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Calik A, Emami NK, White MB, Dalloul RA. Fate of transgenic soybean DNA and immune response of broilers fed genetically modified DP-3Ø5423-1 soybean. Poult Sci 2024; 103:103499. [PMID: 38330889 PMCID: PMC10864803 DOI: 10.1016/j.psj.2024.103499] [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: 10/24/2023] [Revised: 01/02/2024] [Accepted: 01/21/2024] [Indexed: 02/10/2024] Open
Abstract
Increased use of genetically modified (GM) plants in the food and feed industry has raised several concerns about the presence of unwanted genes in the food chain and potential associated health risks. In recent years, several studies have compared the nutrient contents of GM crops to conventional counterparts, and some have also tracked the fate of novel DNA fragments and proteins in the gastrointestinal (GIT) and their presence in several tissues. This study was conducted to investigate the fate of transgenic PHP19340A DNA fragment containing gm-fad2-1 (Soybean Event DP-3Ø5423-1) gene in digestive tract contents, blood, internal organs, and muscle tissues. The effects of feeding DP-3Ø5423-1 full-fat soybean meal (FFSBM) to broiler chickens on immune response and blood profiles were also evaluated on d 35. Day-old Ross 308 birds (n = 480) were randomly allocated to 24 floor pens in a 2 × 2 factorial arrangement with diet and gender as main factors. Birds were fed diets containing 20% of either DP-3Ø5423-1 or non-GM FFSBM for 35 d. Data were subjected to a 2-way ANOVA using the GLM procedure of JMP (Pro13). Based on PCR analysis, transgenic PHP19340A DNA fragment containing gm-fad2-1 gene was degraded throughout the digestive system to reach undetectable level in the cecal digesta. Moreover, there was no transgenic gene translocation to blood, organs, or muscle tissue. Feeding DP-3Ø5423-1 FFSBM to broilers had no effect on mRNA abundance of IL-1β, IL-2, IL-6, IL-12B, IL-17A, IFNγ, TNFα, and NF-κB in the spleen or on blood profile. In conclusion, these findings indicate that the examined transgenic fragment in DP-3Ø5423-1 FFSBM progressively degraded in the GIT and did not translocate into blood or tissues. Along with the immune response and blood profile findings, it can be assumed that DP-3Ø5423-1 soybean is safe and unlikely to pose any health risks to broilers or consumers.
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Affiliation(s)
- Ali Calik
- Avian Immunobiology Laboratory, Department of Poultry Science, University of Georgia, Athens, GA 30602, USA; Department of Animal Nutrition & Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, 06110, Turkey
| | - Nima K Emami
- Avian Immunobiology Laboratory, Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Mallory B White
- School of STEM, Virginia Western Community College, Roanoke, VA 24015, USA
| | - Rami A Dalloul
- Avian Immunobiology Laboratory, Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
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2
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Pexas G, Kyriazakis I. Hotspots and bottlenecks for the enhancement of the environmental sustainability of pig systems, with emphasis on European pig systems. Porcine Health Manag 2023; 9:53. [PMID: 37974286 PMCID: PMC10652603 DOI: 10.1186/s40813-023-00347-5] [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: 06/14/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
Although pig systems start from a favourable baseline of environmental impact compared to other livestock systems, there is still scope to reduce their emissions and further mitigate associated impacts, especially in relation to nitrogen and phosphorous emissions. Key environmental impact hotspots of pig production systems are activities associated with feed production and manure management, as well as direct emissions (such as methane) from the animals and energy use. A major contributor to the environmental impacts associated with pig feed is the inclusion of soya in pig diets, especially since European pig systems rely heavily on soya imported from areas of the globe where crop production is associated with significant impacts of land use change, deforestation, carbon emissions, and loss of biodiversity. The "finishing" pig production stage contributes most to these environmental impacts, due to the amount of feed consumed, the efficiency with which feed is utilised, and the amount of manure produced during this stage. By definition therefore, any substantial improvements pig system environmental impact would arise from changes in feed production and manure management. In this paper, we consider potential solutions towards system environmental sustainability at these pig system components, as well as the bottlenecks that inhibit their effective implementation at the desired pace and magnitude. Examples include the quest for alternative protein sources to soya, the limits (perceived or real) to the genetic improvement of pigs, and the implementation of alternative manure management strategies, such as production of biogas through anaerobic digestion. The review identifies and discusses areas that future efforts can focus on, to further advance understanding around the potential sustainability benefits of modifications at various pig system components, and key sustainability trade-offs across the environment-economy-society pillars associated with synergistic and antagonistic effects when joint implementation of multiple solutions is considered. In this way, the review opens a discussion to facilitate the development of holistic decision support tools for pig farm management that account for interactions between the "feed * animal * manure" system components and trade-offs between sustainability priorities (e.g., environmental vs economic performance of pig system; welfare improvements vs environmental impacts).
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Affiliation(s)
- Georgios Pexas
- School of Water, Energy and Environment, Cranfield University, Cranfield, UK.
| | - Ilias Kyriazakis
- Institute for Global Food Security, Queen's University Belfast, Belfast, UK
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Patel A, Miles A, Strackhouse T, Cook L, Leng S, Patel S, Klinger K, Rudrabhatla S, Potlakayala SD. Methods of crop improvement and applications towards fortifying food security. Front Genome Ed 2023; 5:1171969. [PMID: 37484652 PMCID: PMC10361821 DOI: 10.3389/fgeed.2023.1171969] [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: 02/22/2023] [Accepted: 06/12/2023] [Indexed: 07/25/2023] Open
Abstract
Agriculture has supported human life from the beginning of civilization, despite a plethora of biotic (pests, pathogens) and abiotic (drought, cold) stressors being exerted on the global food demand. In the past 50 years, the enhanced understanding of cellular and molecular mechanisms in plants has led to novel innovations in biotechnology, resulting in the introduction of desired genes/traits through plant genetic engineering. Targeted genome editing technologies such as Zinc-Finger Nucleases (ZFNs), Transcription Activator-Like Effector Nucleases (TALENs), and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) have emerged as powerful tools for crop improvement. This new CRISPR technology is proving to be an efficient and straightforward process with low cost. It possesses applicability across most plant species, targets multiple genes, and is being used to engineer plant metabolic pathways to create resistance to pathogens and abiotic stressors. These novel genome editing (GE) technologies are poised to meet the UN's sustainable development goals of "zero hunger" and "good human health and wellbeing." These technologies could be more efficient in developing transgenic crops and aid in speeding up the regulatory approvals and risk assessments conducted by the US Departments of Agriculture (USDA), Food and Drug Administration (FDA), and Environmental Protection Agency (EPA).
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Affiliation(s)
- Aayushi Patel
- Penn State Harrisburg, Middletown, PA, United States
| | - Andrew Miles
- Penn State University Park, State College, University Park, PA, United States
| | | | - Logan Cook
- Penn State Harrisburg, Middletown, PA, United States
| | - Sining Leng
- Shanghai United Cell Biotechnology Co Ltd, Shanghai, China
| | - Shrina Patel
- Penn State Harrisburg, Middletown, PA, United States
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R S, Nyika J, Yadav S, Mackolil J, G RP, Workie E, Ragupathy R, Ramasundaram P. Genetically modified foods: bibliometric analysis on consumer perception and preference. GM CROPS & FOOD 2022; 13:65-85. [PMID: 35400312 PMCID: PMC9009926 DOI: 10.1080/21645698.2022.2038525] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this study, we present the bibliometric trends emerging from research outputs on consumer perception and preference for genetically modified (GM) foods and policy prescriptions for enabling the consumption using VOSviewer visualization software. Consumers’ positive response is largely influenced by the decision of the governments to ban or approve the GM crops cultivation. Similarly, the public support increases when the potential benefits of the technology are well articulated, consumption increases with a price discount, people’s trust on the government and belief in science increases with a positive influence by the media. Europe and the USA are the first region and country, respectively, in terms of the number of active institutions per research output, per-capita GDP publication and citations. We suggest research-, agri-food industries-, and society-oriented policies to be implemented by the stakeholders to ensure the safety of GM foods, encourage consumer-based studies, and increase public awareness toward these food products.
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Affiliation(s)
- Sendhil R
- ICAR-Indian Institute of Wheat and Barley Research, Karnal, India
| | - Joan Nyika
- Technical University of Kenya, Nairobi, Kenya
| | - Sheel Yadav
- ICAR-National Bureau of Plant Genetic Resources, New Delhi, India
| | | | - Rama Prashat G
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Endashaw Workie
- School of Environmental science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Raja Ragupathy
- Lethbridge Research and Development Centre, Agriculture & Agri Food Canada, Alberta, Canada
| | - P Ramasundaram
- National Agricultural Higher Education Project, Indian Council of Agricultural Research, New Delhi, India
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Gupta P, Hurburgh CR, Bowers EL, Mosher GA. Application of fault tree analysis: Failure mode and effect analysis to evaluate critical factors influencing non‐GM segregation in the US grain and feed supply chain. Cereal Chem 2022. [DOI: 10.1002/cche.10601] [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]
Affiliation(s)
- Priyanka Gupta
- Department of Agricultural and Biosystems Engineering Iowa State University Ames IA USA
| | - Charles R. Hurburgh
- Department of Agricultural and Biosystems Engineering Iowa State University Ames IA USA
| | - Erin L. Bowers
- Department of Agricultural and Biosystems Engineering Iowa State University Ames IA USA
| | - Gretchen A. Mosher
- Department of Agricultural and Biosystems Engineering Iowa State University Ames IA USA
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Alternative Protein Sources vs. GM Soybean Meal as Feedstuff for Pigs-Meat Quality and Health-Promoting Indicators. Animals (Basel) 2021; 11:ani11010177. [PMID: 33451066 PMCID: PMC7828514 DOI: 10.3390/ani11010177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 11/17/2022] Open
Abstract
This study aimed to explain the possibility of partial replacement of genetically-modified soybean meal (SBM GM) with pea seeds and rapeseed meal (RSM) in complete feed mixtures for growing-finishing pigs and to determine its impact on meat quality and health-promoting indices. The pigs (n = 50) were randomly divided into five groups, 10 animals each (gilts and barrows, 1:1, 3-breed: ♀ (landrace × yorkshire) × ♂ duroc), including the control group (C) and four experimental groups (E1, E2, E3, E4), and fed complete feed mixtures. The SBM GM was the only protein source in feed mixtures for control pigs. In feed mixtures for E1-E4 groups, it was partially replaced with pea seed doses of 5.0%, 10.0%, 15.0%, and 17.5% in groups E1, E2, E3, and E4, respectively. The feed mixtures were iso-energetic and iso-protein. After completed fattening, the animals were slaughtered. M. longissimus lumborum was sampled for analyses of the chemical and physical traits. The fatty acid profile determined in intramuscular fat (IMF) was used to compute the values of the health-promoting indices. The chemical and physical characteristics of meat were comparable in all groups. The study showed a dietetically-beneficial decrease in the values of atherogenicity index (AI), thrombogenicity index (TI), and saturation (S/P) in the meat of the experimental pigs vs. control group. The values of most of the analyzed quality attributes of pork justify using alternative protein sources as partial SBM GM replacers in diets for growing-finishing pigs in sustainable animal production.
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Straková E, Všetičková L, Kutlvašr M, Timová I, Suchý P. Beneficial effects of substituting soybean meal for white lupin ( Lupinus albus, cv. Zulika) meal on the biochemical blood parameters of laying hens. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1884006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Eva Straková
- Ústav chovu zvířat, výživy zvířat a biochemie, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Lucie Všetičková
- Ústav chovu zvířat, výživy zvířat a biochemie, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Martin Kutlvašr
- Ústav chovu zvířat, výživy zvířat a biochemie, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Ivana Timová
- Ústav chovu zvířat, výživy zvířat a biochemie, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Pavel Suchý
- Ústav chovu zvířat, výživy zvířat a biochemie, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
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Singh RK, Prasad A, Muthamilarasan M, Parida SK, Prasad M. Breeding and biotechnological interventions for trait improvement: status and prospects. PLANTA 2020; 252:54. [PMID: 32948920 PMCID: PMC7500504 DOI: 10.1007/s00425-020-03465-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/12/2020] [Indexed: 05/06/2023]
Abstract
Present review describes the molecular tools and strategies deployed in the trait discovery and improvement of major crops. The prospects and challenges associated with these approaches are discussed. Crop improvement relies on modulating the genes and genomic regions underlying key traits, either directly or indirectly. Direct approaches include overexpression, RNA interference, genome editing, etc., while breeding majorly constitutes the indirect approach. With the advent of latest tools and technologies, these strategies could hasten the improvement of crop species. Next-generation sequencing, high-throughput genotyping, precision editing, use of space technology for accelerated growth, etc. had provided a new dimension to crop improvement programmes that work towards delivering better varieties to cope up with the challenges. Also, studies have widened from understanding the response of plants to single stress to combined stress, which provides insights into the molecular mechanisms regulating tolerance to more than one stress at a given point of time. Altogether, next-generation genetics and genomics had made tremendous progress in delivering improved varieties; however, the scope still exists to expand its horizon to other species that remain underutilized. In this context, the present review systematically analyses the different genomics approaches that are deployed for trait discovery and improvement in major species that could serve as a roadmap for executing similar strategies in other crop species. The application, pros, and cons, and scope for improvement of each approach have been discussed with examples, and altogether, the review provides comprehensive coverage on the advances in genomics to meet the ever-growing demands for agricultural produce.
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Affiliation(s)
- Roshan Kumar Singh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Ashish Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Mehanathan Muthamilarasan
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, 500046, India
| | - Swarup K Parida
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Manoj Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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9
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McNaughton J, Roberts M, Smith B, Carlson A, Mathesius C, Roper J, Zimmermann C, Walker C, Huang E, Herman R. Evaluation of broiler performance and carcass yields when fed diets containing maize grain from transgenic product DP-2Ø2216-6. J APPL POULTRY RES 2020. [DOI: 10.1016/j.japr.2020.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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10
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Alzeer J, Rieder U, Hadeed KA. Good agricultural practices and its compatibility with Halal standards. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Guo X, Zhang J, Li Y, Yang J, Li Y, Dong C, Liu G, Lian Z, Zhang X. Evaluating the effect of TLR4-overexpressing on the transcriptome profile in ovine peripheral blood mononuclear cells. ACTA ACUST UNITED AC 2020; 27:13. [PMID: 32760682 PMCID: PMC7392728 DOI: 10.1186/s40709-020-00124-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 07/20/2020] [Indexed: 01/02/2023]
Abstract
Background Toll-like receptor 4 (TLR4) plays an important role in the elimination of Gram-negative bacteria infections and the initiation of antiinflammatory response. Using the technology of pronuclear microinjection, genetically modified (GM) sheep with TLR4 overexpression were generated. Previous studies have shown that these GM sheep exhibited a higher inflammatory response to Gram-negative bacteria infection than wild type (WT) sheep. In order to evaluate the gene expression of GM sheep and study the co-expressed and downstream genes for TLR4, peripheral blood mononuclear cells (PBMC) from TLR4-overexpressing (Tg) and wild type (WT) sheep were selected to discover the transcriptomic differences using RNA-Seq. Result An average of 18,754 and 19,530 known genes were identified in the Tg and WT libraries, respectively. A total of 338 known genes and 85 novel transcripts were found to be differentially expressed in the two libraries (p < 0.01). A differentially expressed genes (DEGs) enrichment analysis showed that the GO terms of inflammatory response, cell recognition, etc. were significantly (FDR < 0.05) enriched. Furthermore, the above DEGs were significantly (FDR < 0.05) enriched in the sole KEGG pathway of the Phagosome. Real-time PCR showed the OLR1, TLR4 and CD14 genes to be differentially expressed in the two groups, which validated the DEGs data. Conclusions The RNA-Seq results revealed that the overexpressed TLR4 in our experiment strengthened the ovine innate immune response by increasing the phagocytosis in PBMC.
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Affiliation(s)
- Xiaofei Guo
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China
| | - Jinlong Zhang
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China.,College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Yao Li
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Jing Yang
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China
| | - Yihai Li
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China
| | - Chunxiao Dong
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China
| | - Guoshi Liu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Zhengxing Lian
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Xiaosheng Zhang
- Tianjin Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin, 300381 China
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12
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Kumar K, Gambhir G, Dass A, Tripathi AK, Singh A, Jha AK, Yadava P, Choudhary M, Rakshit S. Genetically modified crops: current status and future prospects. PLANTA 2020; 251:91. [PMID: 32236850 DOI: 10.1007/s00425-020-03372-8] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 02/28/2020] [Indexed: 05/20/2023]
Abstract
While transgenic technology has heralded a new era in crop improvement, several concerns have precluded their widespread acceptance. Alternative technologies, such as cisgenesis and genome-editing may address many of such issues and facilitate the development of genetically engineered crop varieties with multiple favourable traits. Genetic engineering and plant transformation have played a pivotal role in crop improvement via introducing beneficial foreign gene(s) or silencing the expression of endogenous gene(s) in crop plants. Genetically modified crops possess one or more useful traits, such as, herbicide tolerance, insect resistance, abiotic stress tolerance, disease resistance, and nutritional improvement. To date, nearly 525 different transgenic events in 32 crops have been approved for cultivation in different parts of the world. The adoption of transgenic technology has been shown to increase crop yields, reduce pesticide and insecticide use, reduce CO2 emissions, and decrease the cost of crop production. However, widespread adoption of transgenic crops carrying foreign genes faces roadblocks due to concerns of potential toxicity and allergenicity to human beings, potential environmental risks, such as chances of gene flow, adverse effects on non-target organisms, evolution of resistance in weeds and insects etc. These concerns have prompted the adoption of alternative technologies like cisgenesis, intragenesis, and most recently, genome editing. Some of these alternative technologies can be utilized to develop crop plants that are free from any foreign gene hence, it is expected that such crops might achieve higher consumer acceptance as compared to the transgenic crops and would get faster regulatory approvals. In this review, we present a comprehensive update on the current status of the genetically modified (GM) crops under cultivation. We also discuss the issues affecting widespread adoption of transgenic GM crops and comment upon the recent tools and techniques developed to address some of these concerns.
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Affiliation(s)
- Krishan Kumar
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, 110012, India.
| | - Geetika Gambhir
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, 110012, India
| | - Abhishek Dass
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, 110012, India
| | - Amit Kumar Tripathi
- National Institute for Research in Environmental Health, Bhopal, 462001, India
| | - Alla Singh
- ICAR-Indian Institute of Maize Research, PAU Campus, Ludhiana, 141004, India
| | - Abhishek Kumar Jha
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, 110012, India
| | - Pranjal Yadava
- ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi, 110012, India
| | - Mukesh Choudhary
- ICAR-Indian Institute of Maize Research, PAU Campus, Ludhiana, 141004, India
| | - Sujay Rakshit
- ICAR-Indian Institute of Maize Research, PAU Campus, Ludhiana, 141004, India
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Montagu MV. The future of plant biotechnology in a globalized and environmentally endangered world. Genet Mol Biol 2020; 43:e20190040. [PMID: 31930275 PMCID: PMC7216575 DOI: 10.1590/1678-4685-gmb-2019-0040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/20/2019] [Indexed: 11/22/2022] Open
Abstract
This paper draws on the importance of science-based agriculture in order to throw light on the way scientific achievements are at the basis of modern civilization. An overview of literature on plant biotechnology innovations and the need to steer agriculture towards sustainability introduces a series of perspectives on how plant biotech can contribute to the major challenge of feeding our super population with enough nutritious food without further compromise of the environment. The paper argues that science alone will not solve problems. Three major forces - science, the economy and society - shape our modern world. There is a need for a new social contract to harmonize these forces. The deployment of the technologies must be done on the basis of ethical and moral values.
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Affiliation(s)
- Marc Van Montagu
- VIB-International Plant Biotechnology Outreach, Ghent University, Ghent, Belgium
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14
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Stein T, Ran G, Bohmer M, Sharbati S, Einspanier R. Expression profiling of key pathways in rat liver after a one-year feeding trial with transgenic maize MON810. Sci Rep 2019; 9:18915. [PMID: 31831783 PMCID: PMC6908735 DOI: 10.1038/s41598-019-55375-5] [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] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/22/2019] [Indexed: 12/13/2022] Open
Abstract
In a recent one-year feeding study, we observed no adverse effects on tissue level in organs of rats fed with the genetically-modified maize MON810. Here, we assessed RNA expression levels of 86 key genes of the apoptosis-, NF-кB-, DNA-damage response (DDR)-, and unfolded-protein response (UPR) pathways by RT-qPCR in the rat liver. Male and female rats were fed either with 33% MON810 (GMO), isogenic- (ISO), or conventional maize (CONV) and RNAs were quantified from eight rats from each of the six feeding groups. Only Birc2 transcript showed a significant (p ≤ 0.05) consistent difference of ≥1.5-fold between the GMO and ISO groups in both sexes. Unsupervised cluster analysis showed a strong separation of male and female rats, but no clustering of the feeding groups. Individual analysis of the pathways did not show any clustering of the male or female feeding groups either, though transcript levels of UPR pathway-associated genes caused some clustering of the male GMO and CONV feeding group samples. These differences were not seen between the GMO and ISO control or within the female cohort. Our data therefore does not support an adverse effect on rat liver RNA expression through the long-term feeding of MON810 compared to isogenic control maize.
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Affiliation(s)
- Torsten Stein
- Institute of Veterinary Biochemistry, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
| | - Guangyao Ran
- Institute of Veterinary Biochemistry, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
- Department of Liquor Making Engineering, Moutai Institute, Luban Avenue, 564507, Renhuai, China
| | - Marc Bohmer
- Institute of Veterinary Biochemistry, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
- SGS Institute Fresenius GmbH, Life Sciences Services, Tegeler Weg 33, 10589, Berlin, Germany
| | - Soroush Sharbati
- Institute of Veterinary Biochemistry, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany
| | - Ralf Einspanier
- Institute of Veterinary Biochemistry, Freie Universität Berlin, Oertzenweg 19b, 14163, Berlin, Germany.
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15
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Wang Y, Wang Z, Guo H, Huang J, Li X, Sun Q, Wang B, Xie E, Jiang L, Xia Q. Potential of transferring transgenic DNA from silkworm to chicken. Int J Biol Macromol 2019; 142:311-319. [PMID: 31593736 DOI: 10.1016/j.ijbiomac.2019.09.102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/20/2019] [Accepted: 09/13/2019] [Indexed: 01/29/2023]
Abstract
Safety assessment must be conducted before the commercial release of transgenic silkworms. This study was conducted to assess the potential of transferring transgenic DNA from silkworms to other organisms. One hundred hatched male chickens were evenly assigned into 4 groups (T1-4). Groups T1-3 were fed transgenic silkworms P3+5UI with enhanced green fluorescent protein DNA (EGFP) inserted, A4SOR with superoxide reductase DNA (SOR) inserted, and normal silkworm, respectively. Each chicken was fed one silkworm larva every day for 3 weeks. T4 was the normal feeding control. Twenty chickens were randomly selected from each treatment for sacrifice at 22 days of age. The serum was collected individually for biochemical examination, revealing no difference in the analyzed serum parameters between T4 and T1-3. DNA from the duodenum, jejunum, ileum, liver, kidney, and jejunal digesta was extracted for PCR analysis of EGFP, SOR, silkworm housekeeping gene TIF-4A, and chicken ovalbumin gene. No transgenic DNA or TIF-4A was detected in the digesta and tissues of chickens. The same results were observed in chicken upon increasing the amount and frequency of feeding transgenic silkworms, suggesting that the transgenic DNA from silkworms was degraded in the digestive tract and not transferred into the tissues of chicken. This study revealed that transferr recombinant DNA from transgenic silkworm to another organism is unlikely.
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Affiliation(s)
- Yumei Wang
- Biological Science Research Center, Southwest University, Chongqing 400715, China
| | - Zili Wang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Huizhen Guo
- Biological Science Research Center, Southwest University, Chongqing 400715, China
| | - Jing Huang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Xueying Li
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Qiang Sun
- Biological Science Research Center, Southwest University, Chongqing 400715, China
| | - Bingbing Wang
- Biological Science Research Center, Southwest University, Chongqing 400715, China
| | - Enyu Xie
- Biological Science Research Center, Southwest University, Chongqing 400715, China
| | - Liang Jiang
- Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China.
| | - Qingyou Xia
- Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China.
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16
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Talyn B, Lemon R, Badoella M, Melchiorre D, Villalobos M, Elias R, Muller K, Santos M, Melchiorre E. Roundup ®, but Not Roundup-Ready ® Corn, Increases Mortality of Drosophila melanogaster. TOXICS 2019; 7:E38. [PMID: 31370250 PMCID: PMC6789507 DOI: 10.3390/toxics7030038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 02/06/2023]
Abstract
Genetically modified foods have become pervasive in diets of people living in the US. By far the most common genetically modified foods either tolerate herbicide application (HT) or produce endogenous insecticide (Bt). To determine whether these toxicological effects result from genetic modification per se, or from the increase in herbicide or insecticide residues present on the food, we exposed fruit flies, Drosophila melanogaster, to food containing HT corn that had been sprayed with the glyphosate-based herbicide Roundup®, HT corn that had not been sprayed with Roundup®, or Roundup® in a variety of known glyphosate concentrations and formulations. While neither lifespan nor reproductive behaviors were affected by HT corn, addition of Roundup® increased mortality with an LC50 of 7.1 g/L for males and 11.4 g/L for females after 2 days of exposure. Given the many genetic tools available, Drosophila are an excellent model system for future studies about genetic and biochemical mechanisms of glyphosate toxicity.
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Affiliation(s)
- Becky Talyn
- College of Natural Science, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA.
| | - Rachael Lemon
- Biology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | - Maryam Badoella
- Biology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | | | - Maryori Villalobos
- Biology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | - Raquel Elias
- Biology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | - Kelly Muller
- Chemistry and Biochemistry Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | - Maggie Santos
- Biology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
| | - Erik Melchiorre
- Geology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, USA
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17
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Preface to the special issue of Food and Chemical Toxicology on the outcomes of the MARLON project on veterinary epidemiology of potential health impacts of genetically modified feeds in livestock. Food Chem Toxicol 2018. [DOI: 10.1016/j.fct.2018.04.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Vince L, Kleter GA, Kostov K, Pfeiffer DU, Guitian J. The applicability of animal health surveillance systems for post-market monitoring of potential adverse effects of genetically modified (GM) feed. Food Chem Toxicol 2018; 117:79-88. [PMID: 29680271 DOI: 10.1016/j.fct.2018.04.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 04/12/2018] [Accepted: 04/16/2018] [Indexed: 11/16/2022]
Abstract
A facultative post market monitoring of potential health impacts of genetically modified (GM) feedstuffs on livestock consuming these feeds after pre-market risk assessment is under ongoing consideration. Within the IPAFEED database, scientific studies on health effects beyond performance in livestock and the results of a systematic search for evidence of outcome effects due to GM feed are consolidated. These outcomes were reviewed and checked for consistency in order to identify plausible syndromes suitable for conducting surveillance. The 24 selected studies showed no consistent changes in any health parameter. There were no repeated studies in any species by GM crop type and animal species. As such, there is insufficient evidence to inform the design of surveillance systems for detecting known adverse effects. Animal health surveillance systems have been proposed for the post market monitoring of potential adverse effects in animals. Such systems were evaluated for their applicability to the detection of hypothetical adverse effects and their strengths and weaknesses to detect syndromes of concern are presented. For known adverse effects, applied controlled post-market studies may yield conclusive and high-quality evidence. For detecting unknown adverse effects, the use of existing surveillance systems may still be of interest. A simulation tool developed within the project can be adapted and applied to existing surveillance systems to explore their applicability to the detection of potential adverse effects of GM feed.
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Affiliation(s)
- L Vince
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom.
| | - G A Kleter
- RIKILT Wageningen University & Research, Wageningen, The Netherlands
| | - K Kostov
- Agribioinstitute, Sofia, Bulgaria
| | - D U Pfeiffer
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom; College of Veterinary Medicine & Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region
| | - J Guitian
- Veterinary Epidemiology, Economics and Public Health Group, The Royal Veterinary College, University of London, United Kingdom
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Liu Q, Yang W, Li M, Wu Y, Wang Y, Wu S, Gao H, Han Y, Yang F, Feng S, Zeng S. Effects of 60-Week Feeding Diet Containing Bt Rice Expressing the Cry1Ab Protein on the Offspring of Inbred Wuzhishan Pigs Fed the Same Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10300-10309. [PMID: 29113431 DOI: 10.1021/acs.jafc.7b04067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We evaluated the chronic effects of Bt rice carrying the Cry1Ab protein (1.64 mg/kg) on offspring of highly inbred WZSP, fed with Bt rice for 360 days, in a 60-week feeding study. The WZSP offspring (n = 27) were assigned to two groups (Minghui86 group, female n = 6, male n = 5; Bt group, female n = 11, male n = 5). The average obtained Cry1Ab protein dosage for female and male pigs was 1.003 and 1.234 mg/kg body weight after 10 weeks of feeding, respectively. The experimental feed in the study was nutritionally matched in both groups. The average daily gain and feed conversion ratio of the females in week 3 and males from weeks 1 to 10 were different between the Bt and Minghui86 groups (P < 0.05), and the body weight of the male pigs in week 2 was greater in the Minghui86 group than that of the Bt group (P < 0.05). No other differences were observed, and there were no significant differences in the serum sex steroid level, hematology parameters, relative organ weights, or histopathology. Although differences in some serum chemistry parameters (alanine aminotransferase of female pigs and alkaline phosphatase of male pigs) were observed, they were not considered treatment-related. On the basis of these results, long-term intake of transgenic rice carrying Cry1Ab protein exerts no unintended adverse effects on WZSP offspring.
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Affiliation(s)
- Qiang Liu
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Weigang Yang
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Mingjie Li
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Yi Wu
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Yingzheng Wang
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Shuaishuai Wu
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Hui Gao
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Ying Han
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Feng Yang
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
| | - Shutang Feng
- Institute of Animal Sciences, China Academy of Agricultural Sciences , Beijing 100293, China
| | - Shenming Zeng
- Laboratory of Animal Embryonic Biotechnology, National Engineering Laboratory for Animal Breeding,l Key Laboratory of Animal Genetics, Breeding, and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University , Beijing 100094, China
- College of Animal Science and Technology, Yangzhou University , Yangzhou 225009, China
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