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Updated: Jun 4, 2026
08:48
High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization
Published on: June 28, 2012
Sequence-based physical mapping of complex genomes by whole genome profiling
Jan van Oeveren1, Marjo de Ruiter, Taco Jesse
1Keygene N.V., Wageningen, The Netherlands.
Genome Research
|February 18, 2011
Summary
Whole Genome Profiling (WGP) is a new sequencing technology for building physical maps of complex genomes. This method successfully created a high-quality map of the Arabidopsis thaliana genome, aiding future genomic research.
Area of Science:
- Genomics
- Bioinformatics
- Molecular Biology
Background:
- Physical mapping is crucial for assembling complex genomes.
- Bacterial Artificial Chromosome (BAC) contigs are essential for genome construction.
- Next-generation sequencing technologies offer new possibilities for genome mapping.
Purpose of the Study:
- To introduce Whole Genome Profiling (WGP), a novel sequencing-based physical mapping technology.
- To demonstrate the application of WGP for constructing BAC contigs in complex genomes.
- To validate the accuracy and efficiency of WGP using Arabidopsis thaliana.
Main Methods:
- WGP utilizes short read sequences from restriction fragments of pooled BAC clones.
- Sequence tags are generated and assigned to individual BAC clones.
- BAC contigs are assembled based on shared sequence tags.
Main Results:
- A de novo WGP map of Arabidopsis thaliana ecotype Columbia was constructed.
- The map comprised 350 BAC contigs, with 98% assembled correctly.
- The map covered 97% of the 102-Mb genome, demonstrating high accuracy and coverage.
Conclusions:
- WGP is a robust technology for physical mapping of complex plant genomes.
- WGP maps serve as valuable scaffolds for anchoring genetic linkage maps.
- WGP facilitates the integration of whole genome sequence data for comprehensive genomic analysis.
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