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From the same journal

Hybridization capture using short PCR products enriches small genomes by capturing flanking sequences (CapFlank)

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Published copy (DOI)


  • Kyriakos Tsangaras
  • Nathan Wales
  • Thomas Sicheritz-Pontén
  • Simon Rasmussen
  • Johan Michaux
  • Yasuko Ishida
  • Serge Morand
  • Marie Louise Kampmann
  • M. Thomas P. Gilbert
  • Alex D. Greenwood


Publication details

JournalPLoS ONE
DatePublished - 2 Oct 2014
Issue number10
Number of pages10
Original languageEnglish


Solution hybridization capture methods utilize biotinylated oligonucleotides as baits to enrich homologous sequences from next generation sequencing (NGS) libraries. Coupled with NGS, the method generates kilo to gigabases of high confidence consensus targeted sequence. However, in many experiments, a non-negligible fraction of the resulting sequence reads are not homologous to the bait. We demonstrate that during capture, the bait-hybridized library molecules add additional flanking library sequences iteratively, such that baits limited to targeting relatively short regions (e.g. few hundred nucleotides) can result in enrichment across entire mitochondrial and bacterial genomes. Our findings suggest that some of the off-target sequences derived in capture experiments are non-randomly enriched, and that CapFlank will facilitate targeted enrichment of large contiguous sequences with minimal prior target sequence information.

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