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Vicentini M, Pessatti JBK, Perussolo MC, Lirola JR, Marcondes FR, Nascimento N, Mela M, Cestari MM, Prodocimo V, Simmons D, Silva de Assis HC. Different response of females and males Neotropical catfish (Rhamdia quelen) upon short-term temperature increase. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:477-494. [PMID: 38112904 DOI: 10.1007/s10695-023-01278-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/24/2023] [Indexed: 12/21/2023]
Abstract
Climate change has been one of the most discussed topics in the world. Global warming is characterized by an increase in global temperature, also in aquatic environments. The increased temperature can affect aquatic organisms with lethal and sublethal effects. Thus, it is necessary to understand how different species respond to temperature. This study aimed to evaluate how the Neotropical catfish species Rhamdia quelen responds to temperature increases. The fish were exposed to temperatures of 25 °C (control) and 30 °C after gradual temperature increase for 7 days. After 96 h in each temperature, the fish were anesthetized, blood was collected, and after euthanasia, brain, liver, posterior kidney, gills, muscle, and gonads were collected. The gonads were used for sexing, while other tissues were used for the hematological, biochemical, genotoxic, and histopathological biomarkers analysis. Hepatic proteomic analysis with a focus on energy production was also carried out. Blood parameter changes in both sexes, including an increase in glucose in males, leukopenia in females, and genotoxicity in both sexes. Hepatic proteins related to energy production were altered in both sexes, but mainly in males. Others biomarker alterations, such as histopathological, were not observed in other tissues; however, the antioxidant system was affected differently between sexes. These showed that R. quelen juveniles, at temperatures higher than its optimum temperature such as 30 °C, has several sublethal changes, such as hematological alterations, antioxidant system activation, and energetic metabolism alteration, especially in males. Thus, short-term temperature rise can affect females and males of R. quelen differently.
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Affiliation(s)
- Maiara Vicentini
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Pharmacology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | | | - Maiara Carolina Perussolo
- Pharmacology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Pelé Pequeno Príncipe Research Institute, Curitiba, PR, 80250-200, Brazil
| | - Juliana Roratto Lirola
- Genetics Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | | | - Natalia Nascimento
- Physiology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Maritana Mela
- Cell Biology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Marta Margarete Cestari
- Genetics Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Viviane Prodocimo
- Physiology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Denina Simmons
- Faculty of Science, OntarioTech University, Oshawa, ON, L1G 0C5, Canada
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Torres-Martínez A, Hattori RS, Fernandino JI, Somoza GM, Hung SD, Masuda Y, Yamamoto Y, Strüssmann CA. Temperature- and genotype-dependent stress response and activation of the hypothalamus-pituitary-interrenal axis during temperature-induced sex reversal in pejerrey Odontesthes bonariensis, a species with genotypic and environmental sex determination. Mol Cell Endocrinol 2024; 582:112114. [PMID: 38008372 DOI: 10.1016/j.mce.2023.112114] [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: 07/31/2023] [Revised: 11/03/2023] [Accepted: 11/17/2023] [Indexed: 11/28/2023]
Abstract
In the pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae), exposure to high and low temperatures during the critical period of sex determination (CPSD) induce testicular and ovarian differentiation, respectively, regardless of the presence or not of the sex determining gene amhy, which is crucial for testis formation only at intermediate, sexually neutral temperatures. In this study we explored the existence of genotype-specific signaling of Crh (Corticotropin Releasing Hormone) family genes and their associated carrier protein, receptors, and other stress-related genes in response to temperature during the CPSD and the potential involvement of the central nervous system via the hypothalamus-pituitary-interrenal (HPI) axis in the sex determination of this species. The Crh family genes crhb, uts1, ucn3, the receptor crhr1 and the stress-related genes gr1, gr2, nr3c2 were transiently upregulated in the heads of pejerrey larvae during the CPSD by high temperature alone or in combination with other factors. Only crhr2 transcript abundance was not influenced by temperature but independently by time and genotype. In most cases, mRNA abundance was higher in the XX heads compared to that of XY individuals. The mRNAs of some of these genes were localized in the hypothalamus of pejerrey larvae during the CPSD. XX larvae also showed higher whole-body cortisol titers than the XY, downregulation of cyp19a1a and upregulation of the testis-related genes amhy/amha in trunks (gonads) and were 100% masculinized at the high temperature. In contrast, at the low temperature, crhbp and avt were upregulated in the heads, particularly the former in XY larvae. cyp19a1a and amhy/amha were up- and downregulated, respectively, in the gonads, and fish were 100% feminized. Signaling via the HPI axis was observed simultaneously with the first molecular signs of ongoing sex determination/differentiation in the gonads. Overall, the results strongly suggest a temperature-dependent, genotype-specific regulatory action of the brain involving the Crh family of stress-related genes on the process of environmental sex determination of pejerrey.
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Affiliation(s)
- Aarón Torres-Martínez
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Ricardo Shohei Hattori
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Juan Ignacio Fernandino
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), 7130, Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina
| | - Gustavo Manuel Somoza
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), 7130, Chascomús, Argentina; Escuela de Bio y Nanotecnologías (UNSAM), Argentina
| | - Song Dong Hung
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Yuki Masuda
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Yoji Yamamoto
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Carlos Augusto Strüssmann
- Department of Marine Biosciences. Graduate School of Marine Science and Technology. Tokyo University of Marine Science and Technology, Tokyo, Japan.
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3
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Yu Y, Chen M, Shen ZG. Molecular biological, physiological, cytological, and epigenetic mechanisms of environmental sex differentiation in teleosts: A systematic review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115654. [PMID: 37918334 DOI: 10.1016/j.ecoenv.2023.115654] [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: 08/23/2023] [Revised: 10/26/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
Human activities have been exerting widespread stress and environmental risks in aquatic ecosystems. Environmental stress, including temperature rise, acidification, hypoxia, light pollution, and crowding, had a considerable negative impact on the life histology of aquatic animals, especially on sex differentiation (SDi) and the resulting sex ratios. Understanding how the sex of fish responds to stressful environments is of great importance for understanding the origin and maintenance of sex, the dynamics of the natural population in the changing world, and the precise application of sex control in aquaculture. This review conducted an exhaustive search of the available literature on the influence of environmental stress (ES) on SDi. Evidence has shown that all types of ES can affect SDi and universally result in an increase in males or masculinization, which has been reported in 100 fish species and 121 cases. Then, this comprehensive review aimed to summarize the molecular biology, physiology, cytology, and epigenetic mechanisms through which ES contributes to male development or masculinization. The relationship between ES and fish SDi from multiple aspects was analyzed, and it was found that environmental sex differentiation (ESDi) is the result of the combined effects of genetic and epigenetic factors, self-physiological regulation, and response to environmental signals, which involves a sophisticated network of various hormones and numerous genes at multiple levels and multiple gradations in bipotential gonads. In both normal male differentiation and ES-induced masculinization, the stress pathway and epigenetic regulation play important roles; however, how they co-regulate SDi is unclear. Evidence suggests that the universal emergence or increase in males in aquatic animals is an adaptation to moderate ES. ES-induced sex reversal should be fully investigated in more fish species and extensively in the wild. The potential aquaculture applications and difficulties associated with ESDi have also been addressed. Finally, the knowledge gaps in the ESDi are presented, which will guide the priorities of future research.
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Affiliation(s)
- Yue Yu
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China
| | - Min Chen
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China
| | - Zhi-Gang Shen
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan, PR China.
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Castañeda-Cortés DC, Rosa IF, Boan AF, Marrone D, Pagliaro N, Oliveira MA, Rodrigues MS, Doretto LB, Silva C, Tavares-Júnior J, Costa DF, Dodds MS, Strobl-Mazzulla PH, Langlois VS, Nóbrega RH, Fernandino JI. Thyroid axis participates in high-temperature-induced male sex reversal through its activation by the stress response. Cell Mol Life Sci 2023; 80:253. [PMID: 37589787 PMCID: PMC11071808 DOI: 10.1007/s00018-023-04913-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/15/2023] [Accepted: 08/04/2023] [Indexed: 08/18/2023]
Abstract
Environmental changes alter the sex fate in about 15% of vertebrate orders, mainly in ectotherms such as fish and reptiles. However, the effects of temperature changes on the endocrine and molecular processes controlling gonadal sex determination are not fully understood. Here, we provide evidence that thyroid hormones (THs) act as co-players in heat-induced masculinization through interactions with the stress axis to promote testicular development. We first demonstrated that the thyroid axis (through thyroid-related genes and T3 levels) is highly active in males during the gonadal development in medaka (Oryzias latipes). Similarly, T3 treatments promoted female-to-male sex reversal in XX embryos. Subsequently, embryonic exposure to temperature-induced stress up-regulated the genes related to the thyroid and stress axes with a final increase in T3 levels. In this context, we show that blocking the stress axis response by the loss of function of the corticotropin-releasing hormone receptors suppresses thyroid-stimulating hormone expression, therefore, heat-induced activation of the thyroid axis. Thus, our data showed that early activation of the stress axis and, in consequence, the TH axis, too, leaves us with that both being important endocrine players in inducing female-to-male reversal, which can help predict possible upcoming physiological impacts of global warming on fish populations.
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Affiliation(s)
- Diana C Castañeda-Cortés
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
- Institut National de la Recherche Scientifique (INRS) - Centre Eau Terre Environnement, Québec, QC, Canada
| | - Ivana F Rosa
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Agustín F Boan
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
| | - Demian Marrone
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
| | - Natalia Pagliaro
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
| | - Marcos A Oliveira
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Maira S Rodrigues
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Lucas B Doretto
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Camila Silva
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - José Tavares-Júnior
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Daniel F Costa
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - María S Dodds
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
| | - Pablo H Strobl-Mazzulla
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina
| | - Valerie S Langlois
- Institut National de la Recherche Scientifique (INRS) - Centre Eau Terre Environnement, Québec, QC, Canada.
| | - Rafael H Nóbrega
- Reproductive and Molecular Biology Group, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Vodňany, Ceske Budejovice, 389 25, Czech Republic.
| | - Juan I Fernandino
- Instituto Tecnológico de Chascomús, INTECH (CONICET-UNSAM), Chascomús, Argentina.
- Escuela de Bio y Nanotecnologías (UNSAM), Chascomús, Argentina.
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5
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Horiuchi M, Hagihara S, Kume M, Chushi D, Hasegawa Y, Itakura H, Yamashita Y, Adachi S, Ijiri S. Morphological and Molecular Gonadal Sex Differentiation in the Wild Japanese eel Anguilla japonica. Cells 2022; 11:cells11091554. [PMID: 35563858 PMCID: PMC9105286 DOI: 10.3390/cells11091554] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 02/04/2023] Open
Abstract
Most cultured Japanese eels (Anguilla japonica) show male sex differentiation; however, natural gonadal sex differentiation has not been evaluated. In this study, this process was characterized in wild eels. Differentiated ovaries and testes were observed after the eels grew to 320 and 300 mm in total length, respectively. The youngest ovary and testis appeared at 3 and 4 years old, respectively; however, undifferentiated gonads were found up to 7 years, suggesting that sex differentiation was triggered by growth rather than aging. gsdf, amh, foxl2b and foxl3b were highly expressed in the testes, whereas figla, sox3, foxn5, zar1, and zp3 were highly expressed in the ovaries. The expression of cyp19a1a and foxl2a did not differ significantly between the testis and ovary. In the ovaries, the cyp19a1a and foxl2a levels were highest in the early stages, suggesting that their function is limited to early ovarian differentiation. The foxn5, zar1 and zp3 levels tended to increase in the later stages, suggesting that they function after the initiation of ovarian differentiation. In undifferentiated gonads, dimorphic gene expression was not observed, suggesting that the molecular sex differentiation phase is short and difficult to detect. These findings provide the first demonstration of the whole course of natural gonadal sex differentiation in eels at molecular and morphological levels.
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Affiliation(s)
- Moemi Horiuchi
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan; (M.H.); (D.C.); (Y.H.); (S.A.)
| | - Seishi Hagihara
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8564, Chiba, Japan; (S.H.); (H.I.)
| | - Manabu Kume
- Field Science Education and Research Center, Kyoto University, Kyoto 606-8502, Kyoto, Japan; (M.K.); (Y.Y.)
| | - Daichi Chushi
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan; (M.H.); (D.C.); (Y.H.); (S.A.)
| | - Yuya Hasegawa
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan; (M.H.); (D.C.); (Y.H.); (S.A.)
| | - Hikaru Itakura
- Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8564, Chiba, Japan; (S.H.); (H.I.)
| | - Yoh Yamashita
- Field Science Education and Research Center, Kyoto University, Kyoto 606-8502, Kyoto, Japan; (M.K.); (Y.Y.)
| | - Shinji Adachi
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan; (M.H.); (D.C.); (Y.H.); (S.A.)
| | - Shigeho Ijiri
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Hokkaido, Japan; (M.H.); (D.C.); (Y.H.); (S.A.)
- Correspondence:
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Delbes G, Blázquez M, Fernandino JI, Grigorova P, Hales BF, Metcalfe C, Navarro-Martín L, Parent L, Robaire B, Rwigemera A, Van Der Kraak G, Wade M, Marlatt V. Effects of endocrine disrupting chemicals on gonad development: Mechanistic insights from fish and mammals. ENVIRONMENTAL RESEARCH 2022; 204:112040. [PMID: 34509487 DOI: 10.1016/j.envres.2021.112040] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Over the past century, evidence has emerged that endocrine disrupting chemicals (EDCs) have an impact on reproductive health. An increased frequency of reproductive disorders has been observed worldwide in both wildlife and humans that is correlated with accidental exposures to EDCs and their increased production. Epidemiological and experimental studies have highlighted the consequences of early exposures and the existence of key windows of sensitivity during development. Such early in life exposures can have an immediate impact on gonadal and reproductive tract development, as well as on long-term reproductive health in both males and females. Traditionally, EDCs were thought to exert their effects by modifying the endocrine pathways controlling reproduction. Advances in knowledge of the mechanisms regulating sex determination, differentiation and gonadal development in fish and rodents have led to a better understanding of the molecular mechanisms underlying the effects of early exposure to EDCs on reproduction. In this manuscript, we review the key developmental stages sensitive to EDCs and the state of knowledge on the mechanisms by which model EDCs affect these processes, based on the roadmap of gonad development specific to fish and mammals.
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Affiliation(s)
- G Delbes
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada.
| | - M Blázquez
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | - J I Fernandino
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
| | | | - B F Hales
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
| | - C Metcalfe
- School of Environment, Trent University, Trent, Canada
| | - L Navarro-Martín
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - L Parent
- Université TELUQ, Montréal, Canada
| | - B Robaire
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada; Department of Obstetrics and Gynecology, McGill University, Montreal, Canada
| | - A Rwigemera
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada
| | - G Van Der Kraak
- Department of Integrative Biology, University of Guelph, Guelph, Canada
| | - M Wade
- Environmental Health Science & Research Bureau, Health Canada, Ottawa, Canada
| | - V Marlatt
- Department of Biological Sciences, Simon Fraser University, Burnaby, Canada
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Rousseau K, Dufour S, Sachs LM. Interdependence of Thyroid and Corticosteroid Signaling in Vertebrate Developmental Transitions. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.735487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Post-embryonic acute developmental processes mainly allow the transition from one life stage in a specific ecological niche to the next life stage in a different ecological niche. Metamorphosis, an emblematic type of these post-embryonic developmental processes, has occurred repeatedly and independently in various phylogenetic groups throughout metazoan evolution, such as in cnidarian, insects, molluscs, tunicates, or vertebrates. This review will focus on metamorphoses and developmental transitions in vertebrates, including typical larval metamorphosis in anuran amphibians, larval and secondary metamorphoses in teleost fishes, egg hatching in sauropsids and birth in mammals. Two neuroendocrine axes, the hypothalamic-pituitary-thyroid and the hypothalamic-pituitary-adrenal/interrenal axes, are central players in the regulation of these life transitions. The review will address the molecular and functional evolution of these axes and their interactions. Mechanisms of integration of internal and environmental cues, and activation of these neuroendocrine axes represent key questions in an “eco-evo-devo” perspective of metamorphosis. The roles played by developmental transitions in the innovation, adaptation, and plasticity of life cycles throughout vertebrates will be discussed. In the current context of global climate change and habitat destruction, the review will also address the impact of environmental factors, such as global warming and endocrine disruptors on hypothalamic-pituitary-thyroid and hypothalamic-pituitary-adrenal/interrenal axes, and regulation of developmental transitions.
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Strüssmann CA, Yamamoto Y, Hattori RS, Fernandino JI, Somoza GM. Where the Ends Meet: An Overview of Sex Determination in Atheriniform Fishes. Sex Dev 2021; 15:80-92. [PMID: 33951664 DOI: 10.1159/000515191] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/22/2021] [Indexed: 11/19/2022] Open
Abstract
Atheriniform fishes have recently emerged as attractive models for evolutionary, ecological, and molecular/physiological studies on sex determination. Many species in this group have marked temperature-dependent sex determination (TSD) and yet many species also have a sex determinant gene that provides a strong drive for male differentiation. Thus, in these species the 2 forms of sex determination that were once considered to be mutually exclusive, environmental (ESD) and genotypic (GSD) sex determination, can coexist at environmentally relevant conditions. Here, we review the current knowledge on sex determination in atheriniform fishes with emphasis on the molecular and physiological mechanisms of ESD and GSD, the coexistence and cross-talk between these 2 mechanisms, the possibility of extragonadal transduction of environmental information and/or extragonadal onset of sex determination, and the results of field studies applying novel tools such as otolith increment analysis and molecular markers of genetic sex developed for selected New World and Old World atheriniform species. We also discuss the existence of molecular and histological mechanisms to prevent the discrepant differentiation in parts of the gonads because of ambiguous or conflicting environmental and genetic signals and particularly the possibility that the female is the default state in these species.
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Affiliation(s)
- Carlos A Strüssmann
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Yoji Yamamoto
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Ricardo S Hattori
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Juan I Fernandino
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
| | - Gustavo M Somoza
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
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