Related Experiment Videos
An oligo-screening strategy to fill gaps found during shotgun sequencing projects
1Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, England.
DNA Sequence : the Journal of DNA Sequencing and Mapping
|October 16, 1999
Abstract:
During the course of projects to sequence human and nematode cosmids we encountered great difficulties generating contiguous sequence in regions with repetitive DNA (Alu repeats in humans and tandem or inverted repeats in the nematode). We have developed a simple and efficient strategy to fill gaps. By screening M13, plasmid or phagemid libraries with oligonucleotides flanking the gap, clones are identified that contiguate the cosmid sequence. Our method has been integrated into the GAP4 sequence assembly program. The strategy reduces both time and costs in large scale sequencing projects.