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High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization
Published on: June 28, 2012
Construction of high-resolution comparative maps in mammals using BAC-end sequences
Denis M Larkin1, Harris A Lewin
1Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
Methods in Molecular Biology (Clifton, N.J.)
|July 17, 2008
Summary
Whole-genome bacterial artificial chromosome (BAC) libraries aid in creating detailed genomic maps for mammals. These BAC-end sequences enable high-resolution comparative mapping, advancing our understanding of mammalian genome evolution.
Area of Science:
- Genomics
- Comparative Genomics
- Mammalian Genetics
Background:
- Bacterial artificial chromosome (BAC) libraries offer valuable resources for mammalian genome research.
- High-resolution ordered genomic maps are crucial for genetic analysis and evolutionary studies.
- Comparative genomics facilitates understanding genome structure and evolution across species.
Purpose of the Study:
- To describe methods for constructing high-quality radiation hybrid comparative maps using BAC-end sequences (BESs).
- To apply this approach for creating porcine-human and cattle-human comparative maps.
- To highlight the utility of these maps for analyzing mammalian chromosome evolution and genome assembly.
Main Methods:
- Construction of whole-genome BAC libraries for approximately 40 mammalian species.
- Generation and utilization of BAC-end sequences (BESs) for comparative mapping.
- Development of radiation hybrid comparative maps with approximately 1 Mbp resolution.
Main Results:
- Successful construction of high-quality radiation hybrid comparative maps using BESs.
- Generation of approximately 1 Mbp resolution porcine-human and cattle-human comparative maps.
- Demonstration of BESs as a valuable resource for mammalian genome analysis.
Conclusions:
- High-resolution ordered comparative maps built with BESs are essential for studying mammalian chromosome evolution.
- These maps serve as a foundational resource for assembling whole-genome shotgun sequences.
- The described procedures provide a robust framework for advancing comparative genomics in mammals.
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