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Srivathsan A, Feng V, Suárez D, Emerson B, Meier R. ONTbarcoder 2.0: rapid species discovery and identification with real-time barcoding facilitated by Oxford Nanopore R10.4. Cladistics 2024; 40:192-203. [PMID: 38041646 DOI: 10.1111/cla.12566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 12/03/2023] Open
Abstract
Most arthropod species are undescribed and hidden in specimen-rich samples that are difficult to sort to species using morphological characters. For such samples, sorting to putative species with DNA barcodes is an attractive alternative, but needs cost-effective techniques that are suitable for use in many laboratories around the world. Barcoding using the portable and inexpensive MinION sequencer produced by Oxford Nanopore Technologies (ONT) could be useful for presorting specimen-rich samples with DNA barcodes because it requires little space and is inexpensive. However, similarly important is user-friendly and reliable software for analysis of the ONT data. It is here provided in the form of ONTbarcoder 2.0 that is suitable for all commonly used operating systems and includes a Graphical User Interface (GUI). Compared with an earlier version, ONTbarcoder 2.0 has three key improvements related to the higher read quality obtained with ONT's latest flow cells (R10.4), chemistry (V14 kits) and basecalling model (super-accuracy model). First, the improved read quality of ONT's latest flow cells (R10.4) allows for the use of primers with shorter indices than those previously needed (9 bp vs. 12-13 bp). This decreases the primer cost and can potentially improve PCR success rates. Second, ONTbarcoder now delivers real-time barcoding to complement ONT's real-time sequencing. This means that the first barcodes are obtained within minutes of starting a sequencing run; i.e. flow cell use can be optimized by terminating sequencing runs when most barcodes have already been obtained. The only input needed by ONTbarcoder 2.0 is a demultiplexing sheet and sequencing data (raw or basecalled) generated by either a Mk1B or a Mk1C. Thirdly, we demonstrate that the availability of R10.4 chemistry for the low-cost Flongle flow cell is an attractive option for users who require only 200-250 barcodes at a time.
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Affiliation(s)
- Amrita Srivathsan
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Invalidenstraße 43, 10115, Berlin, Germany
| | - Vivian Feng
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Invalidenstraße 43, 10115, Berlin, Germany
| | - Daniel Suárez
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), C/Astrofísico Francisco Sánchez 3, La Laguna, Tenerife, Canary Islands, 38206, Spain
- School of Doctoral and Postgraduate Studies, University of La Laguna, 38200 La Laguna, Tenerife, Canary Islands, 38200, Spain
| | - Brent Emerson
- Island Ecology and Evolution Research Group, Institute of Natural Products and Agrobiology (IPNA-CSIC), C/Astrofísico Francisco Sánchez 3, La Laguna, Tenerife, Canary Islands, 38206, Spain
| | - Rudolf Meier
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Invalidenstraße 43, 10115, Berlin, Germany
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore
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Srivathsan A, Meier R. Scalable, Cost-Effective, and Decentralized DNA Barcoding with Oxford Nanopore Sequencing. Methods Mol Biol 2024; 2744:223-238. [PMID: 38683322 DOI: 10.1007/978-1-0716-3581-0_14] [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] [Indexed: 05/01/2024]
Abstract
DNA barcodes are useful in biodiversity research, but sequencing barcodes with dye termination methods ("Sanger sequencing") has been so time-consuming and expensive that DNA barcodes are not as widely used as they should be. Fortunately, MinION sequencers from Oxford Nanopore Technologies have recently emerged as a cost-effective and efficient alternative for barcoding. MinION barcodes are now suitable for large-scale species discovery and enable specimen identification when the target species are represented in barcode databases. With a MinION, it is possible to obtain 10,000 barcodes from a single flow cell at a cost of less than 0.10 USD per specimen. Additionally, a Flongle flow cell can be used for small projects requiring up to 300 barcodes (0.50 USD per specimen). We here describe a cost-effective laboratory workflow for obtaining tagged amplicons, preparing ONT libraries, sequencing amplicon pools, and analyzing the MinION reads with the software ONTbarcoder. This workflow has been shown to yield highly accurate barcodes that are 99.99% identical to Sanger barcodes. Overall, we propose that the use of MinION for DNA barcoding is an attractive option for all researchers in need of a cost-effective and efficient solution for large-scale species discovery and specimen identification.
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Affiliation(s)
- Amrita Srivathsan
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Berlin, Germany
| | - Rudolf Meier
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Berlin, Germany.
- Institute for Biology, Humboldt University, Berlin, Germany.
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Lee S, Orr MC, Seung J, Yang Y, Tian Z, Lee M, Tak JH, Lee S, Bai M. Designing and Evaluating a Portable UV-LED Vane Trap to Expedite Arthropod Biodiversity Discovery. INSECTS 2024; 15:21. [PMID: 38249027 PMCID: PMC10816512 DOI: 10.3390/insects15010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 01/23/2024]
Abstract
A novel design of a portable funnel light trap (PFLT) was presented for collecting insects in ecological studies. The trap consists of a compact plastic box equipped with a light source and power source, along with two plastic polypropylene interception vanes. The PFLT costs 18.3 USD per unit and weighs approximately 300 g. A maximum of six PFLT units can be packed in one medium-sized backpack (32 cm × 45 cm × 15 cm, 20 L), making it easier to set up multiple units in remote areas wherein biodiversity research is needed. The low cost and weight of the trap also allows for large-scale deployment. The design is customizable and can be easily manufactured to fit various research needs. To validate the PFLT's efficacy in collecting insects across different habitat types, a series of field experiments were conducted in South Korea and Laos, where 37 trials were carried out. The PFLT successfully collected 7497 insects without experiencing battery issues or damage by rain or wind. Insect compositions and abundances differed across the three sampled habitat types: forests, grasslands, and watersides. This new FLT trap is an important tool for studying and protecting insect biodiversity, particularly in areas wherein conventional light traps cannot be deployed.
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Affiliation(s)
- Seunghyun Lee
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; (S.L.)
- Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Michael C. Orr
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; (S.L.)
- International College, University of Chinese Academy of Sciences, Beijing 100049, China
- Entomologie, Staatliches Museum für Naturkunde Stuttgart, 70191 Stuttgart, Germany
| | - Jinbae Seung
- Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Yunho Yang
- Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Insect Pest Chemical Control Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
| | - Zhehao Tian
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; (S.L.)
| | - Minhyeuk Lee
- Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
- National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea
| | - Jun-Hyung Tak
- Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Insect Pest Chemical Control Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
| | - Seunghwan Lee
- Insect Biosystematics Laboratory, Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute for Agricultural and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ming Bai
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; (S.L.)
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Szafranski GT, Granek EF. Contamination in mangrove ecosystems: A synthesis of literature reviews across multiple contaminant categories. MARINE POLLUTION BULLETIN 2023; 196:115595. [PMID: 37852064 DOI: 10.1016/j.marpolbul.2023.115595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/17/2023] [Accepted: 09/24/2023] [Indexed: 10/20/2023]
Abstract
Mangrove forests are exposed to diverse ocean-sourced and land-based contaminants, yet mangrove contamination research lags. We synthesize existing data and identify major gaps in research on five classes of mangrove contaminants: trace metals, persistent organic pollutants, polycyclic aromatic hydrocarbons, microplastics, and pharmaceuticals and personal care products. Research is concentrated in Asia, neglected in Africa and the Americas; higher concentrations are correlated with waste water treatment plants, industry, and urbanized landscapes. Trace metals and polycyclic aromatic hydrocarbons, frequently at concentrations below regulatory thresholds, may bioconcentrate in fauna, whereas persistent organic pollutants were at levels potentially harmful to biota through short- or long-term exposure. Microplastics were at variable levels, yet lack regulatory and ecotoxicological thresholds. Pharmaceuticals and personal care products received minimal research despite biological activity at small concentrations. Given potential synergistic effects, multi-contaminant research, increased monitoring of multiple contaminant classes, and increased public outreach and involvement are needed.
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Affiliation(s)
- Geoffrey T Szafranski
- Environmental Science & Management, Portland State University, Portland, OR, United States of America
| | - Elise F Granek
- Environmental Science & Management, Portland State University, Portland, OR, United States of America.
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Goulding TC, Dayrat B. The Coral Triangle and Strait of Malacca are two distinct hotspots of mangrove biodiversity. Sci Rep 2023; 13:15793. [PMID: 37737278 PMCID: PMC10516942 DOI: 10.1038/s41598-023-42057-6] [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: 03/21/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023] Open
Abstract
Knowledge of the biogeography of marine taxa has lagged significantly behind terrestrial ecosystems. A hotspot of marine biodiversity associated with coral reefs is known in the Coral Triangle of the Indo-West Pacific, but until now there was little data with which to evaluate broad patterns of species richness in the coastal fauna of ecosystems other than coral reefs. This data is critically needed for fauna with low functional redundancy like that of mangroves, that are vulnerable to habitat loss and rising sea levels. Here we show that the diversity of mangrove fauna is characterized by two distinct hotspots in the Indo-West Pacific, associated with two habitat types: fringe mangroves in the Coral Triangle, and riverine mangroves in the Strait of Malacca, between the west coast of Peninsular Malaysia and Sumatra. This finding, based on a family of slugs of which the systematics has been completely revised, illustrates an unexpected biogeographic pattern that emerged only after this taxon was studied intensively. Most organisms that live in the mangrove forests of Southeast Asia remain poorly known both taxonomically and ecologically, and the hotspot of diversity of onchidiid slugs in the riverine mangroves of the Strait of Malacca indicates that further biodiversity studies are needed to support effective conservation of mangrove biodiversity.
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Affiliation(s)
- Tricia C Goulding
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA.
- Department of Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, Washington, DC, 20013, USA.
| | - Benoît Dayrat
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
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Srivathsan A, Ang Y, Heraty JM, Hwang WS, Jusoh WFA, Kutty SN, Puniamoorthy J, Yeo D, Roslin T, Meier R. Convergence of dominance and neglect in flying insect diversity. Nat Ecol Evol 2023; 7:1012-1021. [PMID: 37202502 PMCID: PMC10333119 DOI: 10.1038/s41559-023-02066-0] [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: 08/08/2022] [Accepted: 04/06/2023] [Indexed: 05/20/2023]
Abstract
Most of arthropod biodiversity is unknown to science. Consequently, it has been unclear whether insect communities around the world are dominated by the same or different taxa. This question can be answered through standardized sampling of biodiversity followed by estimation of species diversity and community composition with DNA barcodes. Here this approach is applied to flying insects sampled by 39 Malaise traps placed in five biogeographic regions, eight countries and numerous habitats (>225,000 specimens belonging to >25,000 species in 458 families). We find that 20 insect families (10 belonging to Diptera) account for >50% of local species diversity regardless of clade age, continent, climatic region and habitat type. Consistent differences in family-level dominance explain two-thirds of variation in community composition despite massive levels of species turnover, with most species (>97%) in the top 20 families encountered at a single site only. Alarmingly, the same families that dominate insect diversity are 'dark taxa' in that they suffer from extreme taxonomic neglect, with little signs of increasing activities in recent years. Taxonomic neglect tends to increase with diversity and decrease with body size. Identifying and tackling the diversity of 'dark taxa' with scalable techniques emerge as urgent priorities in biodiversity science.
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Affiliation(s)
- Amrita Srivathsan
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Berlin, Germany
| | - Yuchen Ang
- Lee Kong Chian Natural History Museum, National University of Singapore, Singapore, Singapore
| | - John M Heraty
- Department of Entomology, University of California, Riverside, CA, USA
| | - Wei Song Hwang
- Lee Kong Chian Natural History Museum, National University of Singapore, Singapore, Singapore
| | - Wan F A Jusoh
- Lee Kong Chian Natural History Museum, National University of Singapore, Singapore, Singapore
- School of Science, Monash University Malaysia, Subang Jaya, Malaysia
| | - Sujatha Narayanan Kutty
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Tropical Marine Science Institute, National University of Singapore, Singapore, Singapore
| | - Jayanthi Puniamoorthy
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Darren Yeo
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Tomas Roslin
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Rudolf Meier
- Center for Integrative Biodiversity Discovery, Leibniz Institute for Evolution and Biodiversity Science, Museum für Naturkunde, Berlin, Germany.
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
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Chua PYS, Bourlat SJ, Ferguson C, Korlevic P, Zhao L, Ekrem T, Meier R, Lawniczak MKN. Future of DNA-based insect monitoring. Trends Genet 2023:S0168-9525(23)00038-0. [PMID: 36907721 DOI: 10.1016/j.tig.2023.02.012] [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: 10/11/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 03/12/2023]
Abstract
Insects are crucial for ecosystem health but climate change and pesticide use are driving massive insect decline. To mitigate this loss, we need new and effective monitoring techniques. Over the past decade there has been a shift to DNA-based techniques. We describe key emerging techniques for sample collection. We suggest that the selection of tools should be broadened, and that DNA-based insect monitoring data need to be integrated more rapidly into policymaking. We argue that there are four key areas for advancement, including the generation of more complete DNA barcode databases to interpret molecular data, standardisation of molecular methods, scaling up of monitoring efforts, and integrating molecular tools with other technologies that allow continuous, passive monitoring based on images and/or laser imaging, detection, and ranging (LIDAR).
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Affiliation(s)
- Physilia Y S Chua
- Tree of Life, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK.
| | - Sarah J Bourlat
- Leibniz Institute for the Analysis of Biodiversity Change, Museum Koenig, Adenauerallee 127, 53113 Bonn, Germany
| | - Cameron Ferguson
- Tree of Life, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Petra Korlevic
- Tree of Life, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Leia Zhao
- Tree of Life, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Torbjørn Ekrem
- Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Rudolf Meier
- Museum für Naturkunde, Center for Integrative Biodiversity Discovery, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, Germany
| | - Mara K N Lawniczak
- Tree of Life, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
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Maquart PO, Sokha C, Boyer S. Mosquito (Diptera: Culicidae) diversity and medical importance in Koh Kong mangrove forests, Cambodia. ASIAN BIOMED 2022; 16:121-129. [PMID: 37551380 PMCID: PMC10321176 DOI: 10.2478/abm-2022-0015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background Mangroves are an ecosystem interface between land and sea, forming distinctive shallow-water marine communities in tropical and subtropical waters. The mangrove forest surface in Cambodia is being reduced due to deforestation. Because the mangrove type of ecosystem generally hosts a great diversity of mosquitoes, the urbanization of these ecosystems will increase interactions between humans and wild mosquitoes, and might thus serve as a potential source of new infectious diseases. Understanding mosquito diversity and analyzing their virome is critical to estimate the risk of emergence or future outbreaks of mosquito-borne diseases. Objective To understand the mosquito diversity of mangrove forests of Koh Kong province (Cambodia). Methods In 2019, the mosquito fauna was sampled for 3 consecutive days using BG-Sentinel and light traps, in 3 locations in the mangrove forests of Koh Kong province (Cambodia) during both dry and rainy seasons. Results A total of 3107 samples were collected, belonging to 10 genera for 34 species. The Culex genus was the most diverse, accounting for 10 species. One species, Culex sitiens, represented over 60% of all collected mosquitoes. A total of 12 medically important species were recorded, 2 species, Aedes (Stegomyia) albopictus and Culex vishnui, were collected in all sites and during both the dry and rainy seasons, highlighting a potential risk of these species acting as bridge vectors. Conclusions If new arboviruses were to be recorded in this peculiar area, it would indicate that the mosquito species found have the potential to act as a bridge between sylvatic and anthropogenic arboviruses.
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Affiliation(s)
- Pierre-Olivier Maquart
- Medical and Veterinary Entomology Unit, Institut Pasteur du Cambodge, Phnom Penh12201, Cambodia
| | - Chea Sokha
- Wildlife Health Program, Wildlife Conservation Society, Sangkat Tonle Bassac, Phnom Penh12000, Cambodia
| | - Sébastien Boyer
- Medical and Veterinary Entomology Unit, Institut Pasteur du Cambodge, Phnom Penh12201, Cambodia
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Srivathsan A, Lee L, Katoh K, Hartop E, Kutty SN, Wong J, Yeo D, Meier R. ONTbarcoder and MinION barcodes aid biodiversity discovery and identification by everyone, for everyone. BMC Biol 2021; 19:217. [PMID: 34587965 PMCID: PMC8479912 DOI: 10.1186/s12915-021-01141-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/03/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND DNA barcodes are a useful tool for discovering, understanding, and monitoring biodiversity which are critical tasks at a time of rapid biodiversity loss. However, widespread adoption of barcodes requires cost-effective and simple barcoding methods. We here present a workflow that satisfies these conditions. It was developed via "innovation through subtraction" and thus requires minimal lab equipment, can be learned within days, reduces the barcode sequencing cost to < 10 cents, and allows fast turnaround from specimen to sequence by using the portable MinION sequencer. RESULTS We describe how tagged amplicons can be obtained and sequenced with the real-time MinION sequencer in many settings (field stations, biodiversity labs, citizen science labs, schools). We also provide amplicon coverage recommendations that are based on several runs of the latest generation of MinION flow cells ("R10.3") which suggest that each run can generate barcodes for > 10,000 specimens. Next, we present a novel software, ONTbarcoder, which overcomes the bioinformatics challenges posed by MinION reads. The software is compatible with Windows 10, Macintosh, and Linux, has a graphical user interface (GUI), and can generate thousands of barcodes on a standard laptop within hours based on only two input files (FASTQ, demultiplexing file). We document that MinION barcodes are virtually identical to Sanger and Illumina barcodes for the same specimens (> 99.99%) and provide evidence that MinION flow cells and reads have improved rapidly since 2018. CONCLUSIONS We propose that barcoding with MinION is the way forward for government agencies, universities, museums, and schools because it combines low consumable and capital cost with scalability. Small projects can use the flow cell dongle ("Flongle") while large projects can rely on MinION flow cells that can be stopped and re-used after collecting sufficient data for a given project.
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Affiliation(s)
- Amrita Srivathsan
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Leshon Lee
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Kazutaka Katoh
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Artificial Intelligence Research Center, AIST, Tokyo, Japan
| | - Emily Hartop
- Zoology Department, Stockholms Universitet, Stockholm, Sweden
- Station Linné, Öland, Sweden
| | - Sujatha Narayanan Kutty
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Tropical Marine Science Institute, National University of Singapore, Singapore, Singapore
| | - Johnathan Wong
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Darren Yeo
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Rudolf Meier
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
- Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Center for Integrative Biodiversity Discovery, Berlin, Germany.
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