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A high-density YAC contig map of human chromosome 22
J E Collins1, C G Cole, L J Smink
1Sanger Centre, Hinxton, Cambridge, UK.
Nature
|September 28, 1995
Summary
Researchers created a detailed map of human chromosome 22 using yeast artificial chromosomes (YACs). This high-resolution map integrates genetic and physical data, aiding future gene discovery and sequencing efforts.
Area of Science:
- Genomics
- Human Genetics
- Molecular Biology
Background:
- Human chromosome 22 is a key area for genetic research.
- Previous physical and genetic maps of chromosome 22 lacked integration.
- Accurate mapping is crucial for understanding gene content and sequence.
Purpose of the Study:
- To construct a high-resolution, integrated clone map of human chromosome 22.
- To establish a consensus map combining physical and genetic data.
- To provide a foundation for comprehensive gene identification and DNA sequencing of chromosome 22.
Main Methods:
- Utilized yeast artificial chromosomes (YACs) for clone mapping.
- Ordered DNA landmarks across 705 YACs.
- Achieved an average landmark density exceeding one per 70 kilobases.
Main Results:
- Developed a high-resolution clone map of human chromosome 22.
- Integrated diverse physical and genetic mapping data into a single consensus map.
- The map represents the current capabilities of YAC-based mapping resources.
Conclusions:
- The constructed map offers a comprehensive view of human chromosome 22.
- This resource facilitates the determination of the complete gene content.
- It serves as a critical basis for sequencing the entire genomic DNA of chromosome 22.