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    Classification:

    Full-Length Amplicon


    Introduction


    Full-length microbial diversity sequencing refers to the use of third-generation sequencing technology to obtain full-length 16S rDNA sequences of bacteria, followed by bioinformatics analysis of the generated data. This approach not only enhances the resolution of species identification but also improves the accuracy of determining microbial composition in samples, thereby truly reconstructing the authentic microbial community structure within the samples.

    Applications


    Medical Field: Studies on the relationship between common diseases and the human microbiota

    Animal Science Field: Research on intestinal/rumen microbiota (e.g., methanogenic microbial communities) in relation to animal health and nutrient digestion, etc.

    Agricultural Field: Studies on plant-rhizosphere microbial interactions, and the effects of agricultural tillage/fertilization practices on soil microbial communities, etc.

    Environmental Field: Research on haze remediation, sewage treatment, oil degradation, acid mine drainage treatment, and marine environmental studies, etc.

    Special Extreme Environments: Studies on microbial taxa under extreme environmental conditions

    Product Advantages


    Superior Alignment Rate: Higher sequence alignment rate for annotation across all taxonomic levels

    Higher Resolution: Full-length 16S sequences enable species-level taxonomic analysis

    More Accurate Microbial Community Reconstruction

    Workflow


    Sample Preparation

    Sample Preparation

    Qualified Pure Sample

    Sample QC

    Sample Preparation
    DNA Amplification

    DNA Amplification

    Amplification of specific DNA regions (16s/18s/ITS)

    Amplified Fragment Detection

    DNA Amplification
    PCR Product Mixing and Purification-Amplicon Library Preparation

    PCR Product Mixing and Purification-Amplicon Library Preparation

    Platform: PacBio/ONT

    Sequencing

    Sequencing

    Data QC

    Sequencing
    Bioinformatics Analysis

    Bioinformatics Analysis

    Fast And Comprehensive Bioinformatics Analysis

    Click >>

    Library Preparation Flowchart


    SAILGENE TECHNOLOGY INC.

    Nanopore Sequencing Experimental Workflow (Taking 16S rRNA as an Example)

    Analysis Flowchart


    Full-Length Amplicon.png

    Data Delivery Format


    FASTQ

    Comparison with Other Technologies


    Comparison Dimension

    Next-Generation Amplicon Sequencing (Illumina Platform)

    Third-Generation Amplicon Sequencing (taking ONT as an example)

    Read Length Characteristics

    Short read length (for 16S rRNA, typically targets single/combined hypervariable regions such as V3-V4, with a length of 250-400 bp)

    Long read length (full-length sequencing of 16S/18S/ITS, with a length of 1.5-5 kb, covering all hypervariable regions and conserved regions)

    Species Resolution

    Predominantly genus-level identification; species-level identification achievable for some taxa (dependent on hypervariable region specificity)

    Stably achieves species-level identification; supports strain-level differentiation in specific scenarios (e.g., precise tracing of drug-resistant strains)

    Annotation Accuracy

    Fragmented hypervariable region information leads to ambiguity in intraspecific taxonomic annotation; alignment rate approximately 85%-90%

    Full-length sequences contain complete phylogenetic information; alignment rate ≥95%, with species-level annotation accuracy improved by over 30%

    Chimerism and Error Rate

    High PCR amplification cycles result in a chimerism rate of approximately 5%-10%; sequencing error rate ~0.1% (random errors)

    Single-molecule sequencing reduces PCR bias; chimerism rate ≤2%; errors can be corrected via algorithms (final accuracy ≥99.9%)

    Technical Flexibility

    Relies on large-scale sequencers; only supports batch sample testing, with limited application scenarios

    ONT devices are portable (e.g., MinION); supports single-sample/small-batch sequencing and on-site real-time analysis

    Application Scenarios

    Large-scale microbial diversity screening, preliminary analysis of community structure

    High-resolution species identification, differentiation of closely related species, detection of low-abundance microorganisms, research on microorganisms in extreme environments, precise tracing of clinical pathogens

    Article Case


    1. Disease severity of root rot affects rhizosphere microbial community structure and network stability of Taraxacum kok-saghyz Rodin

    SAILGENE TECHNOLOGY INC.

    Publication Date: December 2025

    Journal & Impact Factor: Rhizosphere; 3.5

    DOI: https://doi.org/10.1016/j.rhisph.2025.101230

    Citation: Qinqin Nie, Guoen Ao, Shengchan Wang, et al. Disease severity of root rot affects rhizosphere microbial community structure and network stability of Taraxacum kok-saghyz Rodin. Rhizosphere, Volume 36, 2025, 101230, ISSN 2452-2198.

     

    2. Toxic effects of combined exposure to cadmium and diclofenac on freshwater crayfish (Procambarus clarkii): Insights from antioxidant enzyme activity, histopathology, and gut microbiome

     

    SAILGENE TECHNOLOGY INC.

     

    Publication Date: March 2024

    Journal & Impact Factor: Aquatic Toxicology (Aquat Toxicol); 4.1

    DOI: 10.1016/j.aquatox.2024.106844

    Citation: Jiang H, Li R, Zhao M, Peng X, Sun M, Liu C, Liu G, Xue H. Toxic effects of combined exposure to cadmium and diclofenac on freshwater crayfish (Procambarus clarkii): Insights from antioxidant enzyme activity, histopathology, and gut microbiome. Aquatic Toxicology (Aquat Toxicol), 2024 Mar; 268: 106844. https://doi.org/10.1016/j.aquatox.2024.106844. Epub 2024 Jan 26. PMID: 38295602.

    Sample Submission Requirements


    Full-Length Amplicon Specifications:

    DNA Sample Requirements

    Library Type

    Sample Type

    Amount

    Volume

    Concentration

    Purity

    (NanoDropTM/Agarose Gel)

    Full-Length Amplicon

    Total DNA

    ≥100 ng

    ≥20 μL

    ≥5 ng/μL

    OD260/280=1.8-2.0

    no degradation

    no contamination

    Other types of samples can be consulted with the application scientist

    Contact Us

    If you are interested in our long-read sequencing services or potential collaboration, please contact us. Our team is ready to support your research with tailored solutions. We also welcome feedback from users to help us improve our services.

    Contact Us
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    Contact Us

    E-mail:service@sailgene.com

    WhatsApp:1-(617)-223-7544

    Tel:16172237544

    Email:service@sailgene.com

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