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Priyam M, Gupta SK, Sarkar B, Naskar S, Kumar N, Foysal MJ, Sharma TR. Variation in immuno-reproductive milieu of testis in Clarias magur from pre-spawning to spawning phase: An indication towards non-canonical role of immune elements in testes. J Reprod Immunol 2022; 154:103757. [PMID: 36335659 DOI: 10.1016/j.jri.2022.103757] [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: 07/27/2022] [Revised: 09/18/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Immune mechanisms are major players in ensuring the normal functioning of testicular functions. However, apart from their role in active defence against pathogens, prior studies have also suggested a possibility for reproduction-related (non-immune) functions of certain immune elements. This study employs a comparative transcriptomics approach followed by network analysis for tracking the variation in the immuno-reproductive milieu of Clarias magur testis in spawning versus pre-spawning phase. The results show a significant modulation of both reproduction and immune-relevant genes in spawning versus pre-spawning phase. The functional enrichment of the upregulated reproduction-relevant gene network also shows immune-related biological processes which indicates a probability of involvement of these candidates in spermatogenesis-related events for switching from pre-spawning to spawning phase. The upregulated immune network is highly dense with 40 hubs, 10 cluster sub-networks and 142 functionally enriched pathways in comparison to its downregulated counterpart with only 5 hubs, 1 cluster and 1 enriched pathway. These findings indicate that the synchronisation in modulation of both reproductive and immune-related factors is critical for progression of testicular events guiding the switch from pre-spawning to spawning phase. The reproductive phase-dependent variation in plasma sex steroid levels and the selected genes for quantitative PCR also corroborated this hypothesis. The study also serves as a preliminary screening step for probable immune candidates that may be involved in reproductive functions of testis in addition to defence.
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Affiliation(s)
- Manisha Priyam
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand 834010, India
| | - Sanjay K Gupta
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand 834010, India.
| | - Biplab Sarkar
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand 834010, India
| | - Soumen Naskar
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand 834010, India
| | - Neeraj Kumar
- ICAR, National Institute of Abiotic Stress Management, Malegaon, Baramati, Pune 413115, India
| | - Md Javed Foysal
- School of Molecular and Life Sciences Curtin University, WA 6845 Australia
| | - T R Sharma
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand 834010, India
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Establishment of a Spermatogonial Stem Cell Line with Potential of Meiosis in a Hermaphroditic Fish, Epinephelus coioides. Cells 2022; 11:cells11182868. [PMID: 36139441 PMCID: PMC9496998 DOI: 10.3390/cells11182868] [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: 07/26/2022] [Revised: 09/03/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
Spermatogonial stem cells (SSCs) are unique adult stem cells capable of self-renewal and differentiation into sperm. Grouper is a protogynous hermaphroditic fish farmed widely in the tropical and subtropical seas. In this study, we established an SSC line derived from adult testis of orange-spotted grouper, Epinephelus coioides. In the presence of basic fibroblast growth factor (bFGF) and leukemia inhibitory factor (LIF), the cells could be maintained with proliferation and self-renewal over 20 months and 120 passages under in vitro culture conditions. The cells exhibited strong alkaline phosphatase activity and the characteristics of SSCs with the expression of germ cell markers, including Vasa, Dazl, and Plzf, as well as the stem cell markers Nanog, Oct4, and Ssea1. Furthermore, the cultured cells could be induced by 11-ketotestosterone treatment to highly express the meiotic markers Rec8, Sycp3, and Dmc1, and produce some spherical cells, and even sperm-like cells with a tail. The findings of this study suggested that the cultured grouper SSC line would serve as an excellent tool to study the molecular mechanisms behind SSCs self-renewal and differentiation, meiosis during spermatogenesis, and sex reversal in hermaphroditic vertebrates. Moreover, this SSC line has great application value in grouper fish aquaculture, such as germ cell transplantation, genetic manipulation, and disease research.
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Models and Molecular Markers of Spermatogonial Stem Cells in Vertebrates: To Find Models in Nonmammals. Stem Cells Int 2022; 2022:4755514. [PMID: 35685306 PMCID: PMC9174007 DOI: 10.1155/2022/4755514] [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: 11/10/2021] [Revised: 03/21/2022] [Accepted: 04/17/2022] [Indexed: 11/24/2022] Open
Abstract
Spermatogonial stem cells (SSCs) are the germline stem cells that are essential for the maintenance of spermatogenesis in the testis. However, it has not been sufficiently understood in amphibians, reptiles, and fish because numerous studies have been focused mainly on mammals. The aim of this review is to discuss scientific ways to elucidate SSC models of nonmammals in the context of the evolution of testicular organization since rodent SSC models. To further understand the SSC models in nonmammals, we point out common markers of an SSC pool (undifferentiated spermatogonia) in various types of testes where the kinetics of the SSC pool appears. This review includes the knowledge of (1) common molecular markers of vertebrate type A spermatogonia including putative SSC markers, (2) localization of the markers on the spermatogonia that have been reported in previous studies, (3) highlighting the most common markers in vertebrates, and (4) suggesting ways of finding SSC models in nonmammals.
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Begum S, Gnanasree SM, Anusha N, Senthilkumaran B. Germ cell markers in fishes - A review. AQUACULTURE AND FISHERIES 2022. [DOI: 10.1016/j.aaf.2022.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Xie X, Tichopád T, Kislik G, Langerová L, Abaffy P, Šindelka R, Franěk R, Fučíková M, Steinbach C, Shah MA, Šauman I, Chen F, Pšenička M. Isolation and Characterization of Highly Pure Type A Spermatogonia From Sterlet ( Acipenser ruthenus) Using Flow-Cytometric Cell Sorting. Front Cell Dev Biol 2021; 9:772625. [PMID: 34957105 PMCID: PMC8708567 DOI: 10.3389/fcell.2021.772625] [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: 09/08/2021] [Accepted: 11/08/2021] [Indexed: 12/17/2022] Open
Abstract
Sturgeons are among the most ancient linages of actinopterygians. At present, many sturgeon species are critically endangered. Surrogate production could be used as an affordable and a time-efficient method for endangered sturgeons. Our study established a method for identifying and isolating type A spermatogonia from different developmental stages of testes using flow cytometric cell sorting (FCM). Flow cytometric analysis of a whole testicular cell suspension showed several well-distinguished cell populations formed according to different values of light scatter parameters. FCM of these different cell populations was performed directly on glass slides for further immunocytochemistry to identify germ cells. Results showed that the cell population in gate P1 on a flow cytometry plot (with high forward scatter and high side scatter parameter values) contains the highest amount of type A spermatogonia. The sorted cell populations were characterized by expression profiles of 10 germ cell specific genes. The result confirmed that setting up for the P1 gate could precisely sort type A spermatogonia in all tested testicular developmental stages. The P2 gate, which was with lower forward scatter and side scatter values mostly, contained type B spermatogonia at a later maturing stage. Moreover, expressions of plzf, dnd, boule, and kitr were significantly higher in type A spermatogonia than in later developed germ cells. In addition, plzf was firstly found as a reliable marker to identify type A spermatogonia, which filled the gap of identification of spermatogonial stem cells in sterlet. It is expected to increase the efficiency of germ stem cell culture and transplantation with plzf identification. Our study thus first addressed a phenotypic characterization of a pure type A spermatogonia population in sterlet. FCM strategy can improve the production of sturgeons with surrogate broodstock and further the analysis of the cellular and molecular mechanisms of sturgeon germ cell development.
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Affiliation(s)
- Xuan Xie
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Tomáš Tichopád
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Galina Kislik
- Imaging Methods Core Facility at BIOCEV, Operated by Faculty of Science, Charles University in Prague, Vestec, Czechia
| | - Lucie Langerová
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Pavel Abaffy
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Radek Šindelka
- Laboratory of Gene Expression, Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czechia
| | - Roman Franěk
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Michaela Fučíková
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Christoph Steinbach
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Mujahid Ali Shah
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
| | - Ivo Šauman
- Biology Center of the Czech Academy of Sciences, Institute of Entomology, České Budějovice, Czechia.,University of South Bohemia, Faculty of Science, České Budějovice, Czechia
| | - Fan Chen
- Department of Pharmacology, C_DAT, University Medicine Greifswald, Greifswald, Germany
| | - Martin Pšenička
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Vodňany, Czechia
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Xie X, Nóbrega R, Pšenička M. Spermatogonial Stem Cells in Fish: Characterization, Isolation, Enrichment, and Recent Advances of In Vitro Culture Systems. Biomolecules 2020; 10:E644. [PMID: 32331205 PMCID: PMC7226347 DOI: 10.3390/biom10040644] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
Spermatogenesis is a continuous and dynamic developmental process, in which a single diploid spermatogonial stem cell (SSC) proliferates and differentiates to form a mature spermatozoon. Herein, we summarize the accumulated knowledge of SSCs and their distribution in the testes of teleosts. We also reviewed the primary endocrine and paracrine influence on spermatogonium self-renewal vs. differentiation in fish. To provide insight into techniques and research related to SSCs, we review available protocols and advances in enriching undifferentiated spermatogonia based on their unique physiochemical and biochemical properties, such as size, density, and differential expression of specific surface markers. We summarize in vitro germ cell culture conditions developed to maintain proliferation and survival of spermatogonia in selected fish species. In traditional culture systems, sera and feeder cells were considered to be essential for SSC self-renewal, in contrast to recently developed systems with well-defined media and growth factors to induce either SSC self-renewal or differentiation in long-term cultures. The establishment of a germ cell culture contributes to efficient SSC propagation in rare, endangered, or commercially cultured fish species for use in biotechnological manipulation, such as cryopreservation and transplantation. Finally, we discuss organ culture and three-dimensional models for in vitro investigation of fish spermatogenesis.
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Affiliation(s)
- Xuan Xie
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
| | - Rafael Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University, Botucatu, SP 18618-970, Brazil;
| | - Martin Pšenička
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic;
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Function of leukaemia inhibitory factor in spermatogenesis of a teleost fish, the medaka Oryzias latipes. ZYGOTE 2019; 27:423-431. [PMID: 31617472 DOI: 10.1017/s0967199419000558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In response to gonadotropins and androgens, testicular cells produce various molecules that control proper proliferation and differentiation of spermatogenic cells through their paracrine and autocrine actions. However, molecules functioning downstream of the hormonal stimulation are poorly understood. Leukaemia inhibitory factor (Lif) is known to maintain the pluripotency of stem cells including embryonic stem cells and primordial germ cells at least in vitro, but its actual roles in vivo remain to be elucidated. To clarify the function of Lif in teleost (medaka) testes, we examined the effects of Lif on spermatogenesis in a newly established cell culture system using a cell line (named Mtp1) derived from medaka testicular somatic cells as feeder cells. We found that addition of baculovirus-produced recombinant medaka Lif to the culture medium or co-culture with Lif-overexpressing Mtp1 cells increased the number of spermatogonia. In situ hybridization and immunohistochemical analyses of the medaka testes showed that mRNAs and proteins of Lif are expressed in spermatogonia and the surrounding Sertoli cells, with higher expression levels in type A (undifferentiated) spermatogonia than in type B (differentiated) spermatogonia. Our findings suggest that Lif regulates spermatogonial cell proliferation in the medaka.
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8
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The regulatory elements of PLZF gene are not conserved as reveled by molecular cloning and functional characterization of PLZF gene promoter of Clarias batrachus. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Valdivia M, Reyes J, Bravo Z, Cancho C, Castañeda S, Limaymanta O, Woll P, Santiani A, Gonzales GF. In vitro culture of spermatogonial stem cells isolated from adult alpaca (Vicugna pacos) testes analysed with Dolichos biflorus by flow cytometry. Andrologia 2019; 51:e13269. [PMID: 30900308 DOI: 10.1111/and.13269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/11/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023] Open
Abstract
Spermatogonial stem cell (SSC) is known for its self-renewal capacity. We have studied the in vitro proliferation of isolated SSC from adult alpaca (Vicugna pacos) testes. A total of 107 samples were evaluated of which 31 were evaluated at baseline, 36 were cultivated in DMEM and 40 in STEMPRO media. Half of the cultivated samples was analysed after 14 days, and the rest after 21 days. Round cell subpopulations were identified with FITC-DBA by flow cytometry: strongly positive DBA (sDBA+) as SSC, weakly positive DBA (wDBA+) as in early differentiation and negative DBA as differentiated. At the beginning, 4.16% of the cells were SSC, 37.61% wDBA+ while 54.12% were DBA-. After 14 days, 42.28% of SSC, 44.68% wDBA+ and 11.07% DBA- were found in DMEM while 47.09% of SSC, 32.57% wDBA+ and 18.48% DBA- in STEMPRO. After 21 days 38.66% were SSC, 52.78% wDBA and 7.65% DBA- in DMEM and on STEMPRO media 47.92% SSC, 44.20% wDBA+, 4.93% DBA-. There is a significant difference between the number of initial and SSC cultivated, as well as between DBA- (p < 0.05), while there is no significant difference between the wDBA+ (p > 0.05). Our results suggest that both culture media are appropriate for the in vitro proliferation of alpacas SSC.
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Affiliation(s)
- Martha Valdivia
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú.,Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Jhakelin Reyes
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Zezé Bravo
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Christian Cancho
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Sergio Castañeda
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Orlando Limaymanta
- Laboratory of Reproductive Physiology, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Patricia Woll
- Biochemical Laboratory, Biological Sciences Faculty, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Alexei Santiani
- Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Gustavo F Gonzales
- Endocrine and Reproductive Laboratory, Department of Biological and Physiological Science, Laboratory of Investigation and Development (LID), Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, Lima, Perú
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Lacerda SMSN, Martinez ERM, Mura ILDD, Doretto LB, Costa GMJ, Silva MA, Digmayer M, Nóbrega RH, França LR. Duration of spermatogenesis and identification of spermatogonial stem cell markers in a Neotropical catfish, Jundiá (Rhamdia quelen). Gen Comp Endocrinol 2019; 273:249-259. [PMID: 30391241 DOI: 10.1016/j.ygcen.2018.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 12/24/2022]
Abstract
Spermatogenesis is a process driven by stem cell, where germ cell cycle is under the control of a specific genotype species. Considering that Jundiá (Rhamdia quelen) is a Neotropical catfish with great economical importance and useful experimental model, little information is available on basic aspects of its reproductive biology, especially on spermatogenesis. As a result, this study aimed to characterize the male germ cells, estimate the duration of spermatogenesis and evaluate the expression of selected stem cell genes in Jundiá testis. Similar to other fish species, our results showed a remarkable decrease of germ cell nuclear volume during Jundiá spermatogenesis, particularly from type A undifferentiated to late type B spermatogonia and from diplotene to late spermatids. Using a S-phase marker, bromodeoxyuridine (BrdU), the combined duration of meiotic and spermiogenic phases in this species was estimated in approximately 7 days. This is considered very short when compared to mammals, where spermatogenesis last from 30 to 74 days. Selected stem cell genes were partially sequenced and characterized in Jundiá testis. Expression analysis showed higher plzf and pou5f3 mRNA levels in the cell fractions enriched by type A undifferentiated spermatogonia. These results were further confirmed by in situ hybridization that showed strong signal of plzf and pou5f3 mRNA in type A undifferentiated spermatogonia. Altogether, these information will expand our knowledge of the reproductive biology of this species, contributing to improve its production and management, and also for biotechnological applications, such as germ cell transplantation.
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Affiliation(s)
- S M S N Lacerda
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - E R M Martinez
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - I L D D Mura
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - L B Doretto
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - G M J Costa
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - M A Silva
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - M Digmayer
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil
| | - R H Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University, Botucatu, São Paulo, Brazil.
| | - L R França
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; National Institute for Amazonian Research, Manaus, AM, Brazil.
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11
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Barman HK, Rasal KD, Chakrapani V, Ninawe AS, Vengayil DT, Asrafuzzaman S, Sundaray JK, Jayasankar P. Gene editing tools: state-of-the-art and the road ahead for the model and non-model fishes. Transgenic Res 2017; 26:577-589. [PMID: 28681201 DOI: 10.1007/s11248-017-0030-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 06/21/2017] [Indexed: 01/07/2023]
Abstract
Advancements in the DNA sequencing technologies and computational biology have revolutionized genome/transcriptome sequencing of non-model fishes at an affordable cost. This has led to a paradigm shift with regard to our heightened understandings of structure-functional relationships of genes at a global level, from model animals/fishes to non-model large animals/fishes. Whole genome/transcriptome sequencing technologies were supplemented with the series of discoveries in gene editing tools, which are being used to modify genes at pre-determined positions using programmable nucleases to explore their respective in vivo functions. For a long time, targeted gene disruption experiments were mostly restricted to embryonic stem cells, advances in gene editing technologies such as zinc finger nuclease, transcriptional activator-like effector nucleases and CRISPR (clustered regulatory interspaced short palindromic repeats)/CRISPR-associated nucleases have facilitated targeted genetic modifications beyond stem cells to a wide range of somatic cell lines across species from laboratory animals to farmed animals/fishes. In this review, we discuss use of different gene editing tools and the strategic implications in fish species for basic and applied biology research.
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Affiliation(s)
- Hirak Kumar Barman
- Fish Genetics and Biotechnology Division, ICAR - Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, 751002, India.
| | - Kiran Dashrath Rasal
- Fish Genetics and Biotechnology Division, ICAR - Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, 751002, India
| | - Vemulawada Chakrapani
- Fish Genetics and Biotechnology Division, ICAR - Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, 751002, India
| | - A S Ninawe
- Department of Biotechnology, Ministry of Science and Technology, CGO Complex, Block 3, Lodhi Road, New Delhi, 110003, India
| | - Doyil T Vengayil
- Science and Engineering Research Board (SERB), 5 and 5A, Lower Ground Floor, Vasant Square Mall, Sector-B, Pocket - 5, Vasantkunj, New Delhi, 110 070, India
| | - Syed Asrafuzzaman
- Science and Engineering Research Board (SERB), 5 and 5A, Lower Ground Floor, Vasant Square Mall, Sector-B, Pocket - 5, Vasantkunj, New Delhi, 110 070, India
| | - Jitendra K Sundaray
- Fish Genetics and Biotechnology Division, ICAR - Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, 751002, India
| | - Pallipuram Jayasankar
- Fish Genetics and Biotechnology Division, ICAR - Central Institute of Freshwater Aquaculture, Bhubaneswar, Odisha, 751002, India
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