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Zhang F, Song W, Yang R, Jin C, Xie Y, Shen Y, Gao X, Sun H, Nie T, Yue X, Song Z, Qi J, Zhang Q, He Y. Semen promotes oocyte development in Sebastesschlegelii elucidating ovarian development dynamics in live-bearing fish. iScience 2024; 27:109193. [PMID: 38433916 PMCID: PMC10907845 DOI: 10.1016/j.isci.2024.109193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/17/2023] [Accepted: 02/07/2024] [Indexed: 03/05/2024] Open
Abstract
In some vertebrates and invertebrates, semen release factors affecting female physiology and behavior. Here, we report that semen delivered to females is potentially beneficial for promoting oocyte development in a viviparous teleost, Sebastes schlegelii. 88% of mated ovaries develop normally and give birth to larval fish, whereas 61% of non-mated ovaries are arrested in the previtellogenic stage. Semen's significant role (p < 0.0001) in promoting oocyte development may involve remodeling follicular cells and regulating the expression of the extracellular matrix, which facilitates cell communication. Furthermore, the ovarian response to semen may influence the brain, affecting hormone release, follicular cell development and steroid production, and crucial for oocyte growth. This mechanism, which could potentially delay maternal investment in offspring until male genetic input occurs to avoid energy wastage, has not been previously described in teleosts. These findings enhance our understanding of ovarian development in viviparous fish, with broader implications for reproductive biology.
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Affiliation(s)
- Fengyan Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Weihao Song
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Ruiyan Yang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Chaofan Jin
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Yuheng Xie
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Yiyang Shen
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Xiangyu Gao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Hao Sun
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Tianci Nie
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Xinlu Yue
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Zongcheng Song
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Jie Qi
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
| | - Quanqi Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
- Weihai Shenghang Ocean Science and Technology Co., Ltd, Weihai, Shandong 264200, China
| | - Yan He
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences/Sanya Oceanographic Institution, Ocean University of China, Qingdao 266000/Sanya 572000, Shandong/Hainan, China
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2
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Qian Q, Niwa R. Endocrine Regulation of Aging in the Fruit Fly Drosophila melanogaster. Zoolog Sci 2024; 41:4-13. [PMID: 38587512 DOI: 10.2108/zs230056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/16/2023] [Indexed: 04/09/2024]
Abstract
The past few decades have witnessed increasing research clarifying the role of endocrine signaling in the regulation of aging in both vertebrates and invertebrates. Studies using the model organism fruit fly Drosophila melanogaster have largely advanced our understanding of evolutionarily conserved mechanisms in the endocrinology of aging and anti-aging. Mutations in single genes involved in endocrine signaling modify lifespan, as do alterations of endocrine signaling in a tissue- or cell-specific manner, highlighting a central role of endocrine signaling in coordinating the crosstalk between tissues and cells to determine the pace of aging. Here, we review the current landscape of research in D. melanogaster that offers valuable insights into the endocrine-governed mechanisms which influence lifespan and age-related physiology.
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Affiliation(s)
- Qingyin Qian
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Ryusuke Niwa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan,
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Ahmad S, Jamil M, Jaworski CC, Wu Y, Palma-Onetto V, Lyu B, Luo Y. Knockdown of the ecdysone receptor disrupts development and causes mortality in the melon fly, Zeugodacus cucurbitae. INSECT MOLECULAR BIOLOGY 2023; 32:738-747. [PMID: 37646607 DOI: 10.1111/imb.12867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
Cucurbits are important economic plants that are attacked by numerous pests, among which the melon fly Zeugodacus cucurbitae is extremely problematic. New sustainable pest control strategies are necessary to replace chemical insecticides that are harmful to the environment, human health and nontarget species. The RNA interference (RNAi) technology is one of the most promising tools due to high efficiency and species specificity. We developed an RNAi strategy targeting the ecdysone receptor (ECR) of Z. cucurbitae, which plays an important role in moulting and reproduction. We identified, described and isolated the ECR gene of Z. cucurbitae and measured its expression pattern across developmental stages and tissues. ZcECR knockdown via dsZcECR ingestion caused a significant larval mortality and abnormal phenotypes in pupae and adults. About 68% of larvae fed with a dsZcECR-treated diet failed to enter the pupal stage and died. In addition, ZcECR knockdown dramatically reduced pupal weight (by 3.24 mg on average) and fecundity (by about 23%). RNAi targeting the ECR gene is therefore a promising method to control Z. cucurbitae, paving the way for the development of novel sustainable and highly specific control strategies.
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Affiliation(s)
- Shakil Ahmad
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Momana Jamil
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | | | - Yuejie Wu
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Valeria Palma-Onetto
- Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Baoqian Lyu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, China
| | - Yanping Luo
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
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Aprison EZ, Dzitoyeva S, Ruvinsky I. Serotonergic signaling plays a deeply conserved role in improving oocyte quality. Dev Biol 2023; 499:24-30. [PMID: 37121310 DOI: 10.1016/j.ydbio.2023.04.008] [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: 03/23/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/02/2023]
Abstract
Declining germline quality is a major cause of reproductive senescence. Potential remedies could be found by studying regulatory pathways that promote germline quality. Several lines of evidence, including a C. elegans male pheromone ascr#10 that counteracts the effects of germline aging in hermaphrodites, suggest that the nervous system plays an important role in regulating germline quality. Inspired by the fact that serotonin mediates ascr#10 signaling, here we show that serotonin reuptake inhibitors recapitulate the effects of ascr#10 on the germline and promote healthy oocyte aging in C. elegans. Surprisingly, we found that pharmacological increase of serotonin signaling stimulates several developmental processes in D. melanogaster, including improved oocyte quality, although underlying mechanisms appear to be different between worms and flies. Our results reveal a plausibly conserved role for serotonin in maintaining germline quality and identify a class of therapeutic interventions using available compounds that could efficiently forestall reproductive aging.
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Affiliation(s)
- Erin Z Aprison
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, 60208, USA
| | - Svetlana Dzitoyeva
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, 60208, USA
| | - Ilya Ruvinsky
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, 60208, USA.
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Hoshino R, Sano H, Yoshinari Y, Nishimura T, Niwa R. Circulating fructose regulates a germline stem cell increase via gustatory receptor-mediated gut hormone secretion in mated Drosophila. SCIENCE ADVANCES 2023; 9:eadd5551. [PMID: 36827377 PMCID: PMC9956130 DOI: 10.1126/sciadv.add5551] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Oogenesis is influenced by multiple environmental factors. In the fruit fly, Drosophila melanogaster, nutrition and mating have large impacts on an increase in female germline stem cells (GSCs). However, it is unclear whether these two factors affect this GSC increase interdependently. Here, we report that dietary sugars are crucial for the GSC increase after mating. Dietary glucose is required for mating-induced release of neuropeptide F (NPF) from enteroendocrine cells (EECs), followed by NPF-mediated enhancement of GSC niche signaling. Unexpectedly, dietary glucose does not directly act on NPF-positive EECs. Rather, it contributes to elevation of hemolymph fructose generated through the polyol pathway. Elevated fructose stimulates the fructose-specific gustatory receptor, Gr43a, in NPF-positive EECs, leading to NPF secretion. This study demonstrates that circulating fructose, derived from dietary sugars, is a prerequisite for the GSC increase that leads to enhancement of egg production after mating.
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Affiliation(s)
- Ryo Hoshino
- Degree Programs in Life and Earth Sciences, Graduate School of Science and Technology, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan
| | - Hiroko Sano
- Department of Molecular Genetics, Institute of Life Science, Kurume University, Kurume, Fukuoka 830-0011, Japan
| | - Yuto Yoshinari
- Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi 371-8512, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
| | - Takashi Nishimura
- Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi 371-8512, Japan
| | - Ryusuke Niwa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
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Simmons C, Bradshaw TW, Armstrong AR. Methods to Analyze Nutritional and Inter-Organ Control of Drosophila Ovarian Germline Stem Cells. Methods Mol Biol 2023; 2677:81-97. [PMID: 37464236 DOI: 10.1007/978-1-0716-3259-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Physiological status, particularly dietary input, has major impacts on the Drosophila melanogaster ovarian germline stem cell lineage. Moreover, several studies have shed light on the role that inter-organ communication plays in coordinating whole-organism responses to changes in physiology. For example, nutrient-sensing signaling pathways function within the fat body to regulate germline stem cells and their progeny in the ovary. Together with its incredible genetic and cell biological toolkits, Drosophila serves as an amenable model organism to use for uncovering molecular mechanisms that underlie physiological control of adult stem cells. In this methods chapter, we describe a general dietary manipulation paradigm, genetic manipulation of adult adipocytes, and whole-mount ovary immunofluorescence to investigate physiological control of germline stem cells.
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Affiliation(s)
- Chad Simmons
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - Tancia W Bradshaw
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - Alissa R Armstrong
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA.
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The Effects of Male Seminal Fluid Proteins on Gut/Gonad Interactions in Drosophila. INSECTS 2022; 13:insects13070623. [PMID: 35886799 PMCID: PMC9324770 DOI: 10.3390/insects13070623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/05/2022] [Accepted: 07/10/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary The functions of organ systems must be coordinated for physiological homeostasis to occur. For example, after mating, coordination between insect digestive and reproductive systems is needed to ensure adequate nutrition for efficient egg/progeny production, and, conversely, to attune egg production levels to nutrient availability. Recent studies of Drosophila have revealed much about the post-mating changes in female reproductive tract function and in gut homeostasis, and the induction of these changes by male seminal proteins. Interesting regulatory connections between the organ systems and their responses have come to light in those studies. We have gathered these data into a single network schematic of the signaling events that operate within and between the reproductive and digestive systems downstream of seminal fluid proteins, summarizing current knowledge of the crosstalk between the systems and raising open questions for future study. Abstract Mating initiates broad physiological changes encompassing multiple organ systems in females. Elucidating the complex inter- and intra-organ signaling events that coordinate these physiological changes is an important goal in the field of reproductive biology. Further characterization of these complex molecular and physiological interactions is key to understanding how females meet the energetic demands of offspring production. Many recent studies of the fruit fly, Drosophila melanogaster, have described the mechanisms of post-mating changes within the female reproductive tract and digestive system. Additionally, other studies have described post-mating signaling crosstalk between these systems. Interestingly, male seminal fluid proteins have been linked to post-mating responses within the female reproductive tract and gut, and to signaling events between the two organ systems. However, information about the hormonal and neuronal signaling pathways underlying the post-mating signaling events within and between the reproductive tract and digestive systems that are triggered by seminal fluid proteins has yet to be combined into a single view. In this article, we summarize and integrate these studies into a single “network schematic” of the known signaling events within and between the reproductive and digestive systems downstream of male seminal fluid proteins. This synthesis also draws attention to the incomplete parts of these pathways, so that outstanding questions may be addressed in future studies.
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Life-History Traits from Embryonic Development to Reproduction in the American Cockroach. INSECTS 2022; 13:insects13060551. [PMID: 35735888 PMCID: PMC9225176 DOI: 10.3390/insects13060551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 12/01/2022]
Abstract
Simple Summary The American cockroach is a widely distributed sanitary pest closely related to human life. The American cockroach is not only a hygienic pest that we all know but also beneficial to humans as its extract can be used medicinally and could be a model organism for physiology and neuroscience studies. In this study, we provide a life table of the American cockroach in a stable environment, including embryonic development, nymphal instars, and adult reproduction. Newly laid eggs hatch into nymphs after about 35 days of embryonic development. Under sufficient materials and space, gregarious nymphs undergo 14 molts before transforming into adults. Adult females can produce fertile offspring whether they have mated or not. On average, mated females produce an ootheca every 4 days, while unmated females produce an ootheca every 10 days. Each ootheca contains 12–16 eggs. Additionally, group living seems to improve the survival rate of offspring of unmated females. Abstract The American cockroach, Periplaneta americana (Insecta: Blattodea: Solumblattodea: Blattidae), is an urban hygiene pest but also a model organism for physiology and neuroscience study. However, the current description of the developmental process of the American cockroach is insufficient. In this study, we provide a life table of the American cockroach in a stable environment, including embryonic development, nymphal instars and adult reproduction. Our results show that there are 14 nymphal instars of the American cockroach in groups with sufficient living materials and space. The secondary sexual characteristics are evident in last-instar nymphs and adults, namely, the complete absence of the anal stylus in females. The entire embryonic development process was divided into 20 stages on the basis of lateral-view observations of the embryos. The formation of the embryo involves the fusion of paired blastoderm regions with higher cellular density, similar to that in other insects of Polyneoptera. With respect to reproduction, the gamogenetic females produced their first ootheca earlier than the parthenogenic females, and the frequency of oviposition was higher for the former throughout adulthood. Interestingly, group living seems to improve the parthenogenesis success rate in the American cockroach.
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Okamoto N, Watanabe A. Interorgan communication through peripherally derived peptide hormones in Drosophila. Fly (Austin) 2022; 16:152-176. [PMID: 35499154 PMCID: PMC9067537 DOI: 10.1080/19336934.2022.2061834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In multicellular organisms, endocrine factors such as hormones and cytokines regulate development and homoeostasis through communication between different organs. For understanding such interorgan communications through endocrine factors, the fruit fly Drosophila melanogaster serves as an excellent model system due to conservation of essential endocrine systems between flies and mammals and availability of powerful genetic tools. In Drosophila and other insects, functions of neuropeptides or peptide hormones from the central nervous system have been extensively studied. However, a series of recent studies conducted in Drosophila revealed that peptide hormones derived from peripheral tissues also play critical roles in regulating multiple biological processes, including growth, metabolism, reproduction, and behaviour. Here, we summarise recent advances in understanding target organs/tissues and functions of peripherally derived peptide hormones in Drosophila and describe how these hormones contribute to various biological events through interorgan communications.
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Affiliation(s)
- Naoki Okamoto
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Akira Watanabe
- Degree Programs in Life and Earth Sciences, Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Kamiyama T, Niwa R. Transcriptional Regulators of Ecdysteroid Biosynthetic Enzymes and Their Roles in Insect Development. Front Physiol 2022; 13:823418. [PMID: 35211033 PMCID: PMC8863297 DOI: 10.3389/fphys.2022.823418] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 01/12/2022] [Indexed: 12/23/2022] Open
Abstract
Steroid hormones are responsible for coordinating many aspects of biological processes in most multicellular organisms, including insects. Ecdysteroid, the principal insect steroid hormone, is biosynthesized from dietary cholesterol or plant sterols. In the last 20 years, a number of ecdysteroidogenic enzymes, including Noppera-bo, Neverland, Shroud, Spook/Spookier, Cyp6t3, Phantom, Disembodied, Shadow, and Shade, have been identified and characterized in molecular genetic studies using the fruit fly Drosophila melanogaster. These enzymes are encoded by genes collectively called the Halloween genes. The transcriptional regulatory network, governed by multiple regulators of transcription, chromatin remodeling, and endoreplication, has been shown to be essential for the spatiotemporal expression control of Halloween genes in D. melanogaster. In this review, we summarize the latest information on transcriptional regulators that are crucial for controlling the expression of ecdysteroid biosynthetic enzymes and their roles in insect development.
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Affiliation(s)
- Takumi Kamiyama
- College of Biological Sciences, Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ryusuke Niwa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Japan
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