Viral Metagenomic Sequencing Services

As a trusted Illumina sequencing partner, N2Jenomics Lab Pvt. Ltd. provides comprehensive viral metagenomic sequencing solutions for unbiased detection and characterization of viral communities. Leveraging advanced next-generation sequencing (NGS) platforms and robust bioinformatics pipelines, we deliver high-quality data to support research in virology, infectious diseases, environmental monitoring, agriculture, and public health.

What Is Viral Metagenomic Sequencing?

Viral metagenomic sequencing is an untargeted NGS approach that enables comprehensive analysis of viral populations directly from clinical, environmental, agricultural, or food samples without prior knowledge of the viruses present. Unlike targeted assays, this method can simultaneously detect known, novel, and highly divergent viruses.

Because viruses lack a universal genetic marker, viral metagenomics relies on shotgun metagenomic sequencing or RNA sequencing (RNA-Seq) to capture viral genomes. Specialized enrichment and purification methods help increase viral nucleic acid recovery, improving detection sensitivity in complex samples.

This technology provides valuable insights into viral diversity, evolution, transmission, and host–virus interactions across a wide range of ecosystems.

Benefits of Viral Metagenomic Sequencing

• • Culture-independent viral detection without prior target selection.

• • Simultaneous identification of known and novel viruses.

• • Comprehensive virome profiling across diverse sample types.
• • High-resolution taxonomic and functional analysis of viral communities.
• • Supports pathogen discovery and infectious disease surveillance.
• • Scalable workflow for research, environmental, agricultural, and clinical studies.

Applications of Viral Metagenomic Sequencing

• Infectious Disease Research

Identify viral pathogens, investigate outbreaks, monitor viral evolution, and study host–virus interactions in clinical and public health research.

• Food Safety & Quality

Detect foodborne viruses, investigate contamination events, monitor food processing environments, and strengthen food safety surveillance.

• Animal Health & Veterinary Research

Characterize viral pathogens affecting livestock, poultry, aquaculture, and wildlife to support disease prevention and animal health management.

• Environmental Monitoring

Profile viral communities in wastewater, freshwater, marine ecosystems, soil, and air to assess environmental quality and monitor emerging viral threats.

• Drug & Therapeutic Discovery

Explore viral diversity and virus–host interactions to support antiviral research, bacteriophage applications, and novel therapeutic development.

• Agricultural Research

Study plant and soil viromes to improve crop health, identify plant pathogens, and support sustainable agricultural practices.

• Microbiome & Phage Research

Investigate bacteriophages and their interactions with microbial communities to better understand ecosystem dynamics and microbiome function.

Viral Metagenomic Sequencing Workflow

Our standardized workflow is designed to maximize viral nucleic acid recovery while ensuring accurate and reproducible sequencing results.

• Sample Collection & Quality Assessment

• - Evaluation of sample integrity and suitability for sequencing.

• Viral Particle Enrichment

• - Filtration, centrifugation, or other enrichment techniques to increase viral content and reduce host contamination.

• Nucleic Acid Extraction

• - Isolation of viral DNA and/or RNA using optimized protocols.

• Library Preparation

• - Sequence-independent amplification and construction of high-quality sequencing libraries.

• Next-Generation Sequencing

• - High-throughput sequencing using advanced Illumina platforms.

• Bioinformatics Analysis

• - Quality control
• - Viral genome assembly
• - Taxonomic classification
• - Diversity analysis
• - Functional annotation
• - Comprehensive reporting with publication-ready visualizations

Service Specifications

	Sample requirements Samples sources including environmental and clinical samples Sample qualification control Isolation and purification of VPs and sequence-independent amplification
	Sequencing Platforms HiSeq platforms, paired-end 150 bp, MGI DNBSEQ-T7/DNBSEQ-G400 More than 2Gb raw data per sample More than 80% of bases with a ≥Q30 quality score PacBio's SMRT technology is also available for long fragment sequencing, which provides more accurate and contiguous sequences.
	Bioinformatics Analysis  We provide multiple customized bioinformatics analyses: The removal of host-related and bacteria-related contamination Nucleotide alignment (VirFinder, VirusFinder and BLAST) Protein alignment (RefSeq) De novo assembly, taxonomy identification, coverage plot, and phylogenetic analysis …and more

Analysis Pipeline

Deliverables

• • Quality Control and Host Removal
• • Analysis of Reads Species
• • Assembly
• • Analysis of Assembled Species
• • Functional Analysis
• • Prediction of Phage Hosts

1. What are the main approaches for viral whole-genome sequencing?

Three commonly used strategies are available for viral genome analysis, each designed for different research objectives.

For studies involving unknown pathogens, mixed viral populations, or environmental virome analysis, viral metagenomic sequencing offers the most comprehensive and unbiased approach.

2. What bioinformatics analysis is included with viral metagenomic sequencing?

Our bioinformatics workflow converts raw sequencing data into meaningful biological insights through a comprehensive analysis pipeline, including:

• • Raw read quality assessment and filtering
• • Adapter trimming and removal of low-quality sequences
• • Host sequence subtraction to enrich viral reads
• • Viral sequence identification using curated reference databases
• • Taxonomic classification of detected viruses
• • Genome assembly and coverage analysis
• • Phylogenetic and evolutionary analysis
• • Diversity profiling and abundance estimation
• • Publication-ready reports and data visualizations

This workflow enables accurate identification, characterization, and comparison of viral communities across different sample types.

3. Can viral metagenomic sequencing detect novel or unexpected viruses?

Yes. Because viral metagenomic sequencing does not rely on virus-specific primers or probes, it can identify known, emerging, and previously uncharacterized viruses, making it an effective tool for pathogen discovery and outbreak investigations.

4. What types of samples can be analyzed?

We support a broad range of sample types, including:

• • Clinical specimens
• • Environmental water samples
• • Soil and sediment
• • Wastewater
• • Food samples
• • Plant and animal tissues
• • Fecal samples
• • Respiratory and other biological specimens

Our team can also optimize workflows for challenging or low-viral-load samples.

5. When should I choose viral metagenomic sequencing instead of targeted sequencing?

Viral metagenomic sequencing is recommended when:

• • The causative virus is unknown.
• • Multiple viruses may be present in the same sample.
• • You want to profile the complete virome.
• • Novel or emerging viruses are suspected.
• • Broad pathogen surveillance or environmental monitoring is required.

• Targeted sequencing methods are generally more appropriate when studying a specific, well-characterized virus.

6. Does your service include bioinformatics support?

Yes. Our service includes end-to-end bioinformatics support, from raw data processing and quality control to viral identification, genome assembly, taxonomic profiling, phylogenetic analysis, and comprehensive reporting. Customized downstream analyses are also available based on project requirements.