DNA barcoding is a standardized molecular technique that uses a short, conserved DNA sequence (~400–800 bp) from specific genes to identify species rapidly and reliably – similar to a universal "barcode" for life. It enables species authentication even from fragments (leaves, roots, tissues, larvae, processed products) where morphology fails, supporting global databases like BOLD Systems (animals) and GenBank.

We use Sanger sequencing for gold-standard accuracy on individual samples, with options for high-throughput or custom markers.

Standard DNA Barcoding Markers by Taxonomic Group

• Animals: COI (cytochrome c oxidase I) – ~650 bp mitochondrial barcode; universal primers LCO1490/HCO2198; ideal for vertebrates, invertebrates, insects, fish, birds, mammals.
• Plants: rbcL + matK (core CBOL markers); trnH-psbA or ITS as supplements; effective for medicinal plants, timber, herbs, endangered species authentication.
• Fungi & Eukaryotic Microbes: ITS (Internal Transcribed Spacer) region (ITS1/ITS2/ITS4/ITS5 primers); 18S rRNA for broader eukaryotes/protists/algae; 26S rRNA (D1/D2) for yeast/fungi.
• Bacteria & Archaea: 16S rRNA (V3-V4 or full-length); for microbial identification, probiotics, pathogens.
• Custom Barcoding: Any gene/marker of interest (nuclear, chloroplast, mitochondrial) – we support primer design and optimization.

Our DNA Barcoding Workflow – End-to-End Service

1. Consultation & Sample Advice – Free guidance on marker selection, sample prep (tissue in ethanol, dried leaves, processed products), and project goals
2. DNA Extraction & QC – Optimized kits for plants/animals/microbes; purity (A260/A280), concentration, integrity checks
3. PCR Amplification – Taxon-specific primers; gel verification of amplicon size
4. Sanger Sequencing – Bidirectional reads for high-quality contigs; cycle sequencing for clean traces
5. Bioinformatics Analysis (Free basic + custom):
   • Sequence trimming, assembly, quality scoring (Phred Q20+)
   • BLASTn against NCBI/GenBank, BOLD, SILVA, PR2, UNITE
   • Similarity percentage, top hits, species identification
   • Phylogenetic tree (NJ/ML methods with references)
6. Deliverables: Raw .ab1/.fasta files, assembled sequences, BLAST reports, phylogeny visuals, full technical summary PDF

Why Choose Yaazh Xenomics for DNA Barcoding in India?

• Affordable pricing – competitive for students, researchers, industries
• High success on diverse/degraded samples (medicinal herbs, timber, insects)
• Free bioinformatics & phylogenetic support – publication-grade
• ISO-certified lab in Coimbatore – fast TAT, nationwide shipping
• Expertise across taxa: plants (herbal authentication), animals (biodiversity), fungi/microbes
• Regulatory-ready for adulteration detection, conservation, forensics

Applications of DNA Barcoding Services

• Medicinal & herbal plant authentication (adulteration prevention in Ayurveda/trade)
• Animal & insect species ID (biodiversity, pests, forensics, wildlife trade)
• Fungal/protist/microbial profiling (food safety, probiotics, ecology)
• Timber & non-wood forest product verification
• Conservation genetics & endangered species monitoring
• Food authenticity, cell line validation, evolutionary studies

DNA Barcoding vs. Other Methods

Advantages

• Rapid, objective species ID from fragments/processed material
• Cost-effective vs. full genome sequencing
• Integrates with global databases for instant matching

Limitations

• May not resolve very recent divergences/hybrids (supplement with nuclear markers)
• Requires good DNA quality (we optimize extraction for challenging samples)

For deeper insights, explore metagenomics or whole genome sequencing.