Nov 19, 2013

High-throughput DNA sequencing errors are reduced by orders of magnitude using circle sequencing

Proceedings of the National Academy of Sciences of the United States of America
Dianne I LouSara L Sawyer

Abstract

A major limitation of high-throughput DNA sequencing is the high rate of erroneous base calls produced. For instance, Illumina sequencing machines produce errors at a rate of ~0.1-1 × 10(-2) per base sequenced. These technologies typically produce billions of base calls per experiment, translating to millions of errors. We have developed a unique library preparation strategy, "circle sequencing," which allows for robust downstream computational correction of these errors. In this strategy, DNA templates are circularized, copied multiple times in tandem with a rolling circle polymerase, and then sequenced on any high-throughput sequencing machine. Each read produced is computationally processed to obtain a consensus sequence of all linked copies of the original molecule. Physically linking the copies ensures that each copy is independently derived from the original molecule and allows for efficient formation of consensus sequences. The circle-sequencing protocol precedes standard library preparations and is therefore suitable for a broad range of sequencing applications. We tested our method using the Illumina MiSeq platform and obtained errors in our processed sequencing reads at a rate as low as 7.6 × 10(-6) per base sequenced...Continue Reading

  • References12
  • Citations95

References

  • References12
  • Citations95

Citations

Mentioned in this Paper

Polymerase
Sequencing
Tandem
High-Throughput Nucleotide Sequencing
Dideoxy Chain Termination DNA Sequencing
DNA, Circular
cDNA Library
Consensus Sequence
Computational Molecular Biology
High-Throughput DNA Sequencing

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