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Su H, Ma D, Fan J, Zhong Z, Li Y, Zhu H. Metabolism response mechanism in the gill of Oreochromis mossambicus under salinity, alkalinity and saline-alkalinity stresses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 251:114523. [PMID: 36638565 DOI: 10.1016/j.ecoenv.2023.114523] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/22/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Saline-alkalinity is one of the important ecological parameter that has an impact function on the physiological metabolism, osmoregulation, survival, growth, development and distribution of teleost fish. Oreochromis mossambicus, a species of euryhaline that can withstand a wide variety of salinities, may be used as a research model animal in environmental studies. In order to detect the metabolism responses and mechanisms of different osmotic stresses tolerance in the gills of O. mossambicus, in present study, the metabolic responses of O. mossambicus subjected to salinity (25 g/L, S_S), alkalinity (4 g/L, A_S) and saline-alkalinity stress (salinity: 25 g/L, alkalinity: 4 g/L; SA_S) with the control environment (freshwater, C_S) were investigated by LC-MS/MS-based metabolomics. The metabolism results indicated that numerous metabolites were identified between the stress groups and the control group. In addition, under three osmotic stresses, the amino acid and carbohydrate metabolism, levels of amino acids, osmolytes and energy substances, such as L-lysine, arachidonic acid, docosahexaenoic acids, creatine and taurine, were significantly affected and changed in the metabolism of the gills of O. mossambicus. The metabolism data indicated that signal transduction and regulation pathways, including FoxO signaling pathway, mTOR signaling pathway and prolactin signaling pathway, were enriched in the gill during adaptation to high salinity, alkalinity and saline-alkalinity stress. The results of this study provide more comprehensive and reliable data for the osmotic pressure regulation mechanism and biological response of euryhaline teleost, and provide reliable scientific basis for the breeding and research of high salinity tolerance population, and further promote the development and utilization of saline-alkalinity water resources.
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Affiliation(s)
- Huanhuan Su
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China; Shanghai Ocean University, College of Fisheries and Life Science, Shanghai 201306, China
| | - Dongmei Ma
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China; Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Guangzhou 510380, China
| | - Jiajia Fan
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China; Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Guangzhou 510380, China
| | - Zaixuan Zhong
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China
| | - Yaya Li
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China; Shanghai Ocean University, College of Fisheries and Life Science, Shanghai 201306, China
| | - Huaping Zhu
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China; Guangdong Provincial Key Laboratory of Aquatic Animal Immunology and Sustainable Aquaculture, Guangzhou 510380, China.
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Boutet I, Lacroix C, Devin S, Tanguy A, Moraga D, Auffret M. Does the environmental history of mussels have an effect on the physiological response to additional stress under experimental conditions? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:149925. [PMID: 34555605 DOI: 10.1016/j.scitotenv.2021.149925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/11/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Expected effects on marine biota of the ongoing elevation of water temperature and high latitudes is of major concern when considering the reliability of coastal ecosystem production. To compare the capacity of coastal organisms to cope with a temperature increase depending on their environmental history, responses of adult blue mussels (Mytilus spp.) taken from two sites differentially exposed to chemical pollution were investigated during an experimental exposure to a thermal stress. Immune parameters were notably altered by extreme warming and transcriptional changes for a broad selection of genes were associated to the temperature increase following a two-step response pattern. Site-specific responses suggested an influence of environmental history and support the possibility of a genetic basis in the physiological response. However no meaningful difference was detected between the response of hybrids and M galloprovincialis. This study brings new information about the capacity of mussels to cope with the ongoing elevation of water temperature in these coastal ecosystems.
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Affiliation(s)
- Isabelle Boutet
- Station Biologique de Roscoff, Laboratoire Adaptation et Diversité en Milieu Marin (UMR 7144 AD2M CNRS-Sorbonne Université), Place Georges Tessier, 29680 Roscoff, France
| | - Camille Lacroix
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France; CEDRE Conseil et Expertise en Pollutions Accidentelles des Eaux, 715 Rue Alain Colas, CS 41836, 29218 Brest Cedex 2, France
| | - Simon Devin
- Laboratoire Interdisciplinaire des Environnements Continentaux (UMR 7360 LIEC CNRS-Université de Lorraine), 8 rue du Général Delestraint, 57070 Metz. France
| | - Arnaud Tanguy
- Station Biologique de Roscoff, Laboratoire Adaptation et Diversité en Milieu Marin (UMR 7144 AD2M CNRS-Sorbonne Université), Place Georges Tessier, 29680 Roscoff, France
| | - Dario Moraga
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France
| | - Michel Auffret
- Institut Universitaire Européen de la Mer, Laboratoire de Sciences de l'Environnement Marin (UMR 6539 LEMAR CNRS-UBO-IFREMER-IRD), Technopôle Brest-Iroise, 29280 Plouzané, France.
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Balanced Polymorphism at the Pgm-1 Locus of the Pompeii Worm Alvinella pompejana and Its Variant Adaptability Is Only Governed by Two QE Mutations at Linked Sites. Genes (Basel) 2022; 13:genes13020206. [PMID: 35205251 PMCID: PMC8872362 DOI: 10.3390/genes13020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 11/16/2022] Open
Abstract
The polychaete Alvinella pompejana lives exclusively on the walls of deep-sea hydrothermal chimneys along the East Pacific Rise (EPR), and displays specific adaptations to withstand the high temperatures and hypoxia associated with this highly variable habitat. Previous studies have revealed the existence of a balanced polymorphism on the enzyme phosphoglucomutase associated with thermal variations, where allozymes 90 and 100 exhibit different optimal activities and thermostabilities. Exploration of the mutational landscape of phosphoglucomutase 1 revealed the maintenance of four highly divergent allelic lineages encoding the three most frequent electromorphs over the geographic range of A. pompejana. This polymorphism is only governed by two linked amino acid replacements, located in exon 3 (E155Q and E190Q). A two-niche model of selection, including ‘cold’ and ‘hot’ conditions, represents the most likely scenario for the long-term persistence of these isoforms. Using directed mutagenesis and the expression of the three recombinant variants allowed us to test the additive effect of these two mutations on the biochemical properties of this enzyme. Our results are coherent with those previously obtained from native proteins, and reveal a thermodynamic trade-off between protein thermostability and catalysis, which is likely to have maintained these functional phenotypes prior to the geographic separation of populations across the Equator about 1.2 million years ago.
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Bultelle F, Boutet I, Devin S, Caza F, St-Pierre Y, Péden R, Brousseau P, Chan P, Vaudry D, Le Foll F, Fournier M, Auffret M, Rocher B. Molecular response of a sub-antarctic population of the blue mussel (Mytilus edulis platensis) to a moderate thermal stress. MARINE ENVIRONMENTAL RESEARCH 2021; 169:105393. [PMID: 34217095 DOI: 10.1016/j.marenvres.2021.105393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 06/08/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
The Kerguelen Islands (49°26'S, 69°50'E) represent a unique environment due to their geographical isolation, which protects them from anthropogenic pollution. The ability of the endemic mussel, part of the Mytilus complex, to cope with moderate heat stress was explored using omic tools. Transcripts involved in six major metabolic functions were selected and the qRT-PCR data indicated mainly changes in aerobic and anaerobic energy metabolism and stress response. Proteomic comparisons revealed a typical stress response pattern with cytoskeleton modifications and elements suggesting increased energy metabolism. Results also suggest conservation of protein homeostasis by the long-lasting presence of HSP while a general decrease in transcription is observed. The overall findings are consistent with an adaptive response to moderate stresses in mussels in good physiological condition, i.e. living in a low-impact site, and with the literature concerning this model species. Therefore, local blue mussels could be advantageously integrated into biomonitoring strategies, especially in the context of Global Change.
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Affiliation(s)
- F Bultelle
- UMR-I 02 INERIS-URCA-ULH SEBIO / Environmental Stresses and Biomonitoring of Aquatic Ecosystems, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063, Le Havre Cedex, France.
| | - I Boutet
- Station Biologique de Roscoff CNRS, Laboratory Adaptation & Diversity in Marine Environment (UMR7144 CNRS-SU), Sorbonne Université, Roscoff, France.
| | - S Devin
- UMR 7360 LIEC, Université Metz-Lorraine, France.
| | - F Caza
- INRS-Institut Armand-Frappier, 531 Boul. des Prairies, Laval, Québec, H7V 1B7, Canada.
| | - Y St-Pierre
- INRS-Institut Armand-Frappier, 531 Boul. des Prairies, Laval, Québec, H7V 1B7, Canada.
| | - R Péden
- UMR-I 02 INERIS-URCA-ULH SEBIO / Environmental Stresses and Biomonitoring of Aquatic Ecosystems, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063, Le Havre Cedex, France; UMR-I 02 INERIS-URCA-ULH SEBIO / Environmental Stresses and Biomonitoring of Aquatic Ecosystems, Université de REIMS Champagne-Ardenne, Campus Moulin de la Housse, 51687, Reims, France.
| | - P Brousseau
- Institut des Sciences de la mer, Le Parc de la rivière Mitis, Sainte-Flavie, Québec, G0J 2L0, Canada.
| | - P Chan
- Normandie Univ, UNIROUEN, Plateforme PISSARO, IRIB, 76821, Mont-Saint-Aignan, France.
| | - D Vaudry
- Normandie Univ, UNIROUEN, Plateforme PISSARO, IRIB, 76821, Mont-Saint-Aignan, France; Normandie Univ, UNIROUEN, INSERM U1239 DC2N, 76821, Mont-Saint-Aignan, France.
| | - F Le Foll
- UMR-I 02 INERIS-URCA-ULH SEBIO / Environmental Stresses and Biomonitoring of Aquatic Ecosystems, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063, Le Havre Cedex, France.
| | - M Fournier
- Institut des Sciences de la mer, Le Parc de la rivière Mitis, Sainte-Flavie, Québec, G0J 2L0, Canada.
| | - M Auffret
- UMR CNRS 6539-LEMAR/ Laboratoire des Sciences de l'Environnement Marin, Technopôle Brest-Iroise, 29280, Plouzané, France.
| | - B Rocher
- UMR-I 02 INERIS-URCA-ULH SEBIO / Environmental Stresses and Biomonitoring of Aquatic Ecosystems, FR CNRS 3730 Scale, Université Le Havre Normandie, F-76063, Le Havre Cedex, France.
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Madeira D, Araújo JE, Madeira C, Mendonça V, Vitorino R, Vinagre C, Diniz MS. Seasonal proteome variation in intertidal shrimps under a natural setting: Connecting molecular networks with environmental fluctuations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134957. [PMID: 31767328 DOI: 10.1016/j.scitotenv.2019.134957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
The ability of intertidal organisms to maintain their performance via molecular and physiological adjustments under low tide, seasonal fluctuations and extreme events ultimately determines population viability. Analyzing this capacity in the wild is extremely relevant since intertidal communities are under increased climate variability owing to global changes. We addressed the seasonal proteome signatures of a key intertidal species, the shrimp Palaemon elegans, in a natural setting. Shrimps were collected during spring and summer seasons at low tides and were euthanized in situ. Environmental variability was also assessed using hand-held devices and data loggers. Muscle samples were taken for 2D gel electrophoresis and protein identification through mass spectrometry. Proteome data revealed that 55 proteins (10.6% of the proteome) significantly changed between spring and summer collected shrimps, 24 of which were identified. These proteins were mostly involved in cytoskeleton remodelling, energy metabolism and transcription regulation. Overall, shrimps modulate gene expression leading to metabolic and structural adjustments related to seasonal differences in the wild (i.e. abiotic variation and possibly intrinsic cycles of reproduction and growth). This potentially promotes performance and fitness as suggested by the higher condition index in summer-collected shrimps. However, inter-individual variation (% coefficient of variation) in protein levels was quite low (min-max ranges were 0.6-8.3% in spring and 1.2-4.8% in summer), possibly suggesting reduced genetic diversity or physiological canalization. Protein plasticity is relevant to cope with present and upcoming environmental variation related to anthropogenic forcing (e.g. global change, pollution) but low inter-individual variation may limit evolutionary potential of shrimp populations.
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Affiliation(s)
- D Madeira
- Research Unit on Applied Molecular Biosciences (UCIBIO-REQUIMTE), Department of Chemistry, Faculty of Sciences and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal; Centre for Environmental and Marine Studies (CESAM), ECOMARE & Department of Biology, University of Aveiro, Estrada do Porto de Pesca, 3830-565 Gafanha da Nazaré, Portugal.
| | - J E Araújo
- Research Unit on Applied Molecular Biosciences (UCIBIO-REQUIMTE), Department of Chemistry, Faculty of Sciences and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - C Madeira
- Research Unit on Applied Molecular Biosciences (UCIBIO-REQUIMTE), Department of Chemistry, Faculty of Sciences and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal; Marine and Environmental Sciences Centre (MARE), Department of Biology, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal
| | - V Mendonça
- Marine and Environmental Sciences Centre (MARE), Department of Biology, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal
| | - R Vitorino
- Institute for Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Cardiovascular Research Centre (UnIC), Department of Cardiothoracic Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - C Vinagre
- Marine and Environmental Sciences Centre (MARE), Department of Biology, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal
| | - M S Diniz
- Research Unit on Applied Molecular Biosciences (UCIBIO-REQUIMTE), Department of Chemistry, Faculty of Sciences and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal.
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Chiaramonte M, Inguglia L, Vazzana M, Deidun A, Arizza V. Stress and immune response to bacterial LPS in the sea urchin Paracentrotus lividus (Lamarck, 1816). FISH & SHELLFISH IMMUNOLOGY 2019; 92:384-394. [PMID: 31220574 DOI: 10.1016/j.fsi.2019.06.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/07/2019] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
The immune system of the sea urchin species Paracentrotus lividus is highly complex and, as yet, poorly understood. P. lividus coelomocytes mediate immune response through phagocytosis and encapsulation of non-self particles, in addition to the production of antimicrobial molecules. Despite this understanding, details of exactly how these processes occur and the mechanisms which drive them are still in need of clarification. In this study, we show how the bacterial lipopolysaccharides (LPS) is able to induce a stress response which increases the levels of the heat shock proteins HSP70 and HSP90 only a few hours after treatment. This study also shows that LPS treatment increases the expression of the β-thymosin-derivated protein paracentrin, the precursor of antimicrobial peptides.
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Affiliation(s)
- Marco Chiaramonte
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
| | - Luigi Inguglia
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy.
| | - Mirella Vazzana
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
| | - Alan Deidun
- Dept. of Geosciences, University of Malta, Msida, MSD, 2080, Malta
| | - Vincenzo Arizza
- Dept. STEBICEF, Università Degli Studi di Palermo, Via Archirafi, 18, 90123, Palermo, Italy
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Ertl NG, O'Connor WA, Elizur A. Molecular effects of a variable environment on Sydney rock oysters, Saccostrea glomerata: Thermal and low salinity stress, and their synergistic effect. Mar Genomics 2019; 43:19-32. [DOI: 10.1016/j.margen.2018.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 10/07/2018] [Accepted: 10/18/2018] [Indexed: 12/26/2022]
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8
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Nakamura-Kusakabe I, Nagasaki T, Kinjo A, Sassa M, Koito T, Okamura K, Yamagami S, Yamanaka T, Tsuchida S, Inoue K. Effect of sulfide, osmotic, and thermal stresses on taurine transporter mRNA levels in the gills of the hydrothermal vent-specific mussel Bathymodiolus septemdierum. Comp Biochem Physiol A Mol Integr Physiol 2016; 191:74-79. [DOI: 10.1016/j.cbpa.2015.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 01/16/2023]
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9
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Is the deep-sea crab Chaceon affinis able to induce a thermal stress response? Comp Biochem Physiol A Mol Integr Physiol 2015; 181:54-61. [DOI: 10.1016/j.cbpa.2014.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 11/17/2014] [Accepted: 11/18/2014] [Indexed: 11/17/2022]
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Gollner S, Govenar B, Fisher CR, Bright M. Size matters at deep-sea hydrothermal vents: different diversity and habitat fidelity patterns of meio- and macrofauna. MARINE ECOLOGY PROGRESS SERIES 2015; 520:57-66. [PMID: 26166922 PMCID: PMC4496463 DOI: 10.3354/meps11078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Species with markedly different sizes interact when sharing the same habitat. Unravelling mechanisms that control diversity thus requires consideration of a range of size classes. We compared patterns of diversity and community structure for meio- and macrofaunal communities sampled along a gradient of environmental stress at deep-sea hydrothermal vents on the East Pacific Rise (9° 50' N) and neighboring basalt habitats. Both meio- and macrofaunal species richnesses were lowest in the high-stress vent habitat, but macrofaunal richness was highest among intermediate-stress vent habitats. Meiofaunal species richness was negatively correlated with stress, and highest on the basalt. In these deep-sea basalt habitats surrounding hydrothermal vents, meiofaunal species richness was consistently higher than that of macrofauna. Consideration of the physiological capabilities and life history traits of different-sized animals suggests that different patterns of diversity may be caused by different capabilities to deal with environmental stress in the 2 size classes. In contrast to meiofauna, adaptations of macrofauna may have evolved to allow them to maintain their physiological homeostasis in a variety of hydrothermal vent habitats and exploit this food-rich deep-sea environment in high abundances. The habitat fidelity patterns also differed: macrofaunal species occurred primarily at vents and were generally restricted to this habitat, but meiofaunal species were distributed more evenly across proximate and distant basalt habitats and were thus not restricted to vent habitats. Over evolutionary time scales these contrasting patterns are likely driven by distinct reproduction strategies and food demands inherent to fauna of different sizes.
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Affiliation(s)
- Sabine Gollner
- Department of Marine Biology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
- German Center for Marine Biodiversity Research (DZMB), Senckenberg am Meer, Am Südstrand 44, 26382 Wilhelmshaven, Germany
- Royal Netherlands Institute for Sea Research (NIOZ), Ecosystem Studies, Korringaweg 7, 4401 NT Yerseke, The Netherlands
| | - Breea Govenar
- Biology Department, Rhode Island College, 600 Mt. Pleasant Ave., Providence, Rhode Island 02908, USA
| | - Charles R. Fisher
- Department of Biology, 208 Mueller Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Monika Bright
- Department of Marine Biology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
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Bougerol M, Boutet I, LeGuen D, Jollivet D, Tanguy A. Transcriptomic response of the hydrothermal mussel Bathymodiolus azoricus in experimental exposure to heavy metals is modulated by the Pgm genotype and symbiont content. Mar Genomics 2014; 21:63-73. [PMID: 25542630 DOI: 10.1016/j.margen.2014.11.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 11/28/2014] [Accepted: 11/28/2014] [Indexed: 11/27/2022]
Abstract
Hydrothermal vent mussels belonging to the genus Bathymodiolus dominate communities at hydrothermal sites of the Mid-Atlantic Ridge. The mussel Bathymodiolus azoricus harbors thiotrophic and methanotrophic symbiotic bacteria in its gills and evolves in naturally highly metal contaminated environments. In the context of investigations on metal tolerance/effect in B. azoricus, we focused our work on the short-term adaptive response (15days) of mussels to different metals exposure at a molecular level using metal concentrations chosen to mimic natural situations at three vents sites. The expression of a set of 38 genes involved in different steps of the metal uptake, detoxication and various metabolisms was analysed by qPCR. Mussels were also genotyped at 10 enzyme loci to explore the relationships among natural genetic variation and gene expression. Relation between symbiont content (both sulfur-oxidizing and methanogen bacteria) and gene expression was also analysed. Our study demonstrated the influence of metal cocktail composition and time exposure on the transcriptome regulation with a specific pattern of regulation observed for the three metal cocktail tested. We also evidenced the significant influence of some specific Pgm genotype on the global gene expression in our experimental populations and a general trend of a higher gene expression in individuals carrying a high symbiont content.
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Affiliation(s)
- Marion Bougerol
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Universités, UPMC Univ Paris 06, Station Biologique de Roscoff, 29680 Roscoff, France; CNRS/MNHN, UMR 7221, Evolution des Régulations Endocriniennes, MNHN, 7 Rue Cuvier, 75231 Paris Cedex 05, France
| | - Isabelle Boutet
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Universités, UPMC Univ Paris 06, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Dominique LeGuen
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Universités, UPMC Univ Paris 06, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Didier Jollivet
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Universités, UPMC Univ Paris 06, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Arnaud Tanguy
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France; Sorbonne Universités, UPMC Univ Paris 06, Station Biologique de Roscoff, 29680 Roscoff, France.
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12
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Wang W, Hui JHL, Chan TF, Chu KH. De novo transcriptome sequencing of the snail Echinolittorina malaccana: identification of genes responsive to thermal stress and development of genetic markers for population studies. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2014; 16:547-559. [PMID: 24825364 DOI: 10.1007/s10126-014-9573-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 04/08/2014] [Indexed: 06/03/2023]
Abstract
Echinolittorina snails inhabit the upper intertidal rocky shore and face strong selection pressures from thermal extremes and fluctuations. Revealing the molecular processes of adaptive significance is greatly obstructed by the scarcity of genomic resource for these taxa. Here, we reported the first comprehensive transcriptome dataset for the genus Echinolittorina. Using Illumina HiSeq 2000 platform, about 52 M and 54 M paired-end clean reads were, respectively, generated for the control and heat-stressed libraries. Totally, 115,211 unique transcript fragments (unigenes) were assembled, with an average length of 453 bp and a N50 size of 492 bp. Approximately one third of the unigenes could be annotated according to their homology matches against the Nr, Swiss-Prot, COG, or KEGG databases, and they were found to represent 23,098 non-redundant genes. Gene expression comparison revealed that 1,267 and 6,663 annotated genes were, respectively, up- and downregulated with at least twofold changes upon heat stress. Gene Ontology and KEGG pathway analyses indicated that there were overrepresented amount of genes enriched in a broad spectrum of biological processes and pathways, including those associated with cytoskeleton organization, developmental regulation, signaling transduction, infection, and cardiac function. In addition, a transcriptome-wide search for polymorphic loci yielded a total of 11,228 simple sequence repeats (SSRs) from 9,938 unigenes and 138,631 single nucleotide polymorphism (SNP) and insertion/deletion (INDEL) sites among 22,770 unigenes. The large number of transcript sequences acquired, the biological pathways identified, and the candidate microsatellite and SNP/INDEL loci discovered in the study will serve as valuable resources for further investigations of genetic differentiation and thermal adaptation among populations.
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Affiliation(s)
- Wei Wang
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong,
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Plouviez S, Faure B, Le Guen D, Lallier FH, Bierne N, Jollivet D. A new barrier to dispersal trapped old genetic clines that escaped the Easter Microplate tension zone of the Pacific vent mussels. PLoS One 2013; 8:e81555. [PMID: 24312557 PMCID: PMC3846894 DOI: 10.1371/journal.pone.0081555] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 10/21/2013] [Indexed: 11/23/2022] Open
Abstract
Comparative phylogeography of deep-sea hydrothermal vent species has uncovered several genetic breaks between populations inhabiting northern and southern latitudes of the East Pacific Rise. However, the geographic width and position of genetic clines are variable among species. In this report, we further characterize the position and strength of barriers to gene flow between populations of the deep-sea vent mussel Bathymodiolus thermophilus. Eight allozyme loci and DNA sequences of four nuclear genes were added to previously published sequences of the cytochrome c oxidase subunit I gene. Our data confirm the presence of two barriers to gene flow, one located at the Easter Microplate (between 21°33′S and 31°S) recently described as a hybrid zone, and the second positioned between 7°25′S and 14°S with each affecting different loci. Coalescence analysis indicates a single vicariant event at the origin of divergence between clades for all nuclear loci, although the clines are now spatially discordant. We thus hypothesize that the Easter Microplate barrier has recently been relaxed after a long period of isolation and that some genetic clines have escaped the barrier and moved northward where they have subsequently been trapped by a reinforcing barrier to gene flow between 7°25′S and 14°S.
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Affiliation(s)
- Sophie Plouviez
- Université Pierre et Marie Curie-Paris 6, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- CNRS UMR 7144, Station Biologique de Roscoff, Roscoff, France
- Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University, Beaufort, North Carolina, United States of America
- * E-mail:
| | - Baptiste Faure
- Université Pierre et Marie Curie-Paris 6, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- CNRS UMR 7144, Station Biologique de Roscoff, Roscoff, France
- Université Montpellier 2, Montpellier, France
- CNRS UMR 5554, Institut des Sciences de l’Evolution, Station Méditerranéenne de l’Environnement Littoral, Sète, France
| | - Dominique Le Guen
- Université Pierre et Marie Curie-Paris 6, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- CNRS UMR 7144, Station Biologique de Roscoff, Roscoff, France
| | - François H. Lallier
- Université Pierre et Marie Curie-Paris 6, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- CNRS UMR 7144, Station Biologique de Roscoff, Roscoff, France
| | - Nicolas Bierne
- Université Montpellier 2, Montpellier, France
- CNRS UMR 5554, Institut des Sciences de l’Evolution, Station Méditerranéenne de l’Environnement Littoral, Sète, France
| | - Didier Jollivet
- Université Pierre et Marie Curie-Paris 6, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- CNRS UMR 7144, Station Biologique de Roscoff, Roscoff, France
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Marshall DJ, Dong YW, McQuaid CD, Williams GA. Thermal adaptation in the intertidal snail Echinolittorina malaccana contradicts current theory by revealing the crucial roles of resting metabolism. ACTA ACUST UNITED AC 2012; 214:3649-57. [PMID: 21993794 DOI: 10.1242/jeb.059899] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Contemporary theory for thermal adaptation of ectothermic metazoans focuses on the maximization of energy gain and performance (locomotion and foraging). Little consideration is given to the selection for mechanisms that minimize resting energy loss in organisms whose energy gain is severely constrained. We tested a hypothetical framework for thermal performance of locomotor activity (a proxy for energy gain) and resting metabolism (a proxy for energy loss) in energetically compromised snails in the littoral fringe zone, comparing this with existing theory. In contrast to theory, the thermal ranges and optima for locomotor performance and metabolic performance of Echinolittorina malaccana are mismatched, and energy gain is only possible at relatively cool temperatures. To overcome thermal and temporal constraints on energy gain while experiencing high body temperatures (23-50°C), these snails depress resting metabolism between 35 and 46°C (thermally insensitive zone). The resulting bimodal relationship for metabolism against temperature contrasts with the unimodal or exponential relationships of most ectotherms. Elevation of metabolism above the breakpoint temperature for thermal insensitivity (46°C) coincides with the induction of a heat shock response, and has implications for energy expenditure and natural selection. Time-dependent mortality is initiated at this breakpoint temperature, suggesting a threshold above which the rate of energy demand exceeds the capacity for cellular energy generation (rate of ATP turnover). Mortality in a thermal range that elevates rather than limits aerobic metabolism contrasts with the hypothesis that cellular oxygen deficiency underlies temperature-related mortality. The findings of this study point to the need to incorporate aspects of resting metabolism and energy conservation into theories of thermal adaptation.
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Affiliation(s)
- David J Marshall
- Biological Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam.
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Boutet I, Ripp R, Lecompte O, Dossat C, Corre E, Tanguy A, Lallier FH. Conjugating effects of symbionts and environmental factors on gene expression in deep-sea hydrothermal vent mussels. BMC Genomics 2011; 12:530. [PMID: 22034982 PMCID: PMC3218092 DOI: 10.1186/1471-2164-12-530] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Accepted: 10/28/2011] [Indexed: 11/17/2022] Open
Abstract
Background The deep-sea hydrothermal vent mussel Bathymodiolus azoricus harbors thiotrophic and methanotrophic symbiotic bacteria in its gills. While the symbiotic relationship between this hydrothermal mussel and these chemoautotrophic bacteria has been described, the molecular processes involved in the cross-talking between symbionts and host, in the maintenance of the symbiois, in the influence of environmental parameters on gene expression, and in transcriptome variation across individuals remain poorly understood. In an attempt to understand how, and to what extent, this double symbiosis affects host gene expression, we used a transcriptomic approach to identify genes potentially regulated by symbiont characteristics, environmental conditions or both. This study was done on mussels from two contrasting populations. Results Subtractive libraries allowed the identification of about 1000 genes putatively regulated by symbiosis and/or environmental factors. Microarray analysis showed that 120 genes (3.5% of all genes) were differentially expressed between the Menez Gwen (MG) and Rainbow (Rb) vent fields. The total number of regulated genes in mussels harboring a high versus a low symbiont content did not differ significantly. With regard to the impact of symbiont content, only 1% of all genes were regulated by thiotrophic (SOX) and methanotrophic (MOX) bacteria content in MG mussels whereas 5.6% were regulated in mussels collected at Rb. MOX symbionts also impacted a higher proportion of genes than SOX in both vent fields. When host transcriptome expression was analyzed with respect to symbiont gene expression, it was related to symbiont quantity in each field. Conclusions Our study has produced a preliminary description of a transcriptomic response in a hydrothermal vent mussel host of both thiotrophic and methanotrophic symbiotic bacteria. This model can help to identify genes involved in the maintenance of symbiosis or regulated by environmental parameters. Our results provide evidence of symbiont effect on transcriptome regulation, with differences related to type of symbiont, even though the relative percentage of genes involved remains limited. Differences observed between the vent site indicate that environment strongly influences transcriptome regulation and impacts both activity and relative abundance of each symbiont. Among all these genes, those participating in recognition, the immune system, oxidative stress, and energy metabolism constitute new promising targets for extended studies on symbiosis and the effect of environmental parameters on the symbiotic relationships in B. azoricus.
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Affiliation(s)
- Isabelle Boutet
- CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29682 Roscoff, France.
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Cottin D, Shillito B, Chertemps T, Tanguy A, Léger N, Ravaux J. Identification of differentially expressed genes in the hydrothermal vent shrimp Rimicaris exoculata exposed to heat stress. Mar Genomics 2010; 3:71-8. [PMID: 21798199 DOI: 10.1016/j.margen.2010.05.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2010] [Revised: 05/21/2010] [Accepted: 05/31/2010] [Indexed: 11/16/2022]
Abstract
The deep-sea vent shrimp Rimicaris exoculata dominates the vagile megafauna at most vent sites along the Mid-Atlantic Ridge. This shrimp swarms around the hot end of the hydrothermal biotope where temperature can exceed its critical maximal temperature (33-38.5 ± 2°C). It may therefore be subjected to a thermal regime that is assumed to be stressful for animals. In this study, we used a global transcriptomic approach by constructing suppression subtractive hybridization cDNA libraries in order to identify specific up- and down-regulated genes in R. exoculata exposed to a severe heat stress (1h at 30°C). A total of 218 sequences representing potentially highly expressed genes in thermally stressed shrimp were obtained. Expression of 11 genes involved in various cell functions was quantified in control and heat shocked specimens using real-time PCR. Differential expression was observed for some specific genes such as mannose receptor C1, metalloprotease, histone H1, and hemocyanin with a strong up-regulation of several genes encoding heat shock proteins. These results suggest that R. exoculata is affected at both cellular and molecular levels by sustained exposure at 30°C. The sequenced ESTs presented here will provide an excellent basis for future thermal stress studies on deep-sea vent fauna.
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Affiliation(s)
- Delphine Cottin
- UPMC Université Paris 06, CNRS UMR 7138, laboratoire Systématique, Adaptation et Evolution, 75005, Paris, France
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