Microsatellite discovery by deep sequencing of enriched genomic libraries
Quentin Santana1, Martin Coetzee, Emma Steenkamp
1Department of Genetics, Forestry and Agricultural Biotechnology Institute, University of Pretoria, South Africa. quentin.santana@fabi.up.ac.za
Biotechniques
|March 26, 2009
Summary
Next-generation sequencing, specifically pyrosequencing, offers a rapid and cost-effective method for developing microsatellite markers. This approach significantly accelerates genetic studies by streamlining the discovery of these essential molecular tools.
Area of Science:
- Genomics
- Molecular Biology
- Population Genetics
Background:
- Microsatellites are crucial molecular markers for population dynamics research.
- Traditional microsatellite development is labor-intensive and time-consuming.
- Next-generation sequencing technologies present potential for faster marker development.
Purpose of the Study:
- To evaluate the efficacy of deep sequencing using the 454 GS-FLX system for rapid microsatellite marker development.
- To establish a cost-effective and efficient protocol for identifying microsatellites.
Main Methods:
- Genomic DNA from Fusarium circinatum, Sirex noctilio, and Deladenus siricidicola was used.
- Microsatellite-enriched DNA libraries were generated using FIASCO and ISSR-PCR methods.
- Deep sequencing was performed using the 454 Life Sciences/Roche GS-FLX platform.
Main Results:
- Over 1.2 megabases of sequence data were generated.
- 873 microsatellites with sufficient flanking sequence for primer design were identified.
- The pyrosequencing approach proved rapid, effective, and economical.
Conclusions:
- Pyrosequencing is an outstanding technology for accelerating microsatellite discovery.
- This method offers a significant improvement over traditional techniques for developing molecular markers.
- The developed protocol enhances the speed and efficiency of genetic studies.
