Lesson plan

ABI Solid Sequencing

Sequencing by Oligonucleotide Ligation and Detection (SOLiD) is a DNA sequencing technology developed by Life Technologies and has been available since 2006. It generates 10 8 - 10 9 small sequence reads at one time. It uses 2 base encoding to decode the raw data generated by the sequencing platform into sequence data. This method should not be confused with "sequencing by synthesis," a principle used by Roche-454 pyrosequencing (introduced in 2005, generating millions of 200-400bp reads in 2009), and the Solexa system (now owned by Illumina) (introduced in 2006, generating hundreds of millions of 50-100bp reads in 2009) These methods have reduced the cost from $0.01/base in 2004 to nearly $0.0001/base in 2006 and increased the sequencing capacity from 1,000,000 bases/machine/day in 2004 to more than 5,000,000,000 bases/machine/day in 2009. Over 30 publications exist describing its use first for nucleosome positioning from Valouev et al., transcriptional profiling or strand sensitive RNA-Seq with Cloonan et al., single cell transcriptional profiling with Tang et al. and ultimately human resequencing with McKernan et al. The method used by this machine (sequencing-by-ligation) has been reported to have some issue sequencing palindromic sequences.

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Article summary

Sequencing by Oligonucleotide Ligation and Detection (SOLiD) is a DNA sequencing technology developed by Life Technologies and has been available since 2006. It generates 10 8 - 10 9 small sequence reads at one time. It uses 2 base encoding to decode the raw data generated by the sequencing platform into sequence data. This method should not be confused with "sequencing by synthesis," a principle used by Roche-454 pyrosequencing (introduced in 2005, generating millions of 200-400bp reads in 2009), and the Solexa system (now owned by Illumina) (introduced in 2006, generating hundreds of millions of 50-100bp reads in 2009) These methods have reduced the cost from $0.01/base in 2004 to nearly $0.0001/base in 2006 and increased the sequencing capacity from 1,000,000 bases/machine/day in 2004 to more than 5,000,000,000 bases/machine/day in 2009. Over 30 publications exist describing its use first for nucleosome positioning from Valouev et al., transcriptional profiling or strand sensitive RNA-Seq with Cloonan et al., single cell transcriptional profiling with Tang et al. and ultimately human resequencing with McKernan et al. The method used by this machine (sequencing-by-ligation) has been reported to have some issue sequencing palindromic sequences.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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Key claims and bibliography are generated from the same tracked claims and sources as the article page.