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Optimized multiplex PCR: efficiently closing a whole-genome shotgun sequencing project.
H Tettelin1, D Radune, S Kasif
1The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, Maryland 20850, USA. tettelin@tigr.org
Genomics
|January 25, 2000
Summary
A novel multiplex PCR method accelerates whole-genome shotgun sequencing by reducing lab procedures. This technique efficiently sequences DNA gaps, aiding in completing genome projects like Streptococcus pneumoniae.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- Whole-genome shotgun sequencing projects often face challenges in closing sequence gaps.
- Efficiently sequencing unknown DNA between contiguous sequences is crucial for genome assembly.
Purpose of the Study:
- To develop a rapid method for closing gaps in whole-genome shotgun sequencing projects.
- To minimize laboratory procedures required for sequencing inter-contiguous DNA.
Main Methods:
- Employing multiplex PCR (polymerase chain reaction) with a novel pooling strategy.
- Utilizing multiplex sequencing to interpret multiplex PCR results, where multiple PCR primers are used in a single sequencing reaction.
- Presenting two optimized protocols: one minimizing pipetting and another minimizing reaction numbers.
Main Results:
- The developed method significantly reduces the number of laboratory procedures.
- The pipette-optimized multiplex PCR protocol was successfully applied in the final stages of the Streptococcus pneumoniae genome sequence closure.
- Excellent results were achieved in completing the genome sequence.
Conclusions:
- The novel multiplex PCR and pooling strategy offers an efficient solution for closing gaps in large-scale sequencing projects.
- This method streamlines the process of sequencing unknown DNA, accelerating genome assembly.
- The successful application in the Streptococcus pneumoniae project demonstrates the method's practical utility and effectiveness.