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[Establishment of target genomic DNA capturing system for next generation sequencing]
Dan Chen1, Wen Zhang, Zhi-Dong Zhu
1State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China. chendanvs@126.com
Yi Chuan = Hereditas
|April 26, 2011
Summary
This study developed a target genomic DNA capture and enrichment system for next-generation sequencing. The system efficiently enriches target regions, demonstrating feasibility for deep sequencing applications.
Area of Science:
- Genomics
- Molecular Biology
- Next-Generation Sequencing
Context:
- Deep sequencing requires efficient methods for capturing and enriching specific genomic DNA regions.
- Existing methods may have limitations in specificity and efficiency for targeted enrichment.
Purpose:
- To establish a robust system for target genomic DNA capture and enrichment.
- To enable deep sequencing of selected genomic regions using next-generation sequencing technologies.
Summary:
- Designed and synthesized 46,509 capture probes (baits) for 11,147 human gene regions using the Agilent eArray platform.
- Developed a workflow involving library preparation, hybridization with baits, hybrid selection, and PCR amplification, achieving up to 2^9-fold enrichment.
- Validated the system using SOLiD sequencing, with 70% of mapped tags matching target regions and average coverage exceeding 200-fold.
Impact:
- Demonstrates a feasible and efficient system for targeted genomic DNA enrichment.
- Facilitates deep sequencing of specific genomic regions, advancing research in genomics and personalized medicine.
- Provides a valuable tool for various applications, including disease gene discovery and variant analysis.
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