Automated correction of genome sequence errors

Pawel Gajer, Michael Schatz, Steven L. Salzberg

Research output: Contribution to journalArticle

Abstract

By using information from an assembly of a genome, a new program called AutoEditor significantly improves base calling accuracy over that achieved by previous algorithms. This in turn improves the overall accuracy of genome sequences and facilitates the use of these sequences for polymorphism discovery. We describe the algorithm and its application in a large set of recent genome sequencing projects. The number of erroneous base calls in these projects was reduced by 80%. In an analysis of over one million corrections, we found that AutoEditor made just one error per 8828 corrections. By substantially increasing the accuracy of base calling, AutoEditor can dramatically accelerate the process of finishing genomes, which involves closing all gaps and ensuring minimum quality standards for the final sequence. It also greatly improves our ability to discover single nucleotide polymorphisms (SNPs) between closely related strains and isolates of the same species.

Original languageEnglish (US)
Pages (from-to)562-569
Number of pages8
JournalNucleic acids research
Volume32
Issue number2
DOIs
StatePublished - Mar 10 2004

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ASJC Scopus subject areas

  • Genetics

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