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An STS-based map of the human genome
T J Hudson1, L D Stein, S S Gerety
1Whitehead-MIT Center for Genome Research, Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.
Science (New York, N.Y.)
|December 22, 1995
Summary
Scientists created a detailed human genome map with 15,086 sequence-tagged sites (STSs), integrating genetic and radiation hybrid data. This comprehensive map aids in understanding genome structure and facilitates future large-scale sequencing projects.
Area of Science:
- Genomics
- Human Genetics
- Bioinformatics
Background:
- The human genome project requires high-resolution physical maps for efficient sequencing and gene localization.
- Previous mapping efforts utilized genetic linkage and radiation hybrid methods with varying resolutions.
Purpose of the Study:
- To construct an integrated physical map of the human genome.
- To provide a scaffold for large-scale human genome sequencing.
- To serve as a foundation for a human genome transcript map.
Main Methods:
- Assembly of a radiation hybrid map with 6193 loci.
- Incorporation of a genetic linkage map with 5264 loci.
- STS-content screening of 10,850 loci against a yeast artificial chromosome library.
Main Results:
- Construction of a human genome physical map with 15,086 sequence-tagged sites (STSs) at 199 kb average spacing.
- Integrated map achieved 99% radiation hybrid and 94% physical coverage of the human genome.
- Localized over 3235 expressed sequences, contributing to a transcript map initiative.
Conclusions:
- The integrated map provides a robust framework for human genome research.
- This map significantly advances the goal of comprehensive human genome sequencing.
- It represents a crucial step towards a functional transcript map of the human genome.