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Wang D, Fei Y, Niu C, Lu S, Chen X, Wu Y, He P, Zhang X, Chen H, Wang H, Gao Y. Proficiency testing for event-specific quantification of genetically modified maize MON87427: Performance assessment based on the metrologically traceable reference values as assigned values. Food Chem 2024; 453:139668. [PMID: 38805943 DOI: 10.1016/j.foodchem.2024.139668] [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: 01/16/2024] [Revised: 04/08/2024] [Accepted: 05/12/2024] [Indexed: 05/30/2024]
Abstract
The Asia Pacific Metrology Program and the Accreditation Cooperation joint Proficiency Testing (PT) program for the quantification of genetically modified maize MON87427 was organized by the National Institute of Metrology, China, to enhance the measurement accuracy and metrological traceability in the region. Certified reference materials were employed as test samples; metrologically traceable certified reference values served as PT reference values (PTRVs) for evaluating the participants results. The consensus values obtained from the participants were higher than the assigned values, potentially due to the systematic effects of DNA extraction process. The participants' relatively poor overall performance by the ζ-score compared with z-score demonstrates their need to thoroughly investigate quantification bias to elevate the measurement capability of genetically modified (GM) content and deepen their understanding of uncertainty estimation. This program confirmed the importance of using metrologically traceable reference values instead of consensus values as PTRV for reliable performance assessment.
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Affiliation(s)
- Di Wang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Yue Fei
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Chunyan Niu
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Song Lu
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Xian Chen
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Yuhua Wu
- Key Laboratory of Agricultural Genetically Modified Organisms Traceability of the Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Ping He
- Specialized Standards Accreditation Department (SSAD), China National Accreditation Service for Conformity Assessment (CNAS), Beijing 100062, China
| | - Xiujie Zhang
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs (MARA), Beijing 100176, China
| | - Hong Chen
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs (MARA), Beijing 100176, China
| | - Haoqian Wang
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs (MARA), Beijing 100176, China
| | - Yunhua Gao
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China.
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Zhou P, Liu X, Liang J, Zhao J, Zhang Y, Xu D, Li X, Chen Z, Shi Z, Gao J. GMOIT: a tool for effective screening of genetically modified crops. BMC PLANT BIOLOGY 2024; 24:329. [PMID: 38664610 PMCID: PMC11044397 DOI: 10.1186/s12870-024-05035-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 04/17/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Advancement in agricultural biotechnology has resulted in increasing numbers of commercial varieties of genetically modified (GM) crops worldwide. Though several databases on GM crops are available, these databases generally focus on collecting and providing information on transgenic crops rather than on screening strategies. To overcome this, we constructed a novel tool named, Genetically Modified Organisms Identification Tool (GMOIT), designed to integrate basic and genetic information on genetic modification events and detection methods. RESULTS At present, data for each element from 118 independent genetic modification events in soybean, maize, canola, and rice were included in the database. Particularly, GMOIT allows users to customize assay ranges and thus obtain the corresponding optimized screening strategies using common elements or specific locations as the detection targets with high flexibility. Using the 118 genetic modification events currently included in GMOIT as the range and algorithm selection results, a "6 + 4" protocol (six exogenous elements and four endogenous reference genes as the detection targets) covering 108 events for the four crops was established. Plasmids pGMOIT-1 and pGMOIT-2 were constructed as positive controls or calibrators in qualitative and quantitative transgene detection. CONCLUSIONS Our study provides a simple, practical tool for selecting, detecting, and screening strategies for a sustainable and efficient application of genetic modification.
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Affiliation(s)
- Pu Zhou
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China
| | - Xuan Liu
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China
| | - Jingang Liang
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing, 100025, China
| | - Juanli Zhao
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China
| | - Yuqi Zhang
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China
| | - Dongmei Xu
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China
| | - Xiaying Li
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing, 100025, China
| | - Ziyan Chen
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing, 100025, China
| | - Zongyong Shi
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China.
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China.
| | - Jianhua Gao
- Hou Ji Laboratory in Shanxi Province, College of Life Sciences, Shanxi Agricultural University, Jinzhong, 030801, Shanxi, China.
- Crops Ecological Environment Security Inspection and Supervision Center (Taiyuan), Ministry of Agriculture and Rural Affairs, Taigu, 030801, Shanxi, China.
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Collaborative Ring Trial of the Applicability of a Reference Plasmid DNA Calibrant in the Quantitative Analysis of GM Maize Event MON810. Foods 2022; 11:foods11111538. [PMID: 35681288 PMCID: PMC9180190 DOI: 10.3390/foods11111538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022] Open
Abstract
Certified reference materials (CRMs) is one of the critical requirements in a quantitative analytical method, such as in the quantification of genetically modified (GM) contents in food/feed products. Plasmid-DNA-based CRMs are becoming essential in GM content quantification. Herein, we report the construction of one plasmid DNA calibrant, pMON810, for the quantification of the GM maize event MON810 which is commercially planted and used for food/feeds worldwide, and the collaborative ring trial was used to validate its applicability. pMON10 was proven to have high specificity for the MON810 event. The limit of detection (LOD) and limit of quantification (LOQ) of real-time PCR assays of MON810 event and maize endogenous gene using pMON810 as calibrant was 2 copies/μL and 5 copies/μL, respectively. A total of eight laboratories participated in the ring trial and returned valid test results. Each sample was performed with three repeats and three parallels in each repeat. Statistical analysis of the ring trial results showed that pMON810 as a calibrant had high PCR efficiency (ranging from 0.885 to 1.008) and good linearity (ranging from 0.9933 to 0.9997) in MON810 and endogenous gene real-time PCR assays. The bias between the test values and true values ranged from 4.60 to 20.00% in the quantification of five blind samples. These results indicate that pMON810 is suitable for use as a calibrant for the quantification of MON810 events in routine lab analysis or to evaluate detection methods for MON810, as well as being used as a substitute for the matrix-based CRM of MON810.
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A New Reference Plasmid “pGMT27” Provides an Efficient Transgenic Detection Method for Flue-Cured Tobacco. J FOOD QUALITY 2021. [DOI: 10.1155/2021/3220013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Owing to the economic value of its foliage, tobacco (Nicotiana tabacum) is cultivated all across the world. For the detection of genetically modified (GM) tobacco, there is a lack of universal standard material which ultimately limits the detection methods because the accuracy and comparability of the results cannot be ensured. Here, we prepared a reference plasmid “pGMT27” for the detection of GM tobacco, which was 18,296 bp in length harboring two of the tobacco endogenous and seven exogenous genes. By using qualitative PCR test for the nine genes, 10 copies were used for plasmid sensitivity. In the quantitative real-time PCR (qPCR) assays with pGMT27 as a calibrator, the reaction efficiencies for P-35S and NR were 101.427% and 98.036%, respectively, whereas the limit of detection (LOD) and limit of quantification (LOQ) were 5 copies and 10 copies per reaction. For standard deviation (SD) and relative standard deviation (RSD) of the Ct values, the repeatability values were from 0.04 to 0.42 and from 0.18% to 1.29%, respectively; and the reproducibility values were from 0.04 to 0.39 and from 0.18% to 1.14%, respectively. For the unknown sample test, the average conversion factor (Cf) was 0.39, and the accuracy bias was from −15.55% to 1.93%; for precision, the SD values ranged from 0.02 to 0.62, while RSD values were from 1.34% to 10.6%. We concluded that using the pGMT27 plasmid as a calibrator provided a highly efficient transgenic detection method for flue-cured tobacco.
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Xu J, Wan C, Luan S, Li X, Xu Y, Zhao YU, Cao J. Applicability of plasmid calibrant pMON87712 for quantitative detection of the transgenic soybean MON87712. Acta Biochim Biophys Sin (Shanghai) 2021; 53:933-942. [PMID: 34223883 DOI: 10.1093/abbs/gmab063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Indexed: 11/13/2022] Open
Abstract
The transgenic glyphosate-tolerant soybean MON87712 event was developed by the agrochemical and agricultural biotechnology company Monsanto (USA) and commercialized in 2013. Due to the absence of matrix-based and genomic DNA-positive reference material for MON87712, it is very difficult to detect and monitor this event. In this study, we developed a recombinant 760-bp linearized plasmid, including 150 bp of the soybean endogenous lectin gene and 610 bp of the exogenous BBX32 gene plus its 3' flanking sequence of MON87712 by In-Fusion cloning technology. In addition, a duplex real-time polymerase chain reaction for the detection of MON87712 and the soybean endogenous lectin gene was established. By using this method, we achieved specific and quantitative detection of MON87712 in 45 other kinds of crops, with a detection limit of 10 copies/μl. This method provides a new technical means for the accurate detection of transgenic soybean MON87712, as well as technical support for the supervision of agricultural transgenic organisms.
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Affiliation(s)
- Junyi Xu
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Chao Wan
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Shenshun Luan
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Xin Li
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Yang Xu
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Y U Zhao
- Food Biology Laboratory, Technology Center of Dalian Customs District, Dalian 116001, China
| | - Jijuan Cao
- Key Laboratory of Biotechnology and Bioresources Utilization of Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
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Wu Y, Li J, Li X, Zhai S, Gao H, Li Y, Zhang X, Wu G. Development and strategy of reference materials for the DNA-based detection of genetically modified organisms. Anal Bioanal Chem 2019; 411:1729-1744. [DOI: 10.1007/s00216-019-01576-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/21/2018] [Accepted: 01/03/2019] [Indexed: 12/11/2022]
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7
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Yang L, Yang Y, Jin W, Zhang X, Li X, Wu Y, Li J, Li L. Development and Interlaboratories Validation of Event-Specific Quantitative Real-Time PCR Method for Genetically Modified Rice G6H1 Event. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8179-8186. [PMID: 29985602 DOI: 10.1021/acs.jafc.8b01519] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The transgenic rice G6H1 was a new event with the traits of herbicide-tolerance and insect-resistant. Herein, we developed one event-specific real-time PCR method with high specificity and sensitivity for G6H1 event quantitative analysis, and validated its performance on practical samples quantification through a collaborative ring trial. A total of eight laboratories participated in this validation and quantified three blind G6H1 powder samples including DNA extraction and real-time PCR analysis. The statistically analyzed results from returned data confirmed its high PCR efficiency and good linearity, trueness, and precision, indicating that the developed G6H1 real-time PCR assay was accurate, reliable, and comparable for G6H1 identification and quantification.
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Affiliation(s)
- Litao Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Yu Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Wujun Jin
- Biotechnology Research Institute , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Xiujie Zhang
- Development Center of Science and Technology , Ministry of Agriculture of People's Republic of China , Beijing 100025 , China
| | - Xiaying Li
- Development Center of Science and Technology , Ministry of Agriculture of People's Republic of China , Beijing 100025 , China
| | - Yuhua Wu
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute , Chinese Academy of Agricultural Sciences , No. 2 Xudong Second Road , Wuhan 430062 , People's Republic of China
| | - Jun Li
- Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute , Chinese Academy of Agricultural Sciences , No. 2 Xudong Second Road , Wuhan 430062 , People's Republic of China
| | - Liang Li
- Biotechnology Research Institute , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
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8
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Yang Y, Li L, Yang H, Li X, Zhang X, Xu J, Zhang D, Jin W, Yang L. Development of Certified Matrix-Based Reference Material as a Calibrator for Genetically Modified Rice G6H1 Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:3708-3715. [PMID: 29584422 DOI: 10.1021/acs.jafc.8b00468] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The accurate monitoring and quantification of genetically modified organisms (GMOs) are key points for the implementation of labeling regulations, and a certified reference material (CRM) acts as the scaleplate for quantifying the GM contents of foods/feeds and evaluating a GMO analytical method or equipment. Herein we developed a series of CRMs for transgenic rice event G6H1, which possesses insect-resistant and herbicide-tolerant traits. Three G6H1 CRMs were produced by mixing seed powders obtained from homozygous G6H1 and its recipient cultivar Xiushui 110 at mass ratios of 49.825%, 9.967%, and 4.986%. The between-bottle homogeneity and within-bottle homogeneity were thoroughly evaluated with consistent results. The potential DNA degradation in transportation and shelf life were evaluated with an expiration period of at least 12 months. The property values of three CRMs (G6H1a, G6H1b, G6H1c) were given as (49.825 ± 0.448) g/kg, (9.967 ± 1.757) g/kg, and (4.986 ± 1.274 g/kg based on mass fraction ratio, respectively. Furthermore, the three CRMs were characterized with values of (5.01 ± 0.08)%, (1.06 ± 0.22)%, and (0.53 ± 0.11)% based on the copy number ratio using the droplet digital PCR method. All results confirmed that the produced G6H1 matrix-based CRMs are of high quality with precise characterization values and can be used as calibrators in GM rice G6H1 inspection and monitoring and in evaluating new analytical methods or devices targeting the G6H1 event.
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Affiliation(s)
- Yu Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Liang Li
- Biotechnology Research Institute , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Hui Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiaying Li
- Development Center of Science and Technology , Ministry of Agriculture of People's Republic of China , Beijing 100025 , China
| | - Xiujie Zhang
- Development Center of Science and Technology , Ministry of Agriculture of People's Republic of China , Beijing 100025 , China
| | - Junfeng Xu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Quality and Standard for Agro-Products , Zhejiang Academy of Agricultural Sciences , Hangzhou 310021 , China
| | - Dabing Zhang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Wujun Jin
- Biotechnology Research Institute , Chinese Academy of Agricultural Sciences , Beijing 100081 , China
| | - Litao Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology , Shanghai Jiao Tong University , Shanghai 200240 , China
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Li Z, Li X, Wang C, Song G, Pi L, Zheng L, Zhang D, Yang L. One Novel Multiple-Target Plasmid Reference Molecule Targeting Eight Genetically Modified Canola Events for Genetically Modified Canola Detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8489-8500. [PMID: 28844131 DOI: 10.1021/acs.jafc.7b02453] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Multiple-target plasmid DNA reference materials have been generated and utilized as good substitutes of matrix-based reference materials in the analysis of genetically modified organisms (GMOs). Herein, we report the construction of one multiple-target plasmid reference molecule, pCAN, which harbors eight GM canola event-specific sequences (RF1, RF2, MS1, MS8, Topas 19/2, Oxy235, RT73, and T45) and a partial sequence of the canola endogenous reference gene PEP. The applicability of this plasmid reference material in qualitative and quantitative PCR assays of the eight GM canola events was evaluated, including the analysis of specificity, limit of detection (LOD), limit of quantification (LOQ), and performance of pCAN in the analysis of various canola samples, etc. The LODs are 15 copies for RF2, MS1, and RT73 assays using pCAN as the calibrator and 10 genome copies for the other events. The LOQ in each event-specific real-time PCR assay is 20 copies. In quantitative real-time PCR analysis, the PCR efficiencies of all event-specific and PEP assays are between 91% and 97%, and the squared regression coefficients (R2) are all higher than 0.99. The quantification bias values varied from 0.47% to 20.68% with relative standard deviation (RSD) from 1.06% to 24.61% in the quantification of simulated samples. Furthermore, 10 practical canola samples sampled from imported shipments in the port of Shanghai, China, were analyzed employing pCAN as the calibrator, and the results were comparable with those assays using commercial certified materials as the calibrator. Concluding from these results, we believe that this newly developed pCAN plasmid is one good candidate for being a plasmid DNA reference material in the detection and quantification of the eight GM canola events in routine analysis.
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Affiliation(s)
- Zhuqing Li
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Xiang Li
- Shanghai Entry-Exit Inspection and Quarantine Bureau, GMO Detection Laboratory , 1208 Minheng Road, Shanghai 200135, P. R. China
| | - Canhua Wang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Guiwen Song
- Development Center of Science and Technology, Ministry of Agriculture of People's Republic of China , Beijing 100025, China
| | - Liqun Pi
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Lan Zheng
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Dabing Zhang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
- Key Laboratory of Crop Marker-Assisted Breeding of Huaian Municipality, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection , Huaian 223300, China
| | - Litao Yang
- National Center for the Molecular Characterization of Genetically Modified Organisms, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, China
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Grazina L, Plácido A, Costa J, Fernandes TJ, Oliveira MBP, Mafra I. Tracing two Roundup Ready™ soybean lines (GTS 40-3-2 and MON89788) in foods commercialised in Portugal. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Tung HY, Wang SH, Chiang YC, Tsai MS. Rapid screening of roundup ready soybean in food samples by a hand-held PCR device. Food Sci Biotechnol 2016; 25:1101-1107. [PMID: 30263381 DOI: 10.1007/s10068-016-0177-5] [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: 12/26/2015] [Revised: 04/10/2016] [Accepted: 05/18/2016] [Indexed: 01/06/2023] Open
Abstract
Insulated isothermal PCR (iiPCR) method was recently available for rapid on-site detection of roundup ready soybean (RRS; event GTS40-3-2) in food materials and products. Performance of this method was evaluated in this study. The 100% detection endpoint for the RRS by iiPCR was found in samples containing 0.1% RRS, equivalent to the results of the reference real-time PCR (rtPCR). Analysis of nucleic acids of soybean-based processed food products indicated 95% agreement between the iiPCR and rtPCR for RRS detection. By testing soybean milk and tofu samples using simple pretreatment methods, we found that the agreements between iiPCR and rtPCR methods of the aforementioned samples were 80% and 90%, respectively. Replicated tests of all discrepant samples implied that these samples had trace amounts of RRS, suggesting that the iiPCR system is more sensitive than the rtPCR method. In conclusion, the iiPCR technology can be a useful point-of-need tool to help make a timely decision in the consumption of genetically modified organisms.
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Affiliation(s)
- Hsiang-Yun Tung
- 1College of Biotechnology and Bioresources, Da-Yeh University, Changhua, Taiwan, 51591 China
| | - Sue-Hong Wang
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan, 402 China
| | - Yu-Cheng Chiang
- Department of Food Science and Technology, Hung Kuang University, Taichung, Taiwan, 43302 China
| | - Ming-Shiun Tsai
- 1College of Biotechnology and Bioresources, Da-Yeh University, Changhua, Taiwan, 51591 China
- 4Department of BioIndustry Technology, Da-Yeh University, Changhua, Taiwan, 51591 China
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12
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Hu Z, Zhang X, Liu W, Zhou Q, Zhang Q, Li G, Yao Q. Genome segments accumulate with different frequencies inBombyx mori bidensovirus. J Basic Microbiol 2016; 56:1338-1343. [DOI: 10.1002/jobm.201600120] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 04/24/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Zhaoyang Hu
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Xiaolong Zhang
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Wei Liu
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Qian Zhou
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Qing Zhang
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Guohui Li
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
| | - Qin Yao
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu P.R. China
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13
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Development of event-specific qualitative and quantitative PCR detection methods for the transgenic maize BVLA430101. Eur Food Res Technol 2016. [DOI: 10.1007/s00217-015-2631-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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