Paired-end sequencing allows users to sequence both ends of a fragment and generate high-quality, alignable sequence data. Paired-end sequencing facilitates detection of genomic rearrangements and repetitive sequence elements, as well as gene fusions and novel transcripts.
In addition to producing twice the number of reads for the same time and effort in library preparation, sequences aligned as read pairs enable more accurate read alignment and the ability to detect insertion-deletion (indel) variants, which is not possible with single-read data.1 All Illumina next-generation sequencing (NGS) systems are capable of paired-end sequencing.
This overview describes major sequencing technology advances, key methods, the basics of Illumina sequencing chemistry, and more.Read Introduction
Paired-end DNA sequencing reads provide high-quality alignment across DNA regions containing repetitive sequences, and produce long contigs for de novo sequencing by filling gaps in the consensus sequence. Paired-end DNA sequencing also detects common DNA rearrangements such as insertions, deletions, and inversions.
DNA sequencing can be applied to small, targeted regions or the entire genome through a variety of methods.Learn More
Choosing the right sequencing read length depends on your sample type, application, and coverage requirements. Learn how to calculate the right read length for your sequencing run.Learn More
Paired-end RNA sequencing (RNA-Seq) enables discovery applications such as detecting gene fusions in cancer and characterizing novel splice isoforms.2
For paired-end RNA-Seq, use the following kits with an alternate fragmentation protocol, followed by standard Illumina paired-end cluster generation and sequencing.
This method offers a high-resolution view of coding and noncoding regions of the transcriptome for a deeper understanding of biology.Learn More
Researchers are using 16sRNA to investigate the genomes of microbes and improve our understanding of human health, disease, and microbial evolution.Learn More
Single-read sequencing involves sequencing DNA from only one end, and is the simplest way to utilize Illumina sequencing. This solution delivers large volumes of high-quality data, rapidly and economically. Single-read sequencing can be a good choice for certain methods such as small RNA-Seq or chromatin immunoprecipitation sequencing (ChIP-Seq).
Innovative, comprehensive library prep solutions are a key part of the Illumina sequencing workflow.Explore Library Prep