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Obirikorang KA, Appiah-Kubi R, Adjei-Boateng D, Sekey W, Duodu CP. Acute hyperthermia and hypoxia tolerance of two improved strains of nile tilapia (Oreochromis niloticus). STRESS BIOLOGY 2023; 3:21. [PMID: 37676332 PMCID: PMC10441896 DOI: 10.1007/s44154-023-00099-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/14/2023] [Indexed: 09/08/2023]
Abstract
Tilapia production in Ghana has been hit with episodes of stress and pathogen-induced mass fish kills which have anecdotally been linked to the culture of illegally imported Genetically Improved Farmed Tilapia (GIFT) strains of Nile tilapia, Oreochromis niloticus. This study was thus set up to comprehensively assess the stress tolerance of the GIFT strain and a native strain of Nile tilapia (the Akosombo strain) following exposures to hyperthermic and hypoxic stressors. In a series of experiments, oxygen consumption (MO2), aquatic surface respiration (ASR), thermal limits and hypoxia tolerance were assessed. The effects of these stressors on haematological parameters were also assessed. The GIFT strain was less tolerant of hypoxia and performed ASR at higher O2 levels than the Akosombo strain. Under progressive hypoxia, the GIFT strain exhibited higher gill ventilations frequencies (fV) than the Akosombo strain. The thermal tolerance trial indicated that the Akosombo strain of O. niloticus has higher thermotolerance than the GIFT strain and this was reflective in the higher LT50 (45.1℃) and LTmax (48℃), compared to LT50 and LTmax of 41.5℃ and 46℃ respectively. These results imply that it is crucial to consider how the GIFT strain performs under various environmental conditions and changes during culture. Particularly, raising the GIFT strain of Nile tilapia in earthen ponds rich in phytoplankton and subject to protracted episodes of extreme hypoxia may have a detrimental physiological impact on its growth and welfare.
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Affiliation(s)
- Kwasi Adu Obirikorang
- Department of Fisheries and Watershed Management, University Post Office, Kwame Nkrumah University of Science and Technology, Private Mail Bag, Kumasi, Ghana.
| | - Richard Appiah-Kubi
- Department of Fisheries and Watershed Management, University Post Office, Kwame Nkrumah University of Science and Technology, Private Mail Bag, Kumasi, Ghana
| | - Daniel Adjei-Boateng
- Department of Fisheries and Watershed Management, University Post Office, Kwame Nkrumah University of Science and Technology, Private Mail Bag, Kumasi, Ghana
| | - Wonder Sekey
- Department of Fisheries and Watershed Management, University Post Office, Kwame Nkrumah University of Science and Technology, Private Mail Bag, Kumasi, Ghana
| | - Collins Prah Duodu
- Department of Marine and Fisheries Sciences, University of Ghana, Accra, Ghana
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Lertwanakarn T, Khemthong M, Tattiyapong P, Surachetpong W. The Modulation of Immune Responses in Tilapinevirus tilapiae-Infected Fish Cells through MAPK/ERK Signalling. Viruses 2023; 15:v15040900. [PMID: 37112880 PMCID: PMC10144228 DOI: 10.3390/v15040900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023] Open
Abstract
Tilapia lake virus (TiLV) is a novel RNA virus that has been causing substantial economic losses across the global tilapia industry. Despite extensive research on potential vaccines and disease control methods, the understanding of this viral infection and the associated host cell responses remains incomplete. In this study, the involvement of the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway in the early stages of TiLV infection was investigated. The results showed a distinct pattern of ERK phosphorylation (p-ERK) upon TiLV infection in two fish cell lines, E-11 and TiB. Specifically, the p-ERK levels in the TiB cells decreased substantially, while the p-ERK levels in the E-11 cells remained constant. Interestingly, a large number of cytopathic effects were observed in the infected E-11 cells but none in the infected TiB cells. Furthermore, when p-ERK was suppressed using the inhibitor PD0325901, a significant reduction in the TiLV load and decrease in the mx and rsad2 gene expression levels were observed in the TiB cells in days 1–7 following infection. These findings highlight the role of the MAPK/ERK signalling pathway and provide new insights into the cellular mechanisms during TiLV infection that could be useful in developing new strategies to control this virus.
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Affiliation(s)
- Tuchakorn Lertwanakarn
- Department of Physiology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Matepiya Khemthong
- Department of Veterinary Microbiology and Immunology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Puntanut Tattiyapong
- Department of Veterinary Microbiology and Immunology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Win Surachetpong
- Department of Veterinary Microbiology and Immunology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
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Dourado PLR, Lima D, Mattos JJ, Bainy ACD, Grott SC, Alves TC, de Almeida EA, da Silva DGH. Fipronil impairs the GABAergic brain responses of Nile Tilapia during the transition from normoxia to acute hypoxia. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:138-152. [PMID: 36216792 DOI: 10.1002/jez.2662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Abstract
γ-aminobutyric acid (GABA) is one of the main neurotransmitters involved in the adaptation processes against the damage that hypoxia can cause to the brain. Due to its antagonist action on GABA receptors, the insecticide fipronil can turn the fish more susceptible to the negative effects of hypoxia. This study aimed to understand better if fipronil affects these GABAergic responses of Tilapia ahead to hypoxia. Oreochromis Niloticus (Nile Tilapia) were exposed for 3 and 8 h to fipronil (0.0, 0.1, and 0.5 µg.L-1 ) under normoxia (dissolved O2 > 6 mg.L-1 ) and moderate hypoxia (dissolved O2 < 2 mg.L-1 ) conditions. Briefly, hypoxia caused opposite effects on the gene transcription of the evaluated ionotropic and metabotropic GABA receptors. Unexpectedly, we obtained reduced HIF1A mRNA and brain GABA levels, mostly in the first 3 h of the experiment, for the hypoxic group compared with the normoxia one. Besides that, we also demonstrated that the insecticide fipronil impairs the brain GABAergic signaling of a hypoxia-tolerant fish during the transition from a normoxic to an acute hypoxic state. Thus, these results predict the relevant impact on the brain metabolic adaptations of fishes exposed to such stressful conditions in an aquatic environment, as well as the effects of fipronil in the GABAergic responses to hypoxia, which in turn may have ecological and physiological significance to hypoxia-tolerant fishes exposed to this insecticide.
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Affiliation(s)
- Priscila L R Dourado
- Department of Chemistry and Environmental Sciences, São Paulo State University (UNESP), São José do Rio Preto, Brazil
| | - Daína Lima
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó J Mattos
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Afonso C D Bainy
- Department of Biochemistry, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Suelen C Grott
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Thiago C Alves
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Sciences, FURB, Fundação Universidade Regional de Blumenau, Santa Catarina, Brazil
| | - Danilo G Humberto da Silva
- Campus de Três Lagoas, Universidade Federal de Mato Grosso do Sul (CPTL/UFMS), Mato Grosso do Sul, Brazil
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Non-synonymous variation and protein structure of candidate genes associated with selection in farm and wild populations of turbot (Scophthalmus maximus). Sci Rep 2023; 13:3019. [PMID: 36810752 PMCID: PMC9944912 DOI: 10.1038/s41598-023-29826-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/10/2023] [Indexed: 02/24/2023] Open
Abstract
Non-synonymous variation (NSV) of protein coding genes represents raw material for selection to improve adaptation to the diverse environmental scenarios in wild and livestock populations. Many aquatic species face variations in temperature, salinity and biological factors throughout their distribution range that is reflected by the presence of allelic clines or local adaptation. The turbot (Scophthalmus maximus) is a flatfish of great commercial value with a flourishing aquaculture which has promoted the development of genomic resources. In this study, we developed the first atlas of NSVs in the turbot genome by resequencing 10 individuals from Northeast Atlantic Ocean. More than 50,000 NSVs where detected in the ~ 21,500 coding genes of the turbot genome, and we selected 18 NSVs to be genotyped using a single Mass ARRAY multiplex on 13 wild populations and three turbot farms. We detected signals of divergent selection on several genes related to growth, circadian rhythms, osmoregulation and oxygen binding in the different scenarios evaluated. Furthermore, we explored the impact of NSVs identified on the 3D structure and functional relationship of the correspondent proteins. In summary, our study provides a strategy to identify NSVs in species with consistently annotated and assembled genomes to ascertain their role in adaptation.
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Etherington GJ, Nash W, Ciezarek A, Mehta TK, Barria A, Peñaloza C, Khan MGQ, Durrant A, Forrester N, Fraser F, Irish N, Kaithakottil GG, Lipscombe J, Trong T, Watkins C, Swarbreck D, Angiolini E, Cnaani A, Gharbi K, Houston RD, Benzie JAH, Haerty W. Chromosome-level genome sequence of the Genetically Improved Farmed Tilapia (GIFT, Oreochromis niloticus) highlights regions of introgression with O. mossambicus. BMC Genomics 2022; 23:832. [PMID: 36522771 PMCID: PMC9756657 DOI: 10.1186/s12864-022-09065-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The Nile tilapia (Oreochromis niloticus) is the third most important freshwater fish for aquaculture. Its success is directly linked to continuous breeding efforts focusing on production traits such as growth rate and weight. Among those elite strains, the Genetically Improved Farmed Tilapia (GIFT) programme initiated by WorldFish is now distributed worldwide. To accelerate the development of the GIFT strain through genomic selection, a high-quality reference genome is necessary. RESULTS Using a combination of short (10X Genomics) and long read (PacBio HiFi, PacBio CLR) sequencing and a genetic map for the GIFT strain, we generated a chromosome level genome assembly for the GIFT. Using genomes of two closely related species (O. mossambicus, O. aureus), we characterised the extent of introgression between these species and O. niloticus that has occurred during the breeding process. Over 11 Mb of O. mossambicus genomic material could be identified within the GIFT genome, including genes associated with immunity but also with traits of interest such as growth rate. CONCLUSION Because of the breeding history of elite strains, current reference genomes might not be the most suitable to support further studies into the GIFT strain. We generated a chromosome level assembly of the GIFT strain, characterising its mixed origins, and the potential contributions of introgressed regions to selected traits.
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Affiliation(s)
- G. J. Etherington
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - W. Nash
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - A. Ciezarek
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - T. K. Mehta
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - A. Barria
- grid.4305.20000 0004 1936 7988The Roslin Institute, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG UK
| | - C. Peñaloza
- grid.4305.20000 0004 1936 7988The Roslin Institute, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG UK
| | - M. G. Q. Khan
- grid.4305.20000 0004 1936 7988The Roslin Institute, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG UK ,grid.411511.10000 0001 2179 3896Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh, 2202 Bangladesh
| | - A. Durrant
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - N. Forrester
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - F. Fraser
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - N. Irish
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - G. G. Kaithakottil
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - J. Lipscombe
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - T. Trong
- grid.425190.bWorldFish, 10670 Penang, Malaysia
| | - C. Watkins
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - D. Swarbreck
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - E. Angiolini
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - A. Cnaani
- grid.410498.00000 0001 0465 9329Department of Poultry and Aquaculture, Institute of Animal Science, Agricultural Research Organization - Volcani Institute, Rishon LeTsiyon, Israel
| | - K. Gharbi
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK
| | - R. D. Houston
- grid.4305.20000 0004 1936 7988The Roslin Institute, The University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG UK ,Benchmark Genetics, 1 Pioneer Building, Edinburgh Technopole, Penicuik, EH26 0GB UK
| | | | - W. Haerty
- grid.421605.40000 0004 0447 4123Earlham Institute, Norwich Research Park, Colney Ln, Norwich, NR4 7UZ UK ,grid.8273.e0000 0001 1092 7967School of Biological Sciences, University of East Anglia, Norwich, UK
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Li R, Shu M, Liu X, Nei Z, Ye B, Wang H, Gong Y. Genome-wide identification of mitogen-activated protein kinase (MAPK) gene family in yellow catfish (Pelteobagrus fulviadraco) and their expression profiling under the challenge of Aeromonas hydrophila. JOURNAL OF FISH BIOLOGY 2022; 101:699-710. [PMID: 35751135 DOI: 10.1111/jfb.15141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
As serine/threonine protein kinases, mitogen-activated protein kinases (MAPK) take part in cellular metabolism. This work found 14 MAPK genes in the yellow catfish (Pelteobagrus fulviadraco) genome and evaluated their taxonomy, conserved domains and evolutionary linkages for a better understanding of the MAPK gene family's evolutionary relationship and antibacterial immune response. The findings revealed that several MAPK genes are activated in response to immunological and inflammatory responses. Collinearity research revealed that in yellow catfish and zebrafish, there are six pairs of highly similar MAPK genes, indicating that these genes have been more conserved throughout evolution. The MAPK gene quantification findings revealed that JNK1a, JNK1b, p38delta and p38alpha b expression levels were considerably upregulated, indicating that they act in fish innate immunity. The findings implied that MAPK genes may involve in defence against detrimental microbe in yellow catfish, which will help researchers better understand how MAPK genes work in the innate immune system.
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Affiliation(s)
- Ronghui Li
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Mingyu Shu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Xuanxuan Liu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Zhiwei Nei
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Ben Ye
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Heyu Wang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Yifu Gong
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China
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