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Ramos-Rodríguez S, Ortega-Ramírez K, Méndez-Can L, Galindo-Sánchez C, Galindo-Torres P, Ventura-López C, Mascaro M, Caamal-Monsreal C, Rodríguez G, Díaz F, Rosas C. The hard life of an octopus embryo is seen through gene expression, energy metabolism, and its ability to neutralize radical oxygen species. Sci Rep 2024; 14:16510. [PMID: 39020012 PMCID: PMC11255218 DOI: 10.1038/s41598-024-67335-9] [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: 02/02/2024] [Accepted: 07/10/2024] [Indexed: 07/19/2024] Open
Abstract
The reproductive process in Octopus maya was analyzed to establish the amount of reactive oxygen species that the embryos inherit from females, during yolk synthesis. At the same time, respiratory metabolism, ROS production, and the expression of some genes of the antioxidant system were monitored to understand the ability of embryos to neutralize maternal ROS and those produced during development. The results indicate that carbonylated proteins and peroxidized lipids (LPO) were transferred from females to the embryos, presumably derived from the metabolic processes carried out during yolk synthesis in the ovary. Along with ROS, females also transferred to embryos glutathione (GSH), a key element of the antioxidant defense system, thus facilitating the neutralization of inherited ROS and those produced during development. Embryos are capable of neutralizing ROS thanks to the early expression of genes such as catalase (CAT) and superoxide dismutase (SOD), which give rise to the synthesis of enzymes when the circulatory system is activated. Also, it was observed that the levels of the routine metabolic rate of embryos are almost as high as those of the maximum activity metabolism, which leads, on the one hand, to the elevated production of ROS and suggests that, at this stage of the life cycle in octopuses, energy production is maximum and is physically limited by the biological properties inherent to the structure of embryonic life (oxygen transfer through the chorion, gill surface, pumping capacity, etc.). Due to its role in regulating vascularization, a high expression of HIf-1A during organogenesis suggests that circulatory system development has begun in this phase of embryo development. The results indicate that the routine metabolic rate and the ability of O. maya embryos to neutralize the ROS are probably the maximum possible. Under such circumstances, embryos cannot generate more energy to combat the free radicals produced by their metabolism, even when environmental factors such as high temperatures or contaminants could demand excess energy.
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Affiliation(s)
- Sadot Ramos-Rodríguez
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), CP 22860, Ensenada, BC, México
| | - Karen Ortega-Ramírez
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México
| | - Luisa Méndez-Can
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México
| | - Clara Galindo-Sánchez
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), CP 22860, Ensenada, BC, México
| | - Pavel Galindo-Torres
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), CP 22860, Ensenada, BC, México
| | - Claudia Ventura-López
- Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), CP 22860, Ensenada, BC, México
| | - Maite Mascaro
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México
| | - Claudia Caamal-Monsreal
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México
| | - Gabriela Rodríguez
- Unidad de Química en Sisal, Facultad de Química UNAM, CP 97355, Sisal Yucatán, México
| | - Fernando Díaz
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México
| | - Carlos Rosas
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI), Facultad de Ciencias UNAM, CP 97355, Sisal Yucatán, México.
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2
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Reda GK, Ndunguru SF, Csernus B, Gulyás G, Knop R, Szabó C, Czeglédi L, Lendvai ÁZ. Dietary restriction and life-history trade-offs: insights into mTOR pathway regulation and reproductive investment in Japanese quail. J Exp Biol 2024; 227:jeb247064. [PMID: 38563310 DOI: 10.1242/jeb.247064] [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: 11/26/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
Resources are needed for growth, reproduction and survival, and organisms must trade off limited resources among competing processes. Nutritional availability in organisms is sensed and monitored by nutrient-sensing pathways that can trigger physiological changes or alter gene expression. Previous studies have proposed that one such signalling pathway, the mechanistic target of rapamycin (mTOR), underpins a form of adaptive plasticity when individuals encounter constraints in their energy budget. Despite the fundamental importance of this process in evolutionary biology, how nutritional limitation is regulated through the expression of genes governing this pathway and its consequential effects on fitness remain understudied, particularly in birds. We used dietary restriction to simulate resource depletion and examined its effects on body mass, reproduction and gene expression in Japanese quails (Coturnix japonica). Quails were subjected to feeding at 20%, 30% and 40% restriction levels or ad libitum for 2 weeks. All restricted groups exhibited reduced body mass, whereas reductions in the number and mass of eggs were observed only under more severe restrictions. Additionally, dietary restriction led to decreased expression of mTOR and insulin-like growth factor 1 (IGF1), whereas the ribosomal protein S6 kinase 1 (RPS6K1) and autophagy-related genes (ATG9A and ATG5) were upregulated. The pattern in which mTOR responded to restriction was similar to that for body mass. Regardless of the treatment, proportionally higher reproductive investment was associated with individual variation in mTOR expression. These findings reveal the connection between dietary intake and the expression of mTOR and related genes in this pathway.
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Affiliation(s)
- Gebrehaweria K Reda
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
- Doctoral School of Animal Science, University of Debrecen, 4032 Debrecen, Hungary
- Department of Evolutionary Zoology and Human Biology, Faculty of Life Science, University of Debrecen, 4032 Debrecen, Hungary
| | - Sawadi F Ndunguru
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
- Doctoral School of Animal Science, University of Debrecen, 4032 Debrecen, Hungary
- Department of Evolutionary Zoology and Human Biology, Faculty of Life Science, University of Debrecen, 4032 Debrecen, Hungary
| | - Brigitta Csernus
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
- Department of Evolutionary Zoology and Human Biology, Faculty of Life Science, University of Debrecen, 4032 Debrecen, Hungary
| | - Gabriella Gulyás
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
| | - Renáta Knop
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
| | - Csaba Szabó
- Department of Animal Nutrition and Physiology, Faculty of Agriculture and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
| | - Levente Czeglédi
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary
| | - Ádám Z Lendvai
- Department of Evolutionary Zoology and Human Biology, Faculty of Life Science, University of Debrecen, 4032 Debrecen, Hungary
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3
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Monaghan P. Linking telomere dynamics to evolution, life history and environmental change: perspectives, predictions and problems. Biogerontology 2024; 25:301-311. [PMID: 38252370 PMCID: PMC10998769 DOI: 10.1007/s10522-023-10081-8] [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: 09/25/2023] [Accepted: 11/13/2023] [Indexed: 01/23/2024]
Abstract
This perspectives paper considers the value of studying telomere biology outside of a biomedical context. I provide illustrative examples of the kinds of questions that evolutionary ecologists have addressed in studies of telomere dynamics in non-model species, primarily metazoan animals, and what this can contribute to our understanding of their evolution, life histories and health. I also discuss why the predicted relationships between telomere dynamics and life history traits, based on the detailed cellular studies in humans and model organisms, are not always found in studies in other species.
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Affiliation(s)
- Pat Monaghan
- School of Biodiversity, One Health and Veterinary Medicine, Graham Kerr Building University of Glasgow, Glasgow, G12 8QQ, UK.
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4
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Birch G, Meniri M, Cant MA, Blount JD. Defence against the intergenerational cost of reproduction in males: oxidative shielding of the germline. Biol Rev Camb Philos Soc 2024; 99:70-84. [PMID: 37698166 DOI: 10.1111/brv.13012] [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: 01/23/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 09/13/2023]
Abstract
Reproduction is expected to carry an oxidative cost, yet in many species breeders appear to sustain lower levels of oxidative damage compared to non-breeders. This paradox may be explained by considering the intergenerational costs of reproduction. Specifically, a reduction in oxidative damage upon transitioning to a reproductive state may represent a pre-emptive shielding strategy to protect the next generation from intergenerational oxidative damage (IOD) - known as the oxidative shielding hypothesis. Males may be particularly likely to transmit IOD, because sperm are highly susceptible to oxidative damage. Yet, the possibility of male-mediated IOD remains largely uninvestigated. Here, we present a conceptual and methodological framework to assess intergenerational costs of reproduction and oxidative shielding of the germline in males. We discuss variance in reproductive costs and expected payoffs of oxidative shielding according to species' life histories, and the expected impact on offspring fitness. Oxidative shielding presents an opportunity to incorporate intergenerational effects into the advancing field of life-history evolution.
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Affiliation(s)
- Graham Birch
- Centre for Ecology & Conservation, Faculty of Environment, Science & Economy, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, UK
| | - Magali Meniri
- Centre for Ecology & Conservation, Faculty of Environment, Science & Economy, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, UK
| | - Michael A Cant
- Centre for Ecology & Conservation, Faculty of Environment, Science & Economy, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, UK
| | - Jonathan D Blount
- Centre for Ecology & Conservation, Faculty of Environment, Science & Economy, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, UK
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5
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Shephard AM, Hund AK, Snell-Rood EC. Metabolic stress as a driver of life-history plasticity: flight promotes longevity and antioxidant production in monarch butterflies. Proc Biol Sci 2023; 290:20231616. [PMID: 37817587 PMCID: PMC10565393 DOI: 10.1098/rspb.2023.1616] [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: 07/19/2023] [Accepted: 09/15/2023] [Indexed: 10/12/2023] Open
Abstract
Life-history theory predicts that increased investment in traits related to reproduction will be associated with a reduced ability to invest in survival or longevity. One mechanistic explanation for this trade-off is that metabolic stress generated from current fitness activities (e.g. reproduction or locomotion) will increase somatic damage, leading to reduced longevity. Yet, there has been limited support for this damage-based hypothesis. A possible explanation is that individuals can respond to increases in metabolic stress by plastically inducing cellular maintenance responses, which may increase, rather than decrease, longevity. We tested this possibility by experimentally manipulating investment in flight activity (a metabolic stressor) in the migratory monarch butterfly (Danaus plexippus), a species whose reproductive fitness is dependent on survival through a period of metabolically intensive migratory flight. Consistent with the idea that metabolic stress stimulated investment in self-maintenance, increased flight activity enhanced monarch butterfly longevity and somatic tissue antioxidant capacity, likely at a cost to reproductive investment. Our study implicates a role for metabolic stress as a driver of life-history plasticity and supports a model where current engagement in metabolically stressful activities promotes somatic survival by stimulating investment in self-maintenance processes.
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Affiliation(s)
- Alexander M. Shephard
- Department of Ecology, Evolution, and Behavior, University of Minnesota – Twin Cities, Saint Paul, MN 55108, USA
| | - Amanda K. Hund
- Department of Ecology, Evolution, and Behavior, University of Minnesota – Twin Cities, Saint Paul, MN 55108, USA
| | - Emilie C. Snell-Rood
- Department of Ecology, Evolution, and Behavior, University of Minnesota – Twin Cities, Saint Paul, MN 55108, USA
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6
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Domínguez-de-Barros A, Sifaoui I, Borecka Z, Dorta-Guerra R, Lorenzo-Morales J, Castro-Fuentes R, Córdoba-Lanús E. An approach to the effects of longevity, sexual maturity, and reproduction on telomere length and oxidative stress in different Psittacidae species. Front Genet 2023; 14:1156730. [PMID: 37021005 PMCID: PMC10067728 DOI: 10.3389/fgene.2023.1156730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/07/2023] [Indexed: 04/07/2023] Open
Abstract
Introduction: Aging is a multifactorial process that includes molecular changes such as telomere shortening. Telomeres shorten progressively with age in vertebrates, and their shortening rate has a significant role in determining the lifespan of a species. However, DNA loss can be enhanced by oxidative stress. The need for novel animal models has recently emerged as a tool to gather more information about the human aging process. Birds live longer than other mammals of the same size, and Psittacidae species are the most persevering of them, due to special key traits. Methods: We aimed to determine telomere length by qPCR, and oxidative stress status using colorimetric and fluorescence methods in different species of the order Psittaciformes with different lifespans. Results: We found that telomeres shorten with age for both long- and short-lived birds (p < 0.001 and p = 0.004, respectively), with long-lived birds presenting longer telomeres than short-lived ones (p = 0.001). In addition, short-lived birds accumulated more oxidative stress products than long-lived birds (p = 0.013), who showed a better antioxidant capacity (p < 0.001). Breeding was found related to telomere shortening in all species (p < 0.001 and p = 0.003 for long- and short-lived birds). Short-lived birds, especially breeding females, increased their oxidative stress products when breeding (p = 0.021), whereas long-lived birds showed greater resistance and even increased their antioxidant capacity (p = 0.002). Conclusion: In conclusion, the relationship between age and telomere length in Psittacidae was verified. The influence of breeding increased cumulative oxidative damage in short-lived species, while long-lived species may counteract this damage.
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Affiliation(s)
- Angélica Domínguez-de-Barros
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Inés Sifaoui
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Zuzanna Borecka
- Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Roberto Dorta-Guerra
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, La Laguna, Tenerife, Spain
- Departamento de Matemáticas, Estadística e Investigación Operativa, Facultad de Ciencias Sección de Matemáticas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Jacob Lorenzo-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, La Laguna, Tenerife, Spain
- Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Facultad de Ciencias de la Salud, Sección Medicina, Universidad de La Laguna, La Laguna, Tenerife, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Castro-Fuentes
- Departamento de Ciencias Médicas Básicas, Facultad de Ciencias de la Salud-Sección Medicina, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Elizabeth Córdoba-Lanús
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, La Laguna, Tenerife, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: Elizabeth Córdoba-Lanús,
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7
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Metcalfe NB, Olsson M. How telomere dynamics are influenced by the balance between mitochondrial efficiency, reactive oxygen species production and DNA damage. Mol Ecol 2022; 31:6040-6052. [PMID: 34435398 DOI: 10.1111/mec.16150] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/02/2021] [Accepted: 08/23/2021] [Indexed: 01/31/2023]
Abstract
It is well known that oxidative stress is a major cause of DNA damage and telomere attrition. Most endogenous reactive oxygen species (ROS) are produced in the mitochondria, producing a link between mitochondrial function, DNA integrity and telomere dynamics. In this review we will describe how ROS production, rates of damage to telomeric DNA and DNA repair are dynamic processes. The rate of ROS production depends on mitochondrial features such as the level of inner membrane uncoupling and the proportion of time that ATP is actively being produced. However, the efficiency of ATP production (the ATP/O ratio) is positively related to the rate of ROS production, so leading to a trade-off between the body's energy requirements and its need to prevent oxidative stress. Telomeric DNA is especially vulnerable to oxidative damage due to features such as its high guanine content; while repair to damaged telomere regions is possible through a range of mechanisms, these can result in more rapid telomere shortening. There is increasing evidence that mitochondrial efficiency varies over time and with environmental context, as do rates of DNA repair. We argue that telomere dynamics can only be understood by appreciating that the optimal solution to the trade-off between energetic efficiency and telomere protection will differ between individuals and will change over time, depending on resource availability, energetic demands and life history strategy.
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Affiliation(s)
- Neil B Metcalfe
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Mats Olsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
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8
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Sawecki J, Dijkstra PD. Mothers modify the cost of reproduction by dynamic changes in antioxidant function and filial cannibalism. Biol Lett 2022; 18:20220319. [PMID: 36349581 PMCID: PMC9653243 DOI: 10.1098/rsbl.2022.0319] [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: 07/13/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2023] Open
Abstract
Investment in current reproduction may negatively influence subsequent fitness. Oxidative stress has been proposed as a potential mediator of this trade-off between current and future reproductive success. However, evidence of reproduction causing oxidative stress is limited, possibly owing to compensatory mechanisms that counteract oxidative insults. Here we test the idea that organisms protect against oxidative challenges through a dynamic interaction between behavioural and physiological adjustments at different stages of reproduction. To test this idea, we manipulated maternal care in the mouthbrooding cichlid fish Astatotilapia burtoni by allowing females to continue care (brooders) or by preventing care (non-brooders). We found that brooders depleted the pool of antioxidants as brood care progressed; however, we only observed increased oxidative DNA damage at the early stage of care relative to non-brooders, possibly owing to upregulated antioxidant protection during later stages of care. Most brooders adjusted parental investment by consuming some of their offspring during mouthbrooding. Intriguingly, the level of filial cannibalism was positively related to liver antioxidant function. These changes in antioxidant function and filial cannibalism allow parents to manage the cost of reproduction and are important for our understanding of how oxidative stress mediates life-history trade-offs.
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Affiliation(s)
- Jake Sawecki
- Department of Biology, Central Michigan University, Mount Pleasant, MI 48859, USA
| | - Peter D. Dijkstra
- Department of Biology, Central Michigan University, Mount Pleasant, MI 48859, USA
- Neuroscience Program, Central Michigan University, Mount Pleasant, MI 48859, USA
- Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, USA
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9
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Cram DL. Oxidative stress and cognition in ecology. J Zool (1987) 2022. [DOI: 10.1111/jzo.13020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- D. L. Cram
- Department of Zoology University of Cambridge Cambridge UK
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10
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Oxidative Stress Is a Potential Cost of Synchronous Nesting in Olive Ridley Sea Turtles. Antioxidants (Basel) 2022; 11:antiox11091772. [PMID: 36139846 PMCID: PMC9495575 DOI: 10.3390/antiox11091772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/30/2022] [Accepted: 09/03/2022] [Indexed: 11/16/2022] Open
Abstract
Olive ridley sea turtles, Lepidochelys olivacea, exhibit a polymorphic reproductive behavior, nesting solitarily or in mass aggregations termed “arribadas”, where thousands of individuals nest synchronously. Arribada nesting provides fitness benefits including mate finding during nearshore aggregations and predator satiation at the time of hatching, but it is unknown if such benefits come with a physiological cost. We used plasma metabolite profiling, stable isotope analysis, biochemical and endocrine assays to test whether metabolic parameters differ between nesting modes, and if arribada nesting is associated with increased levels of oxidative damage compared to solitary nesting. Arribada nesters were bigger and had higher circulating thyroid hormone levels than solitary nesters. Similarly, pathways related to phospholipid and amino acid metabolism, catabolic processes, and antioxidant defense were enriched in individuals nesting in arribada. Stable isotope signatures in skin samples showed differences in feeding zones with arribada nesters likely feeding on benthic and potentially more productive grounds. Arribada nesters had increased levels of plasma lipid peroxidation and protein oxidation products compared to solitary nesters. These results suggest that metabolic profiles differ between nesting modes and that oxidative stress is a trade-off for the fitness benefits associated with arribada nesting.
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11
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Jacobs PJ, Finn KT, van Vuuren AKJ, Suess T, Hart DW, Bennett NC. Defining the link between oxidative stress, behavioural reproductive suppression and heterothermy in the Natal mole-rat (Cryptomys hottentotus natalensis). Comp Biochem Physiol B Biochem Mol Biol 2022; 261:110753. [PMID: 35537667 DOI: 10.1016/j.cbpb.2022.110753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 12/31/2022]
Abstract
Sub-lethal effects, such as oxidative stress, can be linked to various breeding and thermophysiological strategies, which themselves can be linked to seasonal variability in abiotic factors. In this study, we investigated the subterranean, social living Natal mole-rat (Cryptomys hottentotus natalensis), which, unlike other social mole-rat species, implements heterothermy seasonally in an attempt to avoid exercise-induced hyperthermia and relies solely on behavioural reproductive suppression to maintain reproductive skew in colonies. Subsequently, we investigated how oxidative stress varied between season, sex and breeding status in Natal mole-rats. Oxidative markers included total oxidant status (TOS measure of total peroxides present), total antioxidant capacity (TAC), OSI (oxidative stress index) and malondialdehyde (MDA) to measure oxidative stress. Breeding and non-breeding mole-rats of both sexes were captured during the summer (wet season) and winter (dry season). Seasonal environmental variables (air temperature, soil temperature and soil moisture) had a significant effect on TOS, OSI and MDA, where season affected each sex differently. Unlike other social mole-rat species that use both physiological and behavioural means of reproductive suppression, no oxidative costs to reproduction were present in the Natal mole-rats. Males had significantly higher MDA than females, which was most apparent in summer (wet season). We conclude that the significant oxidative damage in males is a consequence of exercise-induced oxidative stress, exacerbated by increased burrow humidities and poorer heat dissipation abilities as a function of body mass. This study highlights the importance of both breeding and thermophysiological strategies in affecting oxidative stress.
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Affiliation(s)
- Paul J Jacobs
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa.
| | - Kyle T Finn
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa
| | - Andries Koch Janse van Vuuren
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa
| | - Tobias Suess
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa
| | - Daniel William Hart
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa
| | - Nigel Charles Bennett
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria 0002, South Africa
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12
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Dujon AM, Boutry J, Tissot S, Lemaître JF, Boddy AM, Gérard AL, Alvergne A, Arnal A, Vincze O, Nicolas D, Giraudeau M, Telonis-Scott M, Schultz A, Pujol P, Biro PA, Beckmann C, Hamede R, Roche B, Ujvari B, Thomas F. Cancer Susceptibility as a Cost of Reproduction and Contributor to Life History Evolution. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.861103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Reproduction is one of the most energetically demanding life-history stages. As a result, breeding individuals often experience trade-offs, where energy is diverted away from maintenance (cell repair, immune function) toward reproduction. While it is increasingly acknowledged that oncogenic processes are omnipresent, evolving and opportunistic entities in the bodies of metazoans, the associations among reproductive activities, energy expenditure, and the dynamics of malignant cells have rarely been studied. Here, we review the diverse ways in which age-specific reproductive performance (e.g., reproductive aging patterns) and cancer risks throughout the life course may be linked via trade-offs or other mechanisms, as well as discuss situations where trade-offs may not exist. We argue that the interactions between host–oncogenic processes should play a significant role in life-history theory, and suggest some avenues for future research.
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13
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Dezetter M, Le Galliard JF, Leroux-Coyau M, Brischoux F, Angelier F, Lourdais O. Two stressors are worse than one: combined heatwave and drought affect hydration state and glucocorticoid levels in a temperate ectotherm. J Exp Biol 2022; 225:274818. [PMID: 35319758 DOI: 10.1242/jeb.243777] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 03/14/2022] [Indexed: 11/20/2022]
Abstract
Heatwaves and droughts are becoming more intense and frequent with climate change. These extreme weather events often occur simultaneously and may alter organismal physiology, yet their combined impacts remain largely unknown. Here, we experimentally investigated physiological responses of a temperate ectotherm, the asp viper (Vipera aspis), to a simulated heatwave and drought. We applied a two-by-two factorial design by manipulating the daily temperature cycle (control vs. heatwave) and the water availability (water available vs. water-deprived) over a month followed by exposure to standard thermal conditions with ad libium access to water. Simulated heatwave and water deprivation additively increased mass loss, while water deprivation led to greater plasma osmolality (dehydration). Mass gain from drinking after the treatment period was higher in vipers from the heatwave and water-deprived group suggesting that thirst was synergistically influenced by thermal and water constraints. Heatwave conditions and water deprivation also additively increased baseline corticosterone levels but did not influence basal metabolic rates and plasma markers of oxidative stress. Our results demonstrate that a short-term exposure to combined heatwave and drought can exacerbate physiological stress through additive effects, and interactively impact behavioral responses to dehydration. Considering combined effects of temperature and water availability is thus crucial to assess organismal responses to climate change.
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Affiliation(s)
- Mathias Dezetter
- Sorbonne University, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France.,Centre d'étude biologique de Chizé, UMR 7372 CNRS-La Rochelle Université, , 79360, Villiers en Bois, France
| | - Jean-François Le Galliard
- Sorbonne University, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France.,Ecole normale supérieure, PSL University, Département de biologie, CNRS, UMS 3194, Centre de recherche en écologie expérimentale et prédictive (CEREEP-Ecotron IleDeFrance), 11 chemin de Busseau, 77140 Saint-Pierre-lès-Nemours, France
| | - Mathieu Leroux-Coyau
- Sorbonne University, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France
| | - François Brischoux
- Centre d'étude biologique de Chizé, UMR 7372 CNRS-La Rochelle Université, , 79360, Villiers en Bois, France
| | - Fréderic Angelier
- Centre d'étude biologique de Chizé, UMR 7372 CNRS-La Rochelle Université, , 79360, Villiers en Bois, France
| | - Olivier Lourdais
- Centre d'étude biologique de Chizé, UMR 7372 CNRS-La Rochelle Université, , 79360, Villiers en Bois, France.,School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA
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14
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Meniri M, Evans E, Thompson FJ, Marshall HH, Nichols HJ, Lewis G, Holt L, Davey E, Mitchell C, Johnstone RA, Cant MA, Blount JD. Untangling the oxidative cost of reproduction: An analysis in wild banded mongooses. Ecol Evol 2022; 12:e8644. [PMID: 35342583 PMCID: PMC8928901 DOI: 10.1002/ece3.8644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/15/2022] [Indexed: 02/02/2023] Open
Abstract
The cost of reproduction plays a central role in evolutionary theory, but the identity of the underlying mechanisms remains a puzzle. Oxidative stress has been hypothesized to be a proximate mechanism that may explain the cost of reproduction. We examine three pathways by which oxidative stress could shape reproduction. The “oxidative cost” hypothesis proposes that reproductive effort generates oxidative stress, while the “oxidative constraint” and “oxidative shielding” hypotheses suggest that mothers mitigate such costs through reducing reproductive effort or by pre‐emptively decreasing damage levels, respectively. We tested these three mechanisms using data from a long‐term food provisioning experiment on wild female banded mongooses (Mungos mungo). Our results show that maternal supplementation did not influence oxidative stress levels, or the production and survival of offspring. However, we found that two of the oxidative mechanisms co‐occur during reproduction. There was evidence of an oxidative challenge associated with reproduction that mothers attempted to mitigate by reducing damage levels during breeding. This mitigation is likely to be of crucial importance, as long‐term offspring survival was negatively impacted by maternal oxidative stress. This study demonstrates the value of longitudinal studies of wild animals in order to highlight the interconnected oxidative mechanisms that shape the cost of reproduction.
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Affiliation(s)
- Magali Meniri
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Elsa Evans
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Faye J. Thompson
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Harry H. Marshall
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
- Whitelands College Centre for Research in Ecology, Evolution & Behaviour University of Roehampton London UK
| | | | - Gina Lewis
- Department of Biosciences Swansea University Swansea UK
| | - Lauren Holt
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Emma Davey
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Christopher Mitchell
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | | | - Michael A. Cant
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
| | - Jonathan D. Blount
- College of Life & Environmental Sciences Centre for Ecology & Conservation University of Exeter Penryn UK
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15
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Covas R, Lardy S, Silva LR, Rey B, Ferreira AC, Theron F, Tognetti A, Faivre B, Doutrelant C. The oxidative cost of helping and its minimization in a cooperative breeder. Behav Ecol 2022. [DOI: 10.1093/beheco/arab152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Abstract
Cooperative actions are beneficial to the group, but presumably costly to the individual co-operators. In cooperatively breeding species, helping to raise young is thought to involve important energetic costs, which could lead to elevated exposure to reactive oxygen species, resulting in oxidative stress. However, identifying such costs can be difficult if individuals adjust their investment in helping in relation to environmental conditions or their own physiological condition. Experimental approaches are therefore required to quantify the costs of helping but, to date, these have been infrequent. Here, we combined correlational and experimental data to investigate the oxidative cost of helping-at-the-nest and how this affects helping decisions in wild sociable weavers Philetairus socius, a colonial cooperatively breeding bird. At the correlational level, we found that the probability of helping was influenced by the interaction of an individual’s oxidative state and age: compared to younger birds, older individuals were more likely to help when they had higher oxidative damage, and the opposite trend was found for younger individuals. After experimentally increasing the energetic cost of flight, manipulated helpers in breeding colonies decreased nestling feeding rates and incurred an increase in oxidative damage, which was not present in manipulated helpers in non-breeding colonies. This indicates that individuals decreased their helping behavior to minimize the associated costs. These results suggest that oxidative stress can influence helping decisions and underlie a trade-off between cooperation and self-maintenance, which is central to understanding when helping might take place in this and other species.
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Affiliation(s)
- Rita Covas
- CIBIO-InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
| | - Sophie Lardy
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
- Biogéosciences, CNRS UMR 6282, Université de Bourgogne Franche-Comté, 6 Bd Gabriel, 21000 Dijon, France
| | - Liliana R Silva
- CIBIO-InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
| | - Benjamin Rey
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive, UMR5558, F-69000 Villeurbanne, France
| | - André C Ferreira
- CIBIO-InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Centre d’Ecologie Fonctionnelle et Evolutive, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul-Valery Montpellier 3, Montpellier, France
| | - Franck Theron
- CIBIO-InBio, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, University of Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661 Vairão, Portugal
- Centre d’Ecologie Fonctionnelle et Evolutive, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul-Valery Montpellier 3, Montpellier, France
| | - Arnaud Tognetti
- Institute for Advanced Study in Toulouse, 1, esplanade de l’Université, 31080 Toulouse Cedex 06, France
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Bruno Faivre
- Biogéosciences, CNRS UMR 6282, Université de Bourgogne Franche-Comté, 6 Bd Gabriel, 21000 Dijon, France
| | - Claire Doutrelant
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa
- Centre d’Ecologie Fonctionnelle et Evolutive, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul-Valery Montpellier 3, Montpellier, France
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16
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French SS, Webb AC, Wilcoxen TE, Iverson JB, DeNardo DF, Lewis EL, Knapp CR. Complex tourism and season interactions contribute to disparate physiologies in an endangered rock iguana. CONSERVATION PHYSIOLOGY 2022; 10:coac001. [PMID: 35492404 PMCID: PMC9040281 DOI: 10.1093/conphys/coac001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/01/2021] [Accepted: 01/05/2022] [Indexed: 06/04/2023]
Abstract
To promote survival and fitness, organisms use a suite of physiological systems to respond to both predictable and unpredictable changes in the environment. These physiological responses are also influenced by changes in life history state. The continued activation of physiological systems stemming from persistent environmental perturbations enable animals to cope with these challenges but may over time lead to significant effects on the health of wildlife. In the present study, we tested how varying environmental perturbations driven by tourism and associated supplemental feeding affects the energetics, corticosterone and immunity of six discrete populations of the northern Bahamian rock iguana (Cyclura cychlura inornata and Cyclura cychlura figginsi). We studied populations within and outside the reproductive season and quantified tourist numbers during sample collection. Specifically, we measured clutch size, body condition, plasma energy metabolites, reactive oxygen species, baseline corticosterone concentrations and immune function of male and female iguanas from each population to address whether (i) disparate physiologies are emerging across a gradient of tourism and feeding, (ii) both subspecies respond similarly and (iii) responses vary with season/reproductive condition. We found significant effects of tourism level, season and their interaction on the physiology of both C. c. inornata and C. c. figginsi, supporting the idea that tourism is leading to the divergence of phenotypes. Specifically, we found elevated plasma energy metabolites, oxidative stress and a measure of innate immunity (bactericidal ability), but reduced corticosterone concentrations with increasing tourism in both subspecies of rock iguanas. These physiological metrics differ according to the level of tourism in both subspecies and persist across seasons despite variation with natural seasonal and reproductive changes. These findings suggest that anthropogenic disturbance results in disparate physiologies in northern Bahamian rock iguanas.
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Affiliation(s)
- Susannah S French
- Corresponding author: Department of Biology, Utah State University, Logan, UT, USA. Tel: (435)797-9175.
| | | | | | - John B Iverson
- Department of Biology, Earlham College, Richmond, IN 47374, USA
| | - Dale F DeNardo
- School of Life Sciences, Arizona State University, Tempe, AZ 85281, USA
| | - Erin L Lewis
- Department of Biology, Utah State University, Logan, UT 84322, USA
- Ecology Center, Utah State University, Logan, UT 84322, USA
| | - Charles R Knapp
- Daniel P. Haerther Center for Conservation and Research, John G. Shedd Aquarium, Chicago, IL 60605, USA
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17
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Degut A, Fischer K, Quque M, Criscuolo F, Michalik P, Beaulieu M. Irreversible impact of early thermal conditions: an integrative study of developmental plasticity linked to mobility in a butterfly species. J Exp Biol 2022; 225:273908. [PMID: 34989809 DOI: 10.1242/jeb.243724] [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: 10/29/2021] [Accepted: 12/23/2021] [Indexed: 11/20/2022]
Abstract
Within populations, phenotypic plasticity may allow adaptive phenotypic variation in response to selection generated by environmental heterogeneity. For instance, in multivoltine species, seasonal changes between and within generations may trigger morphological and physiological variation enhancing fitness under different environmental conditions. These seasonal changes may irreversibly affect adult phenotypes when experienced during development. Yet, the irreversible effects of developmental plasticity on adult morphology have rarely been linked to life-history traits even though they may affect different fitness components such as reproduction, mobility and self-maintenance. To address this issue, we raised larvae of Pieris napi butterflies under warm or cool conditions to subsequently compare adult performance in terms of reproduction performance (as assessed through fecundity), displacement capacity (as assessed through flight propensity and endurance) and self-maintenance (as assessed through the measurement of oxidative markers). As expected in ectotherms, individuals developed faster under warm conditions and were smaller than individuals developing under cool conditions. They also had more slender wings and showed a higher wing surface ratio. These morphological differences were associated with changes in the reproductive and flight performances of adults, as individuals developing under warm conditions laid fewer eggs and flew larger distances. Accordingly, the examination of their oxidative status suggested that individuals developing under warm conditions invested more strongly into self-maintenance than individuals developing under cool conditions (possibly at the expense of reproduction). Overall, our results indicate that developmental conditions have long-term consequences on several adult traits in butterflies. This plasticity likely acts on life history strategies for each generation to keep pace with seasonal variations and may facilitate acclimation processes in the context of climate change.
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Affiliation(s)
- Anaïs Degut
- Zoological Institute and Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany
| | - Klaus Fischer
- Zoological Institute and Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany.,Institute for Integrated Sciences, University of Koblenz-Landau, Universität Str. 1, 56070 Koblenz, Germany
| | - Martin Quque
- Institut Pluridisciplinaire Hubert Curien
- IPHC · Department of Ecology, Physiology and Ethology, Strasbourg, France
| | - François Criscuolo
- Institut Pluridisciplinaire Hubert Curien
- IPHC · Department of Ecology, Physiology and Ethology, Strasbourg, France
| | - Peter Michalik
- Zoological Institute and Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany
| | - Michaël Beaulieu
- Zoological Institute and Museum, University of Greifswald, Loitzer Str. 26, 17489 Greifswald, Germany.,German Oceanographic Museum, Katharinenberg 14-20, 18439 Stralsund, Germany
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18
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Ruiz-Raya F. Ecophysiology of egg rejection in hosts of avian brood parasites: new insights and perspectives. Curr Zool 2021; 67:631-638. [PMID: 34805540 PMCID: PMC8599070 DOI: 10.1093/cz/zoab042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/09/2021] [Indexed: 12/11/2022] Open
Abstract
Egg rejection is the most effective and widespread defense used by host species to counteract the extreme fitness costs frequently imposed by obligate avian brood parasites. Yet, the proximate mechanisms underlying between- and within-individual variation in host responses remain poorly explored. Emerging evidence suggests that egg rejection is dependent on individual physiological states, and draws attention to the role of hormones as mediators of flexible antiparasitic responses. In this perspective article, I outline recent advances in our understanding of the proximate factors that mediate egg rejection. I also point out some areas where knowledge remains still lacking, especially those related to the development and maintenance of effective cognitive functions, the potential role of oxidative stress, immunological state, and developmental stressors. I propose new hypotheses that stimulate future research on behavioral host responses toward brood parasitism.
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Affiliation(s)
- Francisco Ruiz-Raya
- Centro de Investigación Mariña, Universidade de Vigo, GEA, Vigo 36310, Spain
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19
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Douhard F, Douhard M, Gilbert H, Monget P, Gaillard J, Lemaître J. How much energetic trade-offs limit selection? Insights from livestock and related laboratory model species. Evol Appl 2021; 14:2726-2749. [PMID: 34950226 PMCID: PMC8674892 DOI: 10.1111/eva.13320] [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] [Received: 07/01/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 12/22/2022] Open
Abstract
Trade-offs between life history traits are expected to occur due to the limited amount of resources that organisms can obtain and share among biological functions, but are of least concern for selection responses in nutrient-rich or benign environments. In domestic animals, selection limits have not yet been reached despite strong selection for higher meat, milk or egg yields. Yet, negative genetic correlations between productivity traits and health or fertility traits have often been reported, supporting the view that trade-offs do occur in the context of nonlimiting resources. The importance of allocation mechanisms in limiting genetic changes can thus be questioned when animals are mostly constrained by their time to acquire and process energy rather than by feed availability. Selection for high productivity traits early in life should promote a fast metabolism with less energy allocated to self-maintenance (contributing to soma preservation and repair). Consequently, the capacity to breed shortly after an intensive period of production or to remain healthy should be compromised. We assessed those predictions in mammalian and avian livestock and related laboratory model species. First, we surveyed studies that compared energy allocation to maintenance between breeds or lines of contrasting productivity but found little support for the occurrence of an energy allocation trade-off. Second, selection experiments for lower feed intake per unit of product (i.e. higher feed efficiency) generally resulted in reduced allocation to maintenance, but this did not entail fitness costs in terms of survival or future reproduction. These findings indicate that the consequences of a particular selection in domestic animals are much more difficult to predict than one could anticipate from the energy allocation framework alone. Future developments to predict the contribution of time constraints and trade-offs to selection limits will be insightful to breed livestock in increasingly challenging environments.
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Affiliation(s)
| | - Mathieu Douhard
- Laboratoire de Biométrie & Biologie EvolutiveCNRSUMR 5558Université Lyon 1VilleurbanneFrance
| | - Hélène Gilbert
- GenPhySEINRAEENVTUniversité de ToulouseCastanet‐TolosanFrance
| | | | - Jean‐Michel Gaillard
- Laboratoire de Biométrie & Biologie EvolutiveCNRSUMR 5558Université Lyon 1VilleurbanneFrance
| | - Jean‐François Lemaître
- Laboratoire de Biométrie & Biologie EvolutiveCNRSUMR 5558Université Lyon 1VilleurbanneFrance
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20
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Jacobs PJ, Hart DW, Suess T, Janse van Vuuren AK, Bennett NC. The Cost of Reproduction in a Cooperatively Breeding Mammal: Consequences of Seasonal Variation in Rainfall, Reproduction, and Reproductive Suppression. Front Physiol 2021; 12:780490. [PMID: 34867486 PMCID: PMC8640211 DOI: 10.3389/fphys.2021.780490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/01/2021] [Indexed: 12/31/2022] Open
Abstract
Biological investments, such as reproduction, are influenced by both biotic and abiotic factors and their interactions. The trade-off between reproduction and survival has been well established. Seasonally breeding species, therefore, may exhibit variations in these trade-offs, but there is a dearth of knowledge concerning this. This study investigated the physiological cost of reproduction (measured through oxidative stress) across seasons in the cooperatively breeding highveld mole-rat (Cryptomys hottentotus pretoriae), one of the few seasonal breeding mole-rats. Oxidative stress indicates elevated reactive oxygen species (ROS) levels, which can overwhelm antioxidant defences resulting in damaged proteins, lipids and DNA, which overall can reduce longevity and compromise reproduction. Oxidative markers such as total oxidant status (TOS-measure of total peroxides present), total antioxidant capacity (TAC), oxidative stress index (OSI), and malondialdehyde (MDA) are utilised to measure oxidative stress. In this study, breeding and non-breeding male (NBM) and female mole-rats were captured during the dry season (breeding period) and wet season (non-breeding period). There was an apparent cost of reproduction in the highveld mole-rat; however, the seasonality pattern to the cost of reproduction varied between the sexes. Breeding females (BFs) had significantly higher MDA during the breeding period/dry season in comparison to the non-breeding period/wet season; this is possibly a consequence of bearing and nursing offspring. Contrastingly, breeding males (BMs) showed increased oxidative damage in the non-breeding/wet season compared to the breeding/dry season, possibly due to increased activities of protecting their mating rights for the next breeding/dry season, but this was not significant. Interestingly, during the non-breeding period/wet season, non-breeding females (NBFs) are released from their reproductive suppression, which resulted in increases in TOS and OSI, which again indicated that just the mere ability to be able to breed results in a cost (oxidative stress). Therefore we can speculate that highveld mole-rats exhibited seasonal variation in redox balance brought about by variation in abiotic variables (e.g., rainfall), physiology and behaviour. We conclude that physiological changes associated with reproduction are sufficient to induce significant acute oxidative stress in the plasma of female highveld mole-rats, which become alleviated following transition to the non-breeding season/wet period suggesting a possible hormetic effect.
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21
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Border SE, Piefke TJ, Funnell TR, Fialkowski RF, Sawecki J, Dijkstra PD. Social instability influences rank-specific patterns of oxidative stress in a cichlid fish. J Exp Biol 2021; 224:272109. [PMID: 34495308 DOI: 10.1242/jeb.237172] [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: 09/07/2020] [Accepted: 09/01/2021] [Indexed: 01/13/2023]
Abstract
In many animal societies, dominant individuals have priority access to resources. However, defending high rank can be costly, especially in unstable social hierarchies where there is more intense competition. Oxidative stress has been proposed as a potential cost of social dominance, but few studies have examined this cost in relation to social stability. We studied the cost of social dominance in the cichlid fish Astatotilapia burtoni by manipulating social stability among males in replicate naturalistic communities for 22 weeks. We found that our social stability treatment influenced status-specific patterns in 3 out of 6 measurements of oxidative stress. Specifically, dominant males experienced increased plasma oxidative damage (measured as reactive oxygen metabolites, ROMs) compared with subordinate males in stable hierarchies only. Subordinate males in unstable hierarchies had higher ROMs than their stable community counterparts, but we found no effect of social stability treatment for dominant males. However, dominant males tended to have reduced total antioxidant capacity (TAC) in the liver when compared with subordinate males in unstable hierarchies, suggesting that the cost of social dominance is higher in unstable hierarchies. There were no effects of status and treatment on gonad TAC, muscle TAC or oxidative DNA damage. We conclude that the stability of the social environment influences the relative cost of social dominance in a tissue- and marker-specific manner.
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Affiliation(s)
- Shana E Border
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA.,School of Biological Sciences, Illinois State University, Normal, IL 61790, USA
| | - Taylor J Piefke
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA
| | - Tyler R Funnell
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA.,Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Robert F Fialkowski
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA
| | - Jacob Sawecki
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA.,Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Peter D Dijkstra
- Central Michigan University, Department of Biology, Mount Pleasant, MI 48859, USA.,Neuroscience Program, Central Michigan University, Mount Pleasant, MI 48859, USA.,Institute for Great Lakes Research, Central Michigan University, Mount Pleasant, MI 48859, USA
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22
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Funnell TR, Fialkowski RJ, Dijkstra PD. Social dominance does not increase oxidative stress in a female dominance hierarchy of an African cichlid fish. Ethology 2021. [DOI: 10.1111/eth.13232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tyler R. Funnell
- Department of Biology Central Michigan University Mount Pleasant MI USA
- Quantitative Fisheries Center Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | | | - Peter D. Dijkstra
- Department of Biology Central Michigan University Mount Pleasant MI USA
- Neuroscience Program Central Michigan University Mount Pleasant MI USA
- Institute for Great Lakes Research Central Michigan University Mount Pleasant MI USA
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23
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Jacobs PJ, Hart DW, Bennett NC. Plasma oxidative stress in reproduction of two eusocial African mole-rat species, the naked mole-rat and the Damaraland mole-rat. Front Zool 2021; 18:45. [PMID: 34535150 PMCID: PMC8447654 DOI: 10.1186/s12983-021-00430-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022] Open
Abstract
One of the most prominent life-history trade-offs involves the cost of reproduction. Oxidative stress has been proposed to be involved in this trade-off and has been associated with reduced life span. There is currently an unclear relationship between oxidative cost and the reproduction-longevity trade-off. The current study, using a non-lethal and minimally invasive (only a single blood sample and no euthanasia) method, investigated whether an oxidative cost (oxidative stress) to reproduction would be apparent in two long-lived eusocial mole-rats, the naked mole-rat (NMR), Heterocephalus glaber, and the Damaraland mole-rat (DMR), Fukomys damarensis, where breeding colony members live longer than non-breeder conspecifics. We measured the direct redox balance in plasma by measuring the oxidative stress index (OSI) based on the ratio of total oxidant status and total antioxidant activity in breeders and non-breeders of both sexes, in the two species. NMR had significantly higher OSI between breeders and non-breeders of each sex, whereas DMR showed no significant differences except for total antioxidant capacity (TAC). The mode of reproductive suppression and the degree of reproductive investment in NMR may explain to some degree the redox balance difference between breeders and non-breeders. DMR show minimal physiological changes between breeders and non-breeders except for the mode of reproduction, which may explain some variations in TAC and TOS values, but similar OSI between breeders and non-breeders.
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Affiliation(s)
- Paul Juan Jacobs
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria, 0002, South Africa.
| | - Daniel William Hart
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria, 0002, South Africa
| | - Nigel Charles Bennett
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Pretoria, 0002, South Africa
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Shi Y, Meng X, Zhang J. Multi- and trans-generational effects of N-butylpyridium chloride on reproduction, lifespan, and pro/antioxidant status in Caenorhabditis elegans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146371. [PMID: 34030357 DOI: 10.1016/j.scitotenv.2021.146371] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/16/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Ionic liquids (ILs) became emerging pollutants. Their poor degradation and accumulation in organisms urged studies on the long-term effects and also the underlying mechanisms. Currently, 1-butylpyrinium chloride ([bpyr]Cl) was chosen to represent the pyridine-based ILs. Its multi-generational effects were measured on C. elegans for 14 consecutive generations (F1 to F14), and the trans-generational effects were also measured in the great-grand-children (T3 and T3') of F1 and F14. The multi-generational results from F1 to F14 showed that the effects of [bpyr]Cl on the initial and total reproduction and lifespan showed oscillation between inhibition and stimulation. Notably, hormetic effects on reproduction were observed in F7 to F10. The trans-generational effects in T3 and T3' showed different residual consequences between one generational exposure (F1) and multiple generational exposure (F14). Further biochemical analysis showed that the pro/antioxidant status also showed oscillation between inhibition and stimulation. The oscillation levels were greater in superoxide dismutase (SOD), catalase (CAT) and protein carbonyl content (PC) than those in glutathione peroxidase (GSH-Px), reactive oxygen species (ROS) and hydroxyl radical (OH). The pro/antioxidant status contributed to both multi- and trans-generational effects of [bpyr]Cl. Future studies should pay attentions to the long-term influence of ILs and also epigenetic explanations.
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Affiliation(s)
- Yang Shi
- College of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 201418, PR China; Jiaxing Tongji Institute for Environment, Jiaxing, Zhejiang 314051, PR China
| | - Xiangzhou Meng
- Jiaxing Tongji Institute for Environment, Jiaxing, Zhejiang 314051, PR China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Jing Zhang
- College of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 201418, PR China.
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Reproductive Stage and Clutch Size Incur Energetic and Oxidative Costs in an Endangered Iguana, Ctenosaura oedirhina. J HERPETOL 2021. [DOI: 10.1670/20-099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hou C, Metcalfe NB, Salin K. Is mitochondrial reactive oxygen species production proportional to oxygen consumption? A theoretical consideration. Bioessays 2021; 43:e2000165. [PMID: 33543487 DOI: 10.1002/bies.202000165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 12/19/2020] [Accepted: 01/12/2021] [Indexed: 11/07/2022]
Abstract
It has been assumed that at the whole organismal level, the mitochondrial reactive oxygen species (ROS) production is proportional to the oxygen consumption. Recently, a number of researchers have challenged this assumption, based on the observation that the ROS production per unit oxygen consumed in the resting state of mitochondrial respiration is much higher than that in the active state. Here, we develop a simple model to investigate the validity of the assumption and the challenge of it. The model highlights the significance of the time budget that mitochondria operate in the different respiration states. The model suggests that under three physiologically possible conditions, the difference in ROS production per unit oxygen consumed between the respiration states does not upset the proportionality between the whole animal ROS production and oxygen consumption. The model also shows that mitochondrial uncoupling generally enhances the proportionality.
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Affiliation(s)
- Chen Hou
- Department of Biological Sciences, Missouri University of Science and Technology, Rolla, Missouri, USA
| | - Neil B Metcalfe
- Institute of Biodiversity, Animal Health and Comparative Medicine, Graham Kerr Building, University of Glasgow, Glasgow, UK
| | - Karine Salin
- Department of Environment and Resources, Institut français de recherche pour l'exploitation de la mer, Plouzané, France
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Zhang Y, Hill GE, Ge Z, Park NR, Taylor HA, Andreasen V, Tardy L, Kavazis AN, Bonneaud C, Hood WR. Effects of a Bacterial Infection on Mitochondrial Function and Oxidative Stress in a Songbird. Physiol Biochem Zool 2021; 94:71-82. [PMID: 33399516 DOI: 10.1086/712639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractAs a major physiological mechanism involved in cellular renewal and repair, immune function is vital to the body's capacity to support tissue maintenance and organismal survival. Because immune defenses can be energetically expensive, the activities of metabolically active organs, such as the liver, are predicted to increase during infection by most pathogens. However, some pathogens are immunosuppressive, which might reduce the metabolic capacities of select organs to suppress immune response. Mycoplasma gallisepticum (MG) is a well-known immunosuppressive bacterium that infects domestic chickens and turkeys as well as songbirds. In the house finch (Haemorhous mexicanus), which is the primary host for MG among songbird species, MG infects both the respiratory system and the conjunctiva of the eye, causing conspicuous swelling. To study the effect of a systemic bacterial infection on cellular respiration and oxidative damage in the house finch, we measured mitochondrial respiration, mitochondrial membrane potential, reactive oxygen species production, and oxidative damage in the livers of house finches that were wild caught and either infected with MG, as indicated by genetic screening for the pathogen, or free of MG infection. We observed that MG-infected house finches showed significantly lower oxidative lipid and protein damage in liver tissue compared with their uninfected counterparts. Moreover, using complex II substrates, we documented a nonsignificant trend for lower state 3 respiration of liver mitochondria in MG-infected house finches compared with uninfected house finches (P=0.07). These results are consistent with the hypothesis that MG suppresses organ function in susceptible hosts.
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Dezetter M, Le Galliard JF, Guiller G, Guillon M, Leroux-Coyau M, Meylan S, Brischoux F, Angelier F, Lourdais O. Water deprivation compromises maternal physiology and reproductive success in a cold and wet adapted snake Vipera berus. CONSERVATION PHYSIOLOGY 2021; 9:coab071. [PMID: 34512993 PMCID: PMC8415537 DOI: 10.1093/conphys/coab071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/16/2021] [Accepted: 08/05/2021] [Indexed: 05/05/2023]
Abstract
Droughts are becoming more intense and frequent with climate change. These extreme weather events can lead to mass mortality and reproduction failure, and therefore cause population declines. Understanding how the reproductive physiology of organisms is affected by water shortages will help clarify whether females can adjust their reproductive strategy to dry conditions or may fail to reproduce and survive. In this study, we investigated the consequences of a short period of water deprivation (2 weeks) during early pregnancy on the physiology and behaviour of a cold- and wet-adapted ectotherm (Vipera berus). We also examined water allocation to developing embryos and embryonic survival. Water-deprived females exhibited significant dehydration, physiological stress and loss of muscle mass. These effects of water deprivation on water balance and muscle loss were correlated with the number of developing embryos. While water-deprived females maintained water transfer to embryos at the expense of their own maintenance, water deprivation also led to embryonic mortality. Overall, water deprivation amplifies the reproductive costs of water allocation to support embryonic development. The deleterious impacts of water deprivation on female current reproductive performance and on potential survival and future reproduction could lead to severe population declines in this species.
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Affiliation(s)
- Mathias Dezetter
- Sorbonne University, CNRS, IRD, INRA, Institut d’Écologie et des Sciences de l’Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France
- Centre d’Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France
- Corresponding author: Centre d’Étude Biologique de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France. Tel: + 33 (0) 5 49 09 35 52. Fax: + 33 (0) 5 49 09 65 26.
| | - Jean François Le Galliard
- Sorbonne University, CNRS, IRD, INRA, Institut d’Écologie et des Sciences de l’Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France
- Ecole Normale Supérieure, PSL University, Département de Biologie, CNRS, UMS 3194, Centre de Recherche en Écologie Expérimentale et Prédictive (CEREEP-Ecotron IleDeFrance), 11 Chemin de Busseau, 77140 Saint-Pierre lès-Nemours, France
| | | | - Michaël Guillon
- Centre d’Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France
| | - Mathieu Leroux-Coyau
- Sorbonne University, CNRS, IRD, INRA, Institut d’Écologie et des Sciences de l’Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France
| | - Sandrine Meylan
- Sorbonne University, CNRS, IRD, INRA, Institut d’Écologie et des Sciences de l’Environnement (iEES Paris), 4 Place Jussieu, 75252 Paris Cedex 5, France
- INSPE de Paris, Université Sorbonne, 10 rue Molitor, 75016 Paris, France
| | - François Brischoux
- Centre d’Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France
| | - Fréderic Angelier
- Centre d’Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France
| | - Olivier Lourdais
- Centre d’Études Biologiques de Chizé CNRS, UMR 7372, 79360 Villiers en Bois, France
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA
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Álvarez‐Quintero N, Velando A, Noguera JC, Kim S. Environment-induced changes in reproductive strategies and their transgenerational effects in the three-spined stickleback. Ecol Evol 2021; 11:771-783. [PMID: 33520165 PMCID: PMC7820166 DOI: 10.1002/ece3.7052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 01/10/2023] Open
Abstract
An organism may increase its fitness by changing its reproductive strategies in response to environmental cues, but the possible consequences of those changes for the next generation have rarely been explored. By using an experiment on the three-spined stickleback (Gasterosteus aculeatus), we studied how changes in the onset of breeding photoperiod (early versus late) affect reproductive strategies of males and females, and life histories of their offspring. We also explored whether telomeres are involved in the within- and transgenerational effects. In response to the late onset of breeding photoperiod, females reduced their investment in the early clutches, but males increased their investment in sexual signals. Costs of increased reproductive investment in terms of telomere loss were evident only in the late females. The environmentally induced changes in reproductive strategies affected offspring growth and survival. Most notably, offspring growth rate was the fastest when both parents experienced a delayed (i.e., late) breeding photoperiod, and survival rate was the highest when both parents experienced an advanced (i.e., early) breeding photoperiod. There was no evidence of transgenerational effects on offspring telomere length despite positive parents-offspring relationships in this trait. Our results highlight that environmental changes may impact more than one generation by altering reproductive strategies of seasonal breeders with consequences for offspring viability.
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Affiliation(s)
- Náyade Álvarez‐Quintero
- Grupo Ecoloxía Animal (Lab 97)Torre CACTICentro de Investigación MariñaUniversidade de VigoVigoSpain
| | - Alberto Velando
- Grupo Ecoloxía Animal (Lab 97)Torre CACTICentro de Investigación MariñaUniversidade de VigoVigoSpain
| | - Jose C. Noguera
- Grupo Ecoloxía Animal (Lab 97)Torre CACTICentro de Investigación MariñaUniversidade de VigoVigoSpain
| | - Sin‐Yeon Kim
- Grupo Ecoloxía Animal (Lab 97)Torre CACTICentro de Investigación MariñaUniversidade de VigoVigoSpain
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Thompson K, Quanjer B, Murkens M. Grow fast, die young? The causes and consequences of adult height and prolonged growth in nineteenth century Maastricht. Soc Sci Med 2020; 266:113430. [DOI: 10.1016/j.socscimed.2020.113430] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022]
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Sancilio A, Jasienska G, Panter-Brick C, Ziomkiewicz A, Nenko I, Bribiescas RG. Accelerated senescence as a cost of reproduction: Testing associations between oxidative stress and reproductive effort in rural and urban women. Am J Hum Biol 2020; 33:e23537. [PMID: 33190335 DOI: 10.1002/ajhb.23537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES Oxidative stress is hypothesized to contribute to age-related somatic deterioration. Both reproductive and ecological context may necessitate tradeoffs that influence this outcome. We examined whether measures of lifetime reproductive effort were related to levels of oxidative stress biomarkers in peri- and post-menopausal women and whether associations were moderated by rural or urban residence. METHODS We surveyed 263 healthy women (age 62.1 ± 10.0 SD) from rural (N = 161) and urban Poland (N = 102), collecting sociodemographic data and urine samples to analyze biomarkers of oxidative stress (8-oxo-2'-deoxyguanosine, 8-OHdG) and antioxidative defense (copper-zinc superoxide dismutase, Cu-Zn SOD). Linear regression models, adjusted for residence, were used to test for associations between reproductive effort and 8-OHdG and Cu-Zn SOD. RESULTS Univariate models demonstrated significant associations between gravidity and the biomarkers of oxidative stress (8-OHdG: R2 = 0.042, P ≤ .001; Cu-Zn SOD: R2 = 0.123, P ≤ .001). Multivariate models incorporating potential confounding variables, as well as cross-product interaction terms, indicated that gravidity was associated with 8-OHdG (P < .01, R2 adj = 0.067) and Cu-Zn SOD (P = .01, R2 adj = 0.159). Residence (ie, urban vs rural) did not significantly moderate the associations between the biomarkers and reproductive effort. CONCLUSIONS Higher lifetime reproductive effort contributes to increases in oxidative stress and antioxidative defenses. Our results provide evidence of potential mechanisms underlying the physiological tradeoffs influencing senescence for women with high reproductive effort. We illustrate the value of applying an evolutionary perspective to elucidate variation in human health and senescence.
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Affiliation(s)
- Amelia Sancilio
- Center for Health and the Social Sciences, University of Chicago, Chicago, Illinois, USA.,Department of Anthropology, Yale University, New Haven, Connecticut, USA
| | - Grazyna Jasienska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Kraków, Poland
| | | | - Anna Ziomkiewicz
- Department of Anthropology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Krakow, Poland.,Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Ilona Nenko
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Kraków, Poland
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32
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Zhao W, Yuan T, Fu Y, Niu D, Chen W, Chen L, Lu L. Seasonal differences in the transcriptome profile of the Zhedong white goose (Anser cygnoides) pituitary gland. Poult Sci 2020; 100:1154-1166. [PMID: 33518074 PMCID: PMC7858147 DOI: 10.1016/j.psj.2020.10.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 11/30/2022] Open
Abstract
In animals, the adaptation to breed at the time of greatest survival of the young is known as seasonal reproduction. This is mainly controlled by the photoperiod, which stimulates the hypothalamic-pituitary-gonadal axis and starts the breeding season. Herein, we have determined the seasonal changes in gene expression patterns of Zhedong white geese pituitary glands under a natural photoperiodism, conducted at autumn equinox (AE), winter solstice (WS), spring equinox (SE), and summer solstice (SS). Pairwise comparisons of WS vs. AE, SE vs. WS, SS vs. SE, and AE vs. SS resulted in 1,139, 33, 704, and 3,503 differently expressed genes, respectively. When compared with SS, AE showed downregulation of genes, such as vasoactive intestinal peptide receptor, prolactin receptor, and thyroid hormone receptor beta, whereas gonadotropin-releasing hormone II receptor was upregulated, indicating that these genes may be responsible for the transition from cessation to egg laying. In addition, the expression levels of 5 transcription factors (POU1F1, Pitx2, NR5A1, NR4A2, and SREBF2) and 6 circadian clock-associated genes (Clock, Per2, ARNTL2, Eya3, Dio2, and NPAS2) also changed seasonally. Gene Ontology term and Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that “response to oxidative stress” and steroid biosynthesis pathway also participate in regulating the reproduction seasonality of geese. Overall, these results contribute to the identification of genes involved in seasonal reproduction, enabling a better understanding of the molecular mechanism underlying seasonal reproduction of geese.
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Affiliation(s)
- Wanqiu Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Taoyan Yuan
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China; Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yan Fu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dong Niu
- College of Animal Science and Technology, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Hangzhou 311300, Zhejiang, China
| | - Weihu Chen
- Department of Animal Husbandry and Veterinary, Xiangshan County Agricultural and Rural Bureau, Ningbo 315700, China
| | - Li Chen
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Lizhi Lu
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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Romero-Haro AA, Alonso-Alvarez C. Oxidative Stress Experienced during Early Development Influences the Offspring Phenotype. Am Nat 2020; 196:704-716. [PMID: 33211561 DOI: 10.1086/711399] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractOxidative stress (OS) experienced early in life can affect an individual's phenotype. However, its consequences for the next generation remain largely unexplored. We manipulated the OS level endured by zebra finches (Taeniopygia guttata) during their development by transitorily inhibiting the synthesis of the key antioxidant glutathione ("early-high-OS"). The offspring of these birds and control parents were cross fostered at hatching to enlarge or reduce its brood size. Independent of parents' early-life OS levels, the chicks raised in enlarged broods showed lower erythrocyte glutathione levels, revealing glutathione sensitivity to environmental conditions. Control biological mothers produced females, not males, that attained a higher body mass when raised in a benign environment (i.e., the reduced brood). In contrast, biological mothers exposed to early-life OS produced heavier males, not females, when allocated in reduced broods. Early-life OS also affected the parental rearing capacity because 12-day-old nestlings raised by a foster pair with both early-high-OS members grew shorter legs (tarsus) than chicks from other groups. The results indicate that environmental conditions during development can affect early glutathione levels, which may in turn influence the next generation through both pre- and postnatal parental effects. The results also demonstrate that early-life OS can constrain the offspring phenotype.
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González NT, Otali E, Machanda Z, Muller MN, Wrangham R, Thompson ME. Urinary markers of oxidative stress respond to infection and late-life in wild chimpanzees. PLoS One 2020; 15:e0238066. [PMID: 32916689 PMCID: PMC7486137 DOI: 10.1371/journal.pone.0238066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress (OS) plays a marked role in aging and results from a variety of stressors, making it a powerful measure of health and a way to examine costs associated with life history investments within and across species. However, few urinary OS markers have been examined under field conditions, particularly in primates, and their utility to non-invasively monitor the costs of acute stressors versus the long-term damage associated with aging is poorly understood. In this study, we examined variation in 5 urinary markers of oxidative damage and protection under 5 validation paradigms for 37 wild, chimpanzees living in the Kibale National Park, Uganda. We used 924 urine samples to examine responses to acute immune challenge (respiratory illness or severe wounding), as well as mixed-longitudinal and intra-individual variation with age. DNA damage (8-OHdG) correlated positively with all other markers of damage (F-isoprostanes, MDA-TBARS, and neopterin) but did not correlate with protection (total antioxidant capacity). Within individuals, all markers of damage responded to at least one if not both types of acute infection. While OS is expected to increase with age, this was not generally true in chimpanzees. However, significant changes in oxidative damage were detected within past-prime individuals and those close to death. Our results indicate that OS can be measured using field-collected urine and integrates short- and long-term aspects of health. They further suggest that more data are needed from long-lived, wild animals to illuminate if common age-related increases in inflammation and OS damage are typical or recently aberrant in humans.
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Affiliation(s)
- Nicole Thompson González
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- University of New Mexico, Academic Science Education and Research Training Program, Health Sciences Center, Albuquerque, NM, United States of America
- * E-mail:
| | - Emily Otali
- Kibale Chimpanzee Project, Fort Portal, Uganda
| | - Zarin Machanda
- Kibale Chimpanzee Project, Fort Portal, Uganda
- Tufts University, Department of Anthropology, Medford, MA, United States of America
| | - Martin N. Muller
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- Kibale Chimpanzee Project, Fort Portal, Uganda
| | - Richard Wrangham
- Kibale Chimpanzee Project, Fort Portal, Uganda
- Harvard University, Department of Human Evolutionary Biology, Cambridge, MA, United States of America
| | - Melissa Emery Thompson
- University of New Mexico, Department of Anthropology, Albuquerque, NM, United States of America
- Kibale Chimpanzee Project, Fort Portal, Uganda
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Lindsay WR, Friesen CR, Sihlbom C, Bergström J, Berger E, Wilson MR, Olsson M. Vitellogenin offsets oxidative costs of reproduction in female painted dragon lizards. J Exp Biol 2020; 223:jeb221630. [PMID: 32393548 DOI: 10.1242/jeb.221630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 05/05/2020] [Indexed: 12/18/2022]
Abstract
Vitellogenesis ('yolking' of follicles) is a bioenergetically costly stage of reproduction requiring enlargement of the liver to produce vitellogenin (VTG) yolk precursor proteins, which are transported and deposited at the ovary. VTG may, however, serve non-nutritive anti-oxidant functions, a hypothesis supported by empirical work on aging and other life-history transitions in several taxa. We test this hypothesis in female painted dragon lizards (Ctenophorus pictus) by examining covariation in VTG with the ovarian cycle, and relative to reactive oxygen species (ROS) including baseline superoxide (bSO). Plasma VTG decreased prior to ovulation, when VTG is deposited into follicles. VTG, however, remained elevated post-ovulation when no longer necessary for yolk provisioning and was unrelated to reproductive investment. Instead, VTG was strongly and positively predicted by prior bSO. ROS, in turn, was negatively predicted by prior VTG, while simultaneously sampled VTG was a positive predictor. These findings are consistent with the hypothesis that VTG functions as an anti-oxidant to counteract oxidative stress associated with vitellogenesis. The relationship between bSO and VTG was strongest in post-ovulatory females, indicating that its function may be largely anti-oxidant at this time. In conclusion, VTG may be under selection to offset oxidative costs of reproduction in egg-producing species.
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Affiliation(s)
- Willow R Lindsay
- Department of Biological and Environmental Sciences, University of Gothenburg, SE 405 30 Gothenburg, Sweden
| | - Christopher R Friesen
- School of Chemistry and Molecular Bioscience and Molecular Horizons Research Institute, The University of Wollongong, Wollongong, NSW 2522, Australia
| | - Carina Sihlbom
- Proteomics Core Facility of Sahlgrenska Academy, University of Gothenburg, SE 405 30 Gothenburg, Sweden
| | - Jörgen Bergström
- Proteomics Core Facility of Sahlgrenska Academy, University of Gothenburg, SE 405 30 Gothenburg, Sweden
| | - Evelin Berger
- Proteomics Core Facility of Sahlgrenska Academy, University of Gothenburg, SE 405 30 Gothenburg, Sweden
| | - Mark R Wilson
- School of Chemistry and Molecular Bioscience and Molecular Horizons Research Institute, The University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Mats Olsson
- Department of Biological and Environmental Sciences, University of Gothenburg, SE 405 30 Gothenburg, Sweden
- School of Chemistry and Molecular Bioscience and Molecular Horizons Research Institute, The University of Wollongong, Wollongong, NSW 2522, Australia
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Park NR, Taylor HA, Andreasen VA, Williams AS, Niitepõld K, Yap KN, Kavazis AN, Hood WR. Mitochondrial physiology varies with parity and body mass in the laboratory mouse (Mus musculus). J Comp Physiol B 2020; 190:465-477. [PMID: 32506190 DOI: 10.1007/s00360-020-01285-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 05/05/2020] [Accepted: 05/15/2020] [Indexed: 12/27/2022]
Abstract
The life-history patterns that animals display are a product of their ability to maximize reproductive performance while concurrently balancing numerous metabolic demands. For example, the energetic costs of reproduction may reduce an animal's ability to support self-maintenance and longevity. In this work, we evaluated the impact of parity on mitochondrial physiology in laboratory mice. The theory of mitohormesis suggests that modest exposure to reactive oxygen species can improve performance, while high levels of exposure are damaging. Following this theory, we hypothesized that females that experienced one bout of reproduction (primiparous) would display improved mitochondrial capacity and reduced oxidative damage relative to non-reproductive (nulliparous) mice, while females that had four reproductive events (multiparous) would have lower mitochondrial performance and greater oxidative damage than both nulliparous and primiparous females. We observed that multiple reproductive events enhanced the mitochondrial respiratory capacity of liver mitochondria in females with high body mass. Four-bout females showed a positive relationship between body mass and mitochondrial capacity. In contrast, non-reproductive females showed a negative relationship between body mass and mitochondrial capacity and primiparous females had a slope that did not differ from zero. Other measured variables, too, were highly dependent on body mass, suggesting that a female's body condition has strong impacts on mitochondrial physiology. We also evaluated the relationship between how much females allocated to reproduction (cumulative mass of all young weaned) and mitochondrial function and oxidative stress in the multiparous females. We found that females that allocated more to reproduction had lower basal respiration (state 4), lower mitochondrial density, and higher protein oxidation in liver mitochondria than females that allocated less. These results suggest that, at least through their first four reproductive events, female laboratory mice may experience bioenergetic benefits from reproduction but only those females that allocated the most to reproduction appear to experience a potential cost of reproduction.
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Affiliation(s)
- Noel R Park
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA.,Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Halie A Taylor
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA.,Department of Human Nutrition, Food, and Animal Sciences, University of Hawai'i, Manoa, HI, USA
| | | | - Ashley S Williams
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Kristjan Niitepõld
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA.,The Finnish Science Centre Heureka, Vantaa, Finland
| | - Kang Nian Yap
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA
| | | | - Wendy R Hood
- Department of Biological Sciences, Auburn University, Auburn, AL, 36849, USA.
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Dupoué A, Blaimont P, Rozen‐Rechels D, Richard M, Meylan S, Clobert J, Miles DB, Martin R, Decencière B, Agostini S, Le Galliard J. Water availability and temperature induce changes in oxidative status during pregnancy in a viviparous lizard. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13481] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andréaz Dupoué
- Station d'Ecologie Théorique et Expérimentale de Moulis CNRS‐UMR 5321 Saint Girons France
| | - Pauline Blaimont
- Department of Ecology & Evolutionary Biology University of California, Santa Cruz Santa Cruz CA USA
| | | | - Murielle Richard
- Station d'Ecologie Théorique et Expérimentale de Moulis CNRS‐UMR 5321 Saint Girons France
| | - Sandrine Meylan
- Sorbonne Université, iEES ParisCNRS‐UMR 7618 Paris France
- ESPE de Paris, Sorbonne Université Paris France
| | - Jean Clobert
- Station d'Ecologie Théorique et Expérimentale de Moulis CNRS‐UMR 5321 Saint Girons France
| | - Donald B. Miles
- Department of Biological Sciences Ohio University Athens OH USA
| | - Rémi Martin
- Station d'Ecologie Théorique et Expérimentale de Moulis CNRS‐UMR 5321 Saint Girons France
| | - Beatriz Decencière
- Centre de Recherche en Ecologie Expérimentale et Prédictive (CEREEP‐Ecotron Ile De France) Ecole Normale Supérieure CNRS‐UMS 3194 PSL Research University Saint‐Pierre‐lès‐Nemours France
| | - Simon Agostini
- Centre de Recherche en Ecologie Expérimentale et Prédictive (CEREEP‐Ecotron Ile De France) Ecole Normale Supérieure CNRS‐UMS 3194 PSL Research University Saint‐Pierre‐lès‐Nemours France
| | - Jean‐François Le Galliard
- Sorbonne Université, iEES ParisCNRS‐UMR 7618 Paris France
- Centre de Recherche en Ecologie Expérimentale et Prédictive (CEREEP‐Ecotron Ile De France) Ecole Normale Supérieure CNRS‐UMS 3194 PSL Research University Saint‐Pierre‐lès‐Nemours France
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Sudyka J. Does Reproduction Shorten Telomeres? Towards Integrating Individual Quality with Life‐History Strategies in Telomere Biology. Bioessays 2019; 41:e1900095. [DOI: 10.1002/bies.201900095] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/03/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Joanna Sudyka
- Wild Urban Evolution and Ecology LabCentre of New Technologies (CeNT)University of Warsaw 02‐097 Warsaw Poland
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39
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Cohen AA, Coste CFD, Li X, Bourg S, Pavard S. Are trade‐offs really the key drivers of ageing and life span? Funct Ecol 2019. [DOI: 10.1111/1365-2435.13444] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alan A. Cohen
- Groupe de recherche PRIMUS Department of Family Medicine University of Sherbrooke Sherbrooke QC Canada
| | - Christophe F. D. Coste
- Center for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
- Unité Eco‐anthropologie (EA) Muséum National d'Histoire Naturelle CNRS 7206 Université Paris Diderot Paris France
| | - Xiang‐Yi Li
- Institute of Biology University of Neuchâtel Neuchâtel Switzerland
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zurich Switzerland
| | - Salomé Bourg
- CNRS Laboratoire de Biométrie et Biologie Évolutive UMR5558 Université Lyon 1 Villeurbanne France
| | - Samuel Pavard
- Unité Eco‐anthropologie (EA) Muséum National d'Histoire Naturelle CNRS 7206 Université Paris Diderot Paris France
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40
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Roth JD, Dobson FS, Criscuolo F, Uhlrich P, Zahariev A, Bergouignan A, Viblanc VA. Subtle short-term physiological costs of an experimental augmentation of fleas in wild Columbian ground squirrels. ACTA ACUST UNITED AC 2019; 222:jeb.203588. [PMID: 31138632 DOI: 10.1242/jeb.203588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/16/2019] [Indexed: 11/20/2022]
Abstract
Parasites affect many aspects of host physiology and behavior, and thus are generally thought to negatively impact host fitness. However, changes in form of short-term parasite effects on host physiological markers have generally been overlooked in favor of fitness measures. Here, we studied flea (Oropsylla idahoensis and Oropsylla opisocroistis tuberculata) parasitism on a natural population of Columbian ground squirrels (Urocitellus columbianus) in Sheep River Provincial Park, AB, Canada. Fleas were experimentally added to adult female U. columbianus at physiologically demanding times, including birth, lactation and weaning of their young. The body mass of adult females, as well as their oxidative stress and immunity were recorded multiple times over the active season under flea-augmented and control conditions. We also measured the prevalence of an internal parasite (Trypanosoma otospermophili). Doubly labeled water (DLW) was intra-peritoneally injected at peak lactation to examine energy expenditure. Effects of parasites on oxidative stress were only observed after offspring were weaned. There was no direct effect of experimentally heightened flea prevalence on energy use. A short-term 24 h mass loss (-17 g) was detected briefly after parasite addition, likely due to U. columbianus preferentially allocating time for grooming. Our parasite augmentation did not strongly affect hosts and suggested that short-term physiological effects were unlikely to culminate in long-term fitness consequences. Columbian ground squirrels appear to rapidly manage parasite costs, probably through grooming.
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Affiliation(s)
- Jeffrey D Roth
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - F Stephen Dobson
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - François Criscuolo
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg CEDEX 2, France
| | - Pierre Uhlrich
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg CEDEX 2, France
| | - Alexandre Zahariev
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg CEDEX 2, France
| | - Audrey Bergouignan
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg CEDEX 2, France
| | - Vincent A Viblanc
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg CEDEX 2, France
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Ye P, Li M, Liao W, Ge K, Jin S, Zhang C, Chen X, Geng Z. Hypothalamic transcriptome analysis reveals the neuroendocrine mechanisms in controlling broodiness of Muscovy duck (Cairina moschata). PLoS One 2019; 14:e0207050. [PMID: 31071089 PMCID: PMC6508920 DOI: 10.1371/journal.pone.0207050] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 04/22/2019] [Indexed: 02/07/2023] Open
Abstract
Broodiness, one of the maternal behaviors and instincts for natural breeding in birds, is an interesting topic in reproductive biology. Broodiness in poultry is characterized by persistent nesting, usually associated with cessation of egg laying. The study of avian broodiness is essential for bird conservation breeding and commercial poultry industry. In this study, we examined the hypothalamus transcriptome of Muscovy duck in three reproductive stages, including egg-laying anaphase (LA), brooding prophase (BP) and brooding metaphase (BM). Differences in gene expression during the transition from egg-laying to broodiness were examined, and 155, 379, 292 differently expressed genes (DEGs) were obtained by pairwise comparisons of LA-vs-BP, LA-vs-BM and BP-vs-BM, respectively (fold change≥1.5, P < 0.05). Gene Ontology Term (GO) enrichment analysis suggested a possible role of oxidative stress in the hypothalamus might invoke reproductive costs that potentially change genes expression. KEGG analysis revealed glutamatergic synapse, dopaminergic synapse, serotonergic synapse and GABAergic synapse pathway were significantly enriched, and regulator genes were identified. Eight gene expression patterns were illustrated by trend analysis and further clustered into three clusters. Additional six hub genes were identified through combining trend analysis and protein-protein interaction (PPI) analysis. Our results suggested that the cyclical mechanisms of reproductive function conversion include effects of oxidative stress, biosynthesis of neurotransmitters or their receptors, and interactions between glucocorticoids and thyroid hormones and regulatory genes. These candidate genes and biological pathways may be used as targets for artificial manipulation and marker-assisted breeding in the reproductive behavior.
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Affiliation(s)
- Pengfei Ye
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Min Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Wang Liao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Kai Ge
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
- College of Biological and Pharmaceutical Engineering, West Anhui University, Liuan, China
| | - Sihua Jin
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Cheng Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Xingyong Chen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
| | - Zhaoyu Geng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei, P.R. China
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Ye Q, Zhang C, Wang Z, Feng Y, Zhou A, Xie S, Xiang Q, Song E, Zou J. Induction of oxidative stress, apoptosis and DNA damage by koumine in Tetrahymena thermophila. PLoS One 2019; 14:e0212231. [PMID: 30753239 PMCID: PMC6372211 DOI: 10.1371/journal.pone.0212231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 01/29/2019] [Indexed: 01/13/2023] Open
Abstract
Koumine is a component of the Chinese medicinal herb Gelsemium elegans and is toxic to vertebrates. We used the ciliate Tetrahymena thermophila as a model to evaluate the toxic effects of this indole alkaloid in eukaryotic microorganisms. Koumine inhibited T. thermophila growth and viability in a dose-dependent manner. Moreover, this drug produced oxidative stress in T. thermophila cells and expressions of antioxidant enzymes were significantly elevated at high koumine levels (p < 0.05). Koumine also caused significant levels of apoptosis (p < 0.05) and induced DNA damage in a dose-dependent manner. Mitophagic vacuoles were present in cells indicating induction of autophagy by this drug. Expression of ATG7, MTT2/4, CYP1 and HSP70 as well as the MAP kinase pathway gene MPK1 and MPK3 were significantly altered after exposed to koumine. This study represents a preliminary toxicological evaluation of koumine in the single celled eukaryote T. thermophila.
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Affiliation(s)
- Qiao Ye
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Chaonan Zhang
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zhenlu Wang
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yongyong Feng
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Aiguo Zhou
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Shaolin Xie
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
| | - Qiong Xiang
- Department of Traditional Chinese Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Enfeng Song
- Department of Traditional Chinese Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jixing Zou
- Healthy Aquaculture Laboratory, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong, China
- * E-mail:
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Parolini M, Iacobuzio R, De Felice B, Bassano B, Pennati R, Saino N. Age- and sex-dependent variation in the activity of antioxidant enzymes in the brown trout (Salmo trutta). FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:145-154. [PMID: 30109448 DOI: 10.1007/s10695-018-0545-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
Oxidative stress is defined as the imbalance between pro-oxidant and antioxidant molecules in favor of the former and it represents one of the main driving forces of aging. To counteract the harmful effects of oxidative stress, organisms evolved a complex antioxidant system. According to the free radical theory of aging, while the production of reactive oxygen species (ROS) increases with age, the antioxidant defenses decline. Although this relationship has been investigated in diverse vertebrate taxa, the information in fish is scant and inconsistent, particularly for wild populations. Thus, the aim of the present study was the investigation of age- and sex-related changes of the antioxidant enzymes activity in free-living individuals of the brown trout (Salmo trutta). We measured the activity of the main enzymes involved in antioxidant protection, namely superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione S-transferase (GST), as well as lipid peroxidation, in the gills and the liver dissected from brown trout (1+- to 5+-year-old). A significant age-dependent variation in the activity of antioxidant enzymes was noted, with the exception of CAT. GPx activity followed a significant increasing trend with age in both the organs, while SOD decreased in the liver. Increased GST activity was found in the gills only. Lipid peroxidation levels significantly decreased with age in both the organs. SOD and CAT showed sex-dependent differences in the liver of brown trout, with males showing lower enzymatic activity than females. Our data contribute to improve the knowledge on the relationship between antioxidant enzyme activity, aging, and sex in fish.
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Affiliation(s)
- Marco Parolini
- Department of Environmental Science and Policy, University of Milan, via Celoria 26, I-20133, Milan, Italy.
| | - Rocco Iacobuzio
- Department of Environmental Science and Policy, University of Milan, via Celoria 26, I-20133, Milan, Italy
- Alpine Wildlife Research Centre, Gran Paradiso National Park, Degioz, Valsavarenche (AO), Italy
| | - Beatrice De Felice
- Department of Environmental Science and Policy, University of Milan, via Celoria 26, I-20133, Milan, Italy
| | - Bruno Bassano
- Alpine Wildlife Research Centre, Gran Paradiso National Park, Degioz, Valsavarenche (AO), Italy
| | - Roberta Pennati
- Department of Environmental Science and Policy, University of Milan, via Celoria 26, I-20133, Milan, Italy
| | - Nicola Saino
- Department of Environmental Science and Policy, University of Milan, via Celoria 26, I-20133, Milan, Italy
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Latta LC, Tucker KN, Haney RA. The relationship between oxidative stress, reproduction, and survival in a bdelloid rotifer. BMC Ecol 2019; 19:7. [PMID: 30709393 PMCID: PMC6359782 DOI: 10.1186/s12898-019-0223-2] [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: 10/25/2018] [Accepted: 01/29/2019] [Indexed: 01/06/2023] Open
Abstract
Background A proposed mediator of trade-offs between survival and reproduction is oxidative stress resistance. Investments in reproduction are associated with increased oxidative stress that reduces lifespan. We used the bdelloid rotifer Adineta vaga to examine baseline patterns of survival, reproduction, and measures of oxidative
stress, as well as how these patterns change in the face of treatments known to induce oxidative stress. Results We discovered that under standard laboratory conditions late-life mortality may be explained by increased levels of oxidative stress induced by reproduction. However, following exposure to the oxidizing agent ionizing radiation, survival was unaffected while reproduction was reduced. Conclusions We suggest that under normal environmental conditions, reduced survival is mediated by endogenously generated oxidative stress induced by reproduction, and thus represents a cost of reproduction. Alternatively, the reduced reproduction evident under exogenously applied oxidative stress represents a cost of somatic maintenance. Biochemical analyses designed to assess levels of oxidative stress, oxidative stress resistance, and oxidative damage under normal and oxidizing conditions suggest that varying investments in enzymatic and non-enzymatic based oxidative stress resistance determine whether a cost of reproduction or a cost of somatic maintenance is observed. Electronic supplementary material The online version of this article (10.1186/s12898-019-0223-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Leigh C Latta
- Division of Natural Sciences and Mathematics, Lewis-Clark State College, 500 8th Avenue, Lewiston, ID, 83501, USA.
| | - K Nathaniel Tucker
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, 02138, USA
| | - Robert A Haney
- Department of Biological Sciences, University of Massachusetts Lowell, Lowell, MA, 01854, USA
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45
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Webb AC, Iverson JB, Knapp CR, DeNardo DF, French SS. Energetic investment associated with vitellogenesis induces an oxidative cost of reproduction. J Anim Ecol 2019; 88:461-472. [DOI: 10.1111/1365-2656.12936] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/12/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Alison C. Webb
- Department of Biology; Utah State University; Logan Utah
- Ecology Center; Utah State University; Logan Utah
| | | | - Charles R. Knapp
- Daniel P. Haerther Center for Conservation and Research; John G. Shedd Aquarium; Chicago Illinois
| | - Dale F. DeNardo
- School of Life Sciences; Arizona State University; Tempe Arizona
| | - Susannah S. French
- Department of Biology; Utah State University; Logan Utah
- Ecology Center; Utah State University; Logan Utah
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46
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Bonda-Ostaszewska E, Włostowski T, Łaszkiewicz-Tiszczenko B. Tissue Trace Elements and Lipid Peroxidation in Breeding Female Bank Voles Myodes glareolus. Biol Trace Elem Res 2019; 187:137-141. [PMID: 29704204 PMCID: PMC6314983 DOI: 10.1007/s12011-018-1353-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 04/17/2018] [Indexed: 01/27/2023]
Abstract
Recent studies have demonstrated that reproduction reduces oxidative damage in various tissues of small mammal females. The present work was designed to determine whether the reduction of oxidative stress in reproductive bank vole females was associated with changes in tissue trace elements (iron, copper, zinc) that play an essential role in the production of reactive oxygen species. Lipid peroxidation (a marker of oxidative stress) and iron concentration in liver, kidneys, and skeletal muscles of reproducing bank vole females that weaned one litter were significantly lower than in non-reproducing females; linear regression analysis confirmed a positive relation between the tissue iron and lipid peroxidation. The concentrations of copper were significantly lower only in skeletal muscles of reproductive females and correlated positively with lipid peroxidation. No changes in tissue zinc were found in breeding females when compared with non-breeding animals. These data indicate that decreases in tissue iron and copper concentrations may be responsible for the reduction of oxidative stress in reproductive bank vole females.
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Affiliation(s)
| | - Tadeusz Włostowski
- Institute of Biology, University of Bialystok, Ciołkowskiego 1J, 15-245, Białystok, Poland
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Vágási CI, Vincze O, Pătraș L, Osváth G, Pénzes J, Haussmann MF, Barta Z, Pap PL. Longevity and life history coevolve with oxidative stress in birds. Funct Ecol 2019; 33:152-161. [PMID: 34290466 PMCID: PMC8291348 DOI: 10.1111/1365-2435.13228] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 09/30/2018] [Indexed: 01/09/2023]
Abstract
1. The mechanisms that underpin the evolution of ageing and life histories remain elusive. Oxidative stress, which results in accumulated cellular damages, is one of the mechanisms suggested to play a role. 2. In this paper, we set out to test the "oxidative stress theory of ageing" and the "oxidative stress hypothesis of life histories" using a comprehensive phylogenetic comparison based on an unprecedented dataset of oxidative physiology in 88 free-living bird species. 3. We show for the first time that bird species with longer lifespan have higher non-enzymatic antioxidant capacity and suffer less oxidative damage to their lipids. We also found that bird species featuring a faster pace-of-life either have lower non-enzymatic antioxidant capacity or are exposed to higher levels of oxidative damage, while adult annual mortality does not relate to oxidative state. 4. These results reinforce the role of oxidative stress in the evolution of lifespan and also corroborate the role of oxidative state in the evolution of life histories among free-living birds.
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Affiliation(s)
- Csongor I. Vágási
- Hungarian Department of Biology and Ecology, Evolutionary Ecology Group, Babeş-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, MTA-DE Behavioural Ecology Research Group, University of Debrecen, Debrecen, Hungary
| | - Orsolya Vincze
- Hungarian Department of Biology and Ecology, Evolutionary Ecology Group, Babeş-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, MTA-DE Behavioural Ecology Research Group, University of Debrecen, Debrecen, Hungary
| | - Laura Pătraș
- Department of Molecular Biology and Biotechnology, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - Gergely Osváth
- Hungarian Department of Biology and Ecology, Evolutionary Ecology Group, Babeş-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, MTA-DE Behavioural Ecology Research Group, University of Debrecen, Debrecen, Hungary
- Museum of Zoology, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - Janka Pénzes
- Hungarian Department of Biology and Ecology, Evolutionary Ecology Group, Babeş-Bolyai University, Cluj-Napoca, Romania
| | | | - Zoltán Barta
- Department of Evolutionary Zoology, MTA-DE Behavioural Ecology Research Group, University of Debrecen, Debrecen, Hungary
| | - Péter L. Pap
- Hungarian Department of Biology and Ecology, Evolutionary Ecology Group, Babeş-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, MTA-DE Behavioural Ecology Research Group, University of Debrecen, Debrecen, Hungary
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Yu Z, Yin D, Zhang J. Sex-dependent effects of sulfamethoxazole exposure on pro-/anti-oxidant status with stimulation on growth, behavior and reproduction in the amphipod Hyalella azteca. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:398-404. [PMID: 30352354 DOI: 10.1016/j.envpol.2018.10.033] [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: 06/10/2018] [Revised: 08/26/2018] [Accepted: 10/05/2018] [Indexed: 05/05/2023]
Abstract
Negative effects of environmental antibiotics on non-target organisms were observed in studies at various levels of the biological organization. Yet, studies combining the effects at multiple levels were required to interpret their ecological frequencies in a broader context. Currently, effects of sulfamethoxazole (SMX) was studied on the amphipod Hyalella azteca which is important in ecological stability. At the biochemical level, effects on the antioxidant capacities showed stimulation with an inverse U-shaped change over the concentrations. The stimulation was greater in male than in females. Effects on the oxidative stress showed a U-shaped change which included stimulation and inhibition in males, and solely stimulation in females. The stimulation was less in males than in females. Effects on acetylcholinesterase (AChE) activities in both sexes were well correlated with those on oxidative stress (p < 0.05). At the individual level, effects on the body weight showed an inverse U-shaped change over concentrations, and the stimulation was greater in males than in females. The stimulations were significantly correlated with the male oxidative stress (p < 0.01), and male (p < 0.1) and female AChE activities (p < 0.05). Effects of SMX on the pre-copulation behavior also showed an inverse U-shaped change which correlated with male and female antioxidant capacities (p < 0.05) and the male body weight (p < 0.05). At the population level, effects on the reproduction showed an inverse U-shaped change over concentrations, and they significantly correlated with the male body weight (p < 0.05) and the pre-copulation behavior (p < 0.05). Summing up, SMX provoked simultaneous disturbances on the amphipod at multiple levels with sex-dependent responses.
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Affiliation(s)
- Zhenyang Yu
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China; Jiaxing Tongji Institute for Environment, Jiaxing, Zhejiang, 314051, PR China.
| | - Daqiang Yin
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Jing Zhang
- College of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai, 201418, PR China
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Kouyoumdjian L, Gangloff EJ, Souchet J, Cordero GA, Dupoué A, Aubret F. Transplanting gravid lizards to high elevation alters maternal and embryonic oxygen physiology, but not reproductive success or hatchling phenotype. J Exp Biol 2019; 222:jeb.206839. [DOI: 10.1242/jeb.206839] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/19/2019] [Indexed: 12/13/2022]
Abstract
Increased global temperatures have opened previously inhospitable habitats, such as at higher elevations. However, the reduction of oxygen partial pressure with increase in elevation represents an important physiological constraint that may limit colonization of such habitats, even if the thermal niche is appropriate. To test the mechanisms underlying the response to ecologically-relevant levels of hypoxia, we performed a translocation experiment with the common wall lizard (Podarcis muralis), a widespread European lizard amenable to establishing populations outside its natural range. We investigated the impacts of hypoxia on the oxygen physiology and reproductive output of gravid common wall lizards and the subsequent development and morphology of their offspring. Lowland females transplanted to high elevations increased their haematocrit and haemoglobin concentration within days and maintained routine metabolism compared to lizards kept at native elevations. However, transplanted lizards suffered from increased reactive oxygen metabolite production near the oviposition date, suggesting a cost of reproduction at high elevation. Transplanted females and females native to different elevations did not differ in reproductive output (clutch size, egg mass, relative clutch mass, or embryonic stage at oviposition) or in post-oviposition body condition. Developing embryos reduced heart rates and prolonged incubation times at high elevations within the native range and at extreme high elevations beyond the current range, but this reduced oxygen availability did not affect metabolic rate, hatching success, or hatchling size. These results suggest that this opportunistic colonizer is capable of successfully responding to novel environmental constraints in these important life-history stages.
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Affiliation(s)
- Laura Kouyoumdjian
- Station d'Ecologie Théorique et Expérimentale du CNRS – UMR 5321, Moulis, France
| | - Eric J. Gangloff
- Station d'Ecologie Théorique et Expérimentale du CNRS – UMR 5321, Moulis, France
| | - Jérémie Souchet
- Station d'Ecologie Théorique et Expérimentale du CNRS – UMR 5321, Moulis, France
| | - Gerardo A. Cordero
- Fachbereich Geowissenschaften, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Andréaz Dupoué
- CNRS UPMC, UMR 7618, iEES Paris, Université Pierre et Marie Curie, Paris, France
| | - Fabien Aubret
- Station d'Ecologie Théorique et Expérimentale du CNRS – UMR 5321, Moulis, France
- School of Molecular and Life Sciences, Curtin University, 6102 WA, Australia
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50
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Noguera JC. Crickets increase sexual signalling and sperm protection but live shorter in the presence of rivals. J Evol Biol 2018; 32:49-57. [DOI: 10.1111/jeb.13390] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/05/2018] [Accepted: 10/11/2018] [Indexed: 12/20/2022]
Affiliation(s)
- José C. Noguera
- Grupo de Ecología Animal; Universidade de Vigo, Torre CACTI; Vigo Spain
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