Cited by 376Genomics and Phylogenetic StudiesSingle-cell and spatial transcriptomicsFractal and DNA sequence analysis

Illumina error profiles: resolving fine-scale variation in metagenomic sequencing data

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Schirmer, Melanie, D’Amore, Rosalinda, Ijaz, Umer Z., Hall, Neil, Quince, Christopher·2016·BMC Bioinformatics

Abstract

Background: Illumina’s sequencing platforms are currently the most utilised sequencing systems worldwide. The technology has rapidly evolved over recent years and provides high throughput at low costs with increasing read-lengths and true paired-end reads. However, data from any sequencing technology contains noise and our understanding of the peculiarities and sequencing errors encountered in Illumina data has lagged behind this rapid development. Results: We conducted a systematic investigation of errors and biases in Illumina data based on the largest collection of in vitro metagenomic data sets to date. We evaluated the Genome Analyzer II, HiSeq and MiSeq and tested state-of-the-art low input library preparation methods. Analysing in vitro metagenomic sequencing data allowed us to determine biases directly associated with the actual sequencing process. The position- and nucleotide-specific analysis revealed a substantial bias related to motifs (3mers preceding errors) ending in “GG”. On average the top three motifs were linked to 16 % of all substitution errors. Furthermore, a preferential incorporation of ddGTPs was recorded. We hypothesise that all of these biases are related to the engineered polymerase and ddNTPs which are intrinsic to any sequencing-by-synthesis method. We show that quality-score-based error removal strategies can on average remove 69 % of the substitution errors - however, the motif-bias remains. Conclusion: Single-nucleotide polymorphism changes in bacterial genomes can cause significant changes in phenotype, including antibiotic resistance and virulence, detecting them within metagenomes is therefore vital. Current error removal techniques are not designed to target the peculiarities encountered in Illumina sequencing data and other sequencing-by-synthesis methods, causing biases to persist and potentially affect any conclusions drawn from the data. In order to develop effective diagnostic and therapeutic approaches we need to be able to identify systematic sequencing errors and distinguish these errors from true genetic variation.

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  • Errors may be related to sequencing context, with highest rate for nucleotide T, which in our case would be erroneous once in every 1250 nucleotides, and error rates for C, G, and A being much lower.

    “Other studies have shown that errors may be related to the sequencing context, where the highest rate of errors was found for nucleotide T, which in our case would result to be erroneous once in every 1250 nucleotides, and the error rates for C, G, and A being much lower39.”

    From DNA synthesis for true random number generation (2020) · cites this paper as [39]

  • Expected error rates increase towards the end of the DNA strand.

    “Overall, expected error rates were found to increase towards the end of the DNA strand39.”

    From DNA synthesis for true random number generation (2020) · cites this paper as [39]

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Authors
Schirmer, M., D’Amore, R., Ijaz, U. Z., Hall, N., & Quince, C.
Affiliations
  • Broad Institute (US)
  • University of Glasgow (GB)
  • University of Liverpool (GB)
  • University of Warwick (GB)
Corresponding author
Schirmer, Melanie
Venue
BMC Bioinformatics
Published
2016-03-11
Volume
17
Issue
1
Pages
125-125
ISSN
1471-2105 (ISSN-L)
OpenAlex
W2295828257
Cited by
376
References
21
Citations by year
2026: 23 · 2025: 15 · 2024: 29 · 2023: 29 · 2022: 32 · 2021: 77 · 2020: 38 · 2019: 52 · 2018: 51 · 2017: 20 · 2016: 10
FWCI
23.03
Type
journal article
Language
en
Open access
Locations
  • BMC Bioinformatics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Warwick Research Archive Portal (University of Warwick) (acceptedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion)
  • UEA Digital Repository (University of East Anglia) (submittedVersion)
Funders
  • Natural Environment Research Council (NE/L011956/1)
  • Technology Strategy Board (TS/J000175/1)
  • Engineering and Physical Sciences Research Council (EP/H003851/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fractal and DNA sequence analysis
Keywords
sequencing bias, metagenomics, substitution errors, sequencing by synthesis, single nucleotide polymorphisms, bacterial genomes, HiSeq, MiSeq
MeSH terms
Archaea, Bacteria, Genome, Bacterial, Sequence Analysis, DNA, Polymorphism, Single Nucleotide, Genome, Archaeal, GC Rich Sequence, Metagenomics, High-Throughput Nucleotide Sequencing, Nucleotide Motifs, Signal-To-Noise Ratio

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