Modular tagging of amplicons using a single PCR for high-throughput sequencing

Area of Science:

• Molecular Biology
• Genomics
• Bioinformatics

Background:

• High-throughput sequencing (HTS) is crucial for DNA barcoding and phylogenetics.
• Preparing PCR amplicons for HTS, including adapter and multiplex identifier (MID) tag addition, is a bottleneck.
• Current methods for adapter/MID tag incorporation are often inefficient or expensive.

Purpose of the Study:

• To develop a streamlined, cost-effective method for preparing PCR amplicons for HTS.
• To simplify the incorporation of HTS adapters and MID tags.
• To improve the efficiency of DNA sequencing workflows.

Main Methods:

• A novel single-polymerase chain reaction (PCR) method was developed.
• This method amplifies target loci while simultaneously adding HTS adapters and MID tags via a linker sequence.
• The approach was validated using insect mitochondrial loci (COI and 16S).

Main Results:

• The single-PCR method successfully incorporated HTS adapters and MID tags.
• This approach generated reference sequence data for targeted insect taxa.
• The method proved flexible and efficient for preparing amplicons.

Conclusions:

• The described single-PCR method offers a significant improvement for amplicon preparation for HTS.
• This technique is cost-effective and efficient, particularly for multi-sample or multi-locus studies.
• The method simplifies workflows in phylogenetic and DNA barcoding research.