dCATCH-Seq: improved sequencing of large continuous genomic targets with double-hybridization
Yanfeng Zhang1, Jun Song1, Kenneth Day1
1HudsonAlpha Institute for Biotechnology, Huntsville, USA.
BMC Genomics
|October 25, 2017
Summary
We developed dCATCH-Seq, an improved targeted sequencing method with high specificity and accuracy. This scalable approach enables robust investigation of genetic and epigenetic features for broad scientific applications.
Area of Science:
- Genomics
- Molecular Biology
- Epigenetics
Background:
- Targeted sequencing is vital in basic and translational research.
- Low on-target rates in current methods impact data quality and coverage requirements.
Purpose of the Study:
- To present an improved targeted sequencing method, dCATCH-Seq.
- To enhance on-target rates and data quality for genetic and epigenetic analyses.
Main Methods:
- dCATCH-Seq utilizes two rounds of in-solution hybridization with probes from genomic clone templates.
- Applied to capture large genomic regions within the human MHC and chromosome 11.
- Coupled with bisulfite sequencing for DNA methylation profiling.
Main Results:
- dCATCH-Seq demonstrated high reproducibility and ~95% capture specificity across cell types.
- Achieved high accuracy in genetic variant detection and HLA typing.
- Successfully profiled DNA methylation at both CpG and non-CpG sites.
Conclusions:
- dCATCH-Seq is a powerful and scalable targeted sequencing approach.
- Enables comprehensive investigation of both genetic and epigenetic features.
- Offers improved solutions for genomic and epigenomic research applications.
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