screening disease-risk- and adaptation-related genes in genome-wide association studies. Although the genetic population structure should be known before performing such an analysis, a comprehensive study on the genome-wide diversity of wild medaka populations has not been performed. Here, we performed genotyping-by-sequencing (GBS) for 81 and 12 medakas captured from a bioresource and the wild, respectively. Based on the GBS data, we evaluated the genetic population structure and estimated the demographic parameters using an approximate Bayesian computation (ABC) framework. The genome-wide data confirmed that there were substantial differences between local populations and supported our previously proposed hypothesis on medaka dispersal based on mitochondrial genome (mtDNA) data. A new finding was that a local group that was thought to be a hybrid between the northern and the southern Japanese groups was actually an origin of the northern Japanese group. Thus, this paper presents the first population-genomic study of medaka and reveals its population structure and history based on chromosomal genetic diversity.
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GUH YJ, TAMAI TK, YOSHIMURA T. The underlying mechanisms of vertebrate seasonal reproduction. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2019; 95:343-357. [PMID: 31406058 PMCID: PMC6766453 DOI: 10.2183/pjab.95.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 04/24/2019] [Indexed: 06/01/2023]
Abstract
Animals make use of changes in photoperiod to adapt their physiology to the forthcoming breeding season. Comparative studies have contributed to our understanding of the mechanisms of seasonal reproduction in vertebrates. Birds are excellent models for studying these phenomena because of their rapid and dramatic responses to changes in photoperiod. Deep brain photoreceptors in birds perceive and transmit light information to the pars tuberalis (PT) in the pituitary gland, where the thyroid-stimulating hormone (TSH) is produced. This PT-TSH locally increases the level of the bioactive thyroid hormone T3 via the induction of type 2 deiodinase production in the mediobasal hypothalamus, and an increased T3 level, in turn, controls seasonal gonadotropin-releasing hormone secretion. In mammals, the eyes are the only photoreceptive structure, and nocturnal melatonin secretion encodes day-length information and regulates the PT-TSH signaling cascade. In Salmonidae, the saccus vasculosus plays a pivotal role as a photoperiodic sensor. Together, these studies have uncovered the universality and diversity of fundamental traits in vertebrates.
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Affiliation(s)
- Ying-Jey GUH
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Aichi, Japan
| | - Takako K TAMAI
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi, Japan
| | - Takashi YOSHIMURA
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi, Japan
- Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Aichi, Japan
- Laboratory of Integrative Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
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Aromatase expression and function in the brain and behavior: A comparison across communication systems in teleosts. J Chem Neuroanat 2018; 94:139-153. [DOI: 10.1016/j.jchemneu.2018.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/09/2018] [Accepted: 10/14/2018] [Indexed: 11/18/2022]
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West AC, Wood SH. Seasonal physiology: making the future a thing of the past. CURRENT OPINION IN PHYSIOLOGY 2018. [DOI: 10.1016/j.cophys.2018.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Sandkam B, Dalton B, Breden F, Carleton K. Reviewing guppy color vision: integrating the molecular and physiological variation in visual tuning of a classic system for sensory drive. Curr Zool 2018; 64:535-545. [PMID: 30108634 PMCID: PMC6084590 DOI: 10.1093/cz/zoy047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/02/2018] [Indexed: 12/11/2022] Open
Abstract
Sensory drive predicts coevolution of mate choice signals with the sensory systems detecting those signals. Guppies are a classic model for sensory drive as mate preferences based on coloration differ across individuals and populations. A large body of work has identified variation in color vision, yet we lack a direct tie between how such variation in color vision influences variation in color preference. Here we bring together studies that have investigated guppy vision over the past 40 years to: (1) highlight our current understanding of where variation occurs in the guppy color vision pathway and (2) suggest future avenues of research into sources of visual system variation that could influence guppy color preference. This will allow researchers to design careful studies that couple measures of color preference with measures of visual system variation from the same individual or population. Such studies will finally provide important answers as to what sets the direction and speed of mate preference evolution via sensory drive.
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Affiliation(s)
- Benjamin Sandkam
- Department of Biology, University of Maryland, College Park, College Park, MD, USA
| | - Brian Dalton
- Department of Biology, University of Maryland, College Park, College Park, MD, USA
| | - Felix Breden
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Karen Carleton
- Department of Biology, University of Maryland, College Park, College Park, MD, USA
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Hiyama G, Mizushima S, Matsuzaki M, Tobari Y, Choi JH, Ono T, Tsudzuki M, Makino S, Tamiya G, Tsukahara N, Sugita S, Sasanami T. Female Japanese quail visually differentiate testosterone-dependent male attractiveness for mating preferences. Sci Rep 2018; 8:10012. [PMID: 29968815 PMCID: PMC6030125 DOI: 10.1038/s41598-018-28368-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 06/21/2018] [Indexed: 12/27/2022] Open
Abstract
Biased mating due to female preferences towards certain traits in males is a major mechanism driving sexual selection, and may constitute an important evolutionary force in organisms with sexual reproduction. In birds, although the role of male ornamentation, plumage coloration, genetic dissimilarity, and body size have on mate selection by females have been examined extensively, few studies have clarified exactly how these characteristics affect female mate preferences. Here, we show that testosterone (T)-dependent male attractiveness enhances female preference for males of a polygamous species, the Japanese quail. A significant positive correlation between female mating preference and circulating T in the male was observed. The cheek feathers of attractive males contained higher levels of melanin and were more brightly colored. The ability of females to distinguish attractive males from other males was negated when the light source was covered with a sharp cut filter (cutoff; < 640 nm). When females were maintained under short-day conditions, the expression of retinal red-sensitive opsin decreased dramatically and they became insensitive to male attractiveness. Our results showed that female preference in quail is strongly stimulated by male feather coloration in a T-dependent manner and that female birds develop a keen sense for this coloration due to upregulation of retinal red-sensitive opsin under breeding conditions.
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Affiliation(s)
- Gen Hiyama
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
- Medical-Industrial Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima, 960-8031, Japan
| | - Shusei Mizushima
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido, 060-0810, Japan
| | - Mei Matsuzaki
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Yasuko Tobari
- Laboratory of Animal Genetics and Breeding, School of Veterinary Medicine, Azabu University, Fuchinobe 1-17-71, Sagamihara, 252-5201, Japan
| | - Jae-Hoon Choi
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan
| | - Takashi Ono
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Masaoki Tsudzuki
- Laboratory of Animal Breeding and Genetics, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, 739-8528, Japan
| | - Satoshi Makino
- Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Gen Tamiya
- Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
- RIKEN Center for Advanced Intelligence Project, 1-4-1 Nihonbashi, Chuo-ku, Tokyo, 103-0027, Japan
| | - Naoki Tsukahara
- CrowLab Inc., Utsunomiya-ventures #3, Tochigi Prefecture Industrial Center, 3-1-4, Chuo, Utsunomiya-shi, Tochigi, 320-0806, Japan
| | - Shoei Sugita
- Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi, 321-8505, Japan
| | - Tomohiro Sasanami
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka, Shizuoka, 422-8529, Japan.
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Shibai A, Arimoto T, Yoshinaga T, Tsuchizawa Y, Khureltulga D, Brown ZP, Kakizuka T, Hosoda K. Attraction of posture and motion-trajectory elements of conspecific biological motion in medaka fish. Sci Rep 2018; 8:8589. [PMID: 29872061 PMCID: PMC5988670 DOI: 10.1038/s41598-018-26186-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/08/2018] [Indexed: 01/30/2023] Open
Abstract
Visual recognition of conspecifics is necessary for a wide range of social behaviours in many animals. Medaka (Japanese rice fish), a commonly used model organism, are known to be attracted by the biological motion of conspecifics. However, biological motion is a composite of both body-shape motion and entire-field motion trajectory (i.e., posture or motion-trajectory elements, respectively), and it has not been revealed which element mediates the attractiveness. Here, we show that either posture or motion-trajectory elements alone can attract medaka. We decomposed biological motion of the medaka into the two elements and synthesized visual stimuli that contain both, either, or none of the two elements. We found that medaka were attracted by visual stimuli that contain at least one of the two elements. In the context of other known static visual information regarding the medaka, the potential multiplicity of information regarding conspecific recognition has further accumulated. Our strategy of decomposing biological motion into these partial elements is applicable to other animals, and further studies using this technique will enhance the basic understanding of visual recognition of conspecifics.
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Affiliation(s)
- Atsushi Shibai
- Graduate School of Information Science and Technology, Osaka University, Yamadaoka 1-5, Suita, Osaka, 565-0871, Japan.
| | - Tsunehiro Arimoto
- Graduate School of Engineering Science, Osaka University, Machikaneyama-cho 1-3, Toyonaka, Osaka, 560-8531, Japan
| | - Tsukasa Yoshinaga
- Graduate School of Engineering Science, Osaka University, Machikaneyama-cho 1-3, Toyonaka, Osaka, 560-8531, Japan
| | - Yuta Tsuchizawa
- Graduate School of Frontier Bioscience, Osaka University, Yamadaoka 1-3, Suita, Osaka, 565-0871, Japan
| | - Dashdavaa Khureltulga
- Graduate School of Information Science and Technology, Osaka University, Yamadaoka 1-5, Suita, Osaka, 565-0871, Japan
| | - Zuben P Brown
- Graduate School of Frontier Bioscience, Osaka University, Yamadaoka 1-3, Suita, Osaka, 565-0871, Japan
| | - Taishi Kakizuka
- Graduate School of Frontier Bioscience, Osaka University, Yamadaoka 1-3, Suita, Osaka, 565-0871, Japan
| | - Kazufumi Hosoda
- Graduate School of Information Science and Technology, Osaka University, Yamadaoka 1-5, Suita, Osaka, 565-0871, Japan.
- Institute for Academic Initiatives, Osaka University, Yamadaoka 1-5, Suita, Osaka, 565-0871, Japan.
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Shimmura T, Nakayama T, Shinomiya A, Yoshimura T. Seasonal changes in color perception. Gen Comp Endocrinol 2018; 260:171-174. [PMID: 29288672 DOI: 10.1016/j.ygcen.2017.12.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/26/2017] [Indexed: 01/25/2023]
Abstract
In temperate zones, organisms experience dynamic fluctuations in environment including changes in color. To cope with such seasonal changes in the environment, organisms adapt their physiology and behavior. Although color perception has been believed to be fixed throughout life, there is increasing evidence for the alteration in opsin gene expression induced by environmental stimuli in a number of animals. Very recently, dynamic seasonal plasticity in color perception has been reported in the seasonally breeding medaka fish. Interestingly, seasonal changes in human color perception have also been reported. Therefore, plasticity of color perception, induced by environmental stimuli, might be a common phenomenon across various species.
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Affiliation(s)
- Tsuyoshi Shimmura
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi 444-8585, Japan; Department of Basic Biology, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Tomoya Nakayama
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi 444-8585, Japan; Laboratory of Animal Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Ai Shinomiya
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi 444-8585, Japan; Department of Basic Biology, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Takashi Yoshimura
- Division of Seasonal Biology, National Institute for Basic Biology, National Institutes of Natural Sciences, Okazaki, Aichi 444-8585, Japan; Laboratory of Animal Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi 464-8601, Japan; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Aichi 464-8601, Japan.
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Loss of red opsin genes relaxes sexual isolation between skin-colour variants of medaka. Behav Processes 2018; 150:25-28. [PMID: 29447852 DOI: 10.1016/j.beproc.2018.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 12/19/2022]
Abstract
Colour vision is often essential for animals. Fine discrimination of colours enhances the ability of animals to find food, predators, or mating partners. Using two colour variants of medaka (Oryzias latipes), which mate assortatively depending on visual cues (pale grey versus dark orange), we recently established red colour-blind strains by knocking out the red opsin (long-wavelength-sensitive) genes and elucidated that the fish were indeed insensitive to red light. In the present study, we investigated the mate choice of these red-blind fish. The colour variants with normal colour vision strongly preferred to mate with their own strain. The red-blind ones also preferred their own strain; i.e. they still mated assortatively. However, their preference was significantly weaker than that of fish with normal colour vision. In other words, the red-blind fish showed increased sexual interest in the other colour variant. These results indicated that reduced sensitivity to red light also reduced their ability to discriminate colours. This empirical evidence directly demonstrates that a change in cone-opsin repertoire changes mating decision behaviours, which would affect gene flow and speciation processes between conspecific colour variants in nature, as suggested in other studies.
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Schweikert LE, Grace MS. Altered environmental light drives retinal change in the Atlantic Tarpon (Megalops atlanticus) over timescales relevant to marine environmental disturbance. BMC Ecol 2018; 18:1. [PMID: 29347979 PMCID: PMC5774114 DOI: 10.1186/s12898-018-0157-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 01/09/2018] [Indexed: 12/13/2022] Open
Abstract
Background For many fish species, retinal function changes between life history stages as part of an encoded developmental program. Retinal change is also known to exhibit plasticity because retinal form and function can be influenced by light exposure over the course of development. Aside from studies of gene expression, it remains largely unknown whether retinal plasticity can provide functional responses to short-term changes in environmental light quality. The aim of this study was to determine whether the structure and function of the fish retina can change in response to altered light intensity and spectrum—not over the course of a developmental regime, but over shorter time periods relevant to marine habitat disturbance. Results The effects of light environment on sensitivity of the retina, as well as on cone photoreceptor distribution were examined in the Atlantic tarpon (Megalops atlanticus) on 2- and 4-month timescales. In a spectral experiment, juvenile M. atlanticus were placed in either ‘red’ or ‘blue’ light conditions (with near identical irradiance), and in an intensity experiment, juveniles were placed in either ‘bright’ or ‘dim’ light conditions (with near identical spectra). Analysis of the retina by electroretinography and anti-opsin immunofluorescence revealed that relative to fish held in the blue condition, those in the red condition exhibited longer-wavelength peak sensitivity and greater abundance of long-wavelength-sensitive (LWS) cone photoreceptors over time. Following pre-test dark adaption of the retina, fish held in the dim light required less irradiance to produce a standard retinal response than fish held in bright light, developing a greater sensitivity to white light over time. Conclusions The results show that structure and function of the M. atlanticus retina can rapidly adjust to changes in environmental light within a given developmental stage, and that such changes are dependent on light quality and the length of exposure. These findings suggest that the fish retina may be resilient to disturbances in environmental light, using retinal plasticity to compensate for changes in light quality over short timescales. Electronic supplementary material The online version of this article (10.1186/s12898-018-0157-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lorian E Schweikert
- Department of Biological Sciences, Florida Institute of Technology, 150 W. University Boulevard, Melbourne, FL, 32901, USA.,Department of Biology, Duke University, 130 Science Dr. Durham, Durham, NC, 27583, USA
| | - Michael S Grace
- Department of Biological Sciences, Florida Institute of Technology, 150 W. University Boulevard, Melbourne, FL, 32901, USA.
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Luehrmann M, Stieb SM, Carleton KL, Pietzker A, Cheney KL, Marshall NJ. Short term colour vision plasticity on the reef: Changes in opsin expression under varying light conditions differ between ecologically distinct reef fish species. J Exp Biol 2018; 221:jeb.175281. [DOI: 10.1242/jeb.175281] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 08/21/2018] [Indexed: 12/17/2022]
Abstract
Vision mediates important behavioural tasks such as mate choice, escape from predators and foraging. In fish, photoreceptors are generally tuned to specific visual tasks and/or to their light environment according to depth or water colour to ensure optimal performance. Evolutionary mechanisms acting on opsin genes, the protein component of the photopigment, can influence the spectral sensitivity of photoreceptors. Opsin genes are known to respond to environmental conditions on a number of time scales including shorter time frames due to seasonal variation, or through longer term evolutionary tuning. There is also evidence for ‘on-the-fly’ adaptations in adult fish in response to rapidly changing environmental conditions, however, results are contradictory. Here we investigated the ability of three reef fish species that belong to two ecologically distinct families, Yellow-striped cardinalfish, Ostorhinchus cyanosoma, Ambon damselfish, Pomacentrus amboinensis, and Lemon damselfish, Pomacentrus moluccensis, to alter opsin-gene expression as an adaptation to short-term (weeks to months) changes of environmental light conditions, and attempted to characterize the underlying expression regulation principles. We report the ability for all species to alter opsin gene expression within months and even a few weeks, suggesting that opsin expression in adult reef fish is not static. Furthermore, we found that opsin expression changes in single cones generally occurred more rapidly than in double cones, and identified different responses of RH2 opsin gene expression between the ecologically distinct reef fish families. Quantum catch correlation analysis suggested different regulation mechanisms for opsin expression dependent on gene class.
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Affiliation(s)
- Martin Luehrmann
- Queensland Brain Institute, The University of Queensland, Sensory Neurobiology Group, 4072, Brisbane, QLD, Australia
| | - Sara M. Stieb
- Queensland Brain Institute, The University of Queensland, Sensory Neurobiology Group, 4072, Brisbane, QLD, Australia
| | - Karen L. Carleton
- Department of Biology, The University of Maryland, College Park, MD, 20742, USA
| | - Alisa Pietzker
- Queensland Brain Institute, The University of Queensland, Sensory Neurobiology Group, 4072, Brisbane, QLD, Australia
| | - Karen L. Cheney
- Queensland Brain Institute, The University of Queensland, Sensory Neurobiology Group, 4072, Brisbane, QLD, Australia
- School of Biological Sciences, The University of Queensland, 4072, Brisbane, QLD, Australia
| | - N. Justin Marshall
- Queensland Brain Institute, The University of Queensland, Sensory Neurobiology Group, 4072, Brisbane, QLD, Australia
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