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The CEPH YAC library.

J Dausset¹, P Ougen, H Abderrahim

¹Centre d'Etude du Polymorphisme Humain (C.E.P.H.), Paris.

Behring Institute Mitteilungen

|April 1, 1992

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Yeast artificial chromosomes (YACs) are crucial for complex genome physical mapping. This study optimized YAC construction, yielding large insert clones for human genome analysis and efficient screening.

Area of Science:

Genomics
Molecular Biology
Bioinformatics

Background:

Yeast artificial chromosomes (YACs) are valuable tools for physical mapping of complex genomes due to their large insert capacity.
Analyzing megabase-sized regions of the human genome requires genomic libraries with large-insert clones.

Purpose of the Study:

To investigate parameters for increasing YAC insert size.
To construct a high-capacity YAC library for human genome physical mapping.

Main Methods:

Systematic investigation of parameters influencing YAC insert size.
Construction of a YAC genomic library.
Characterization of YAC clone sizes and library coverage.

Main Results:

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A YAC library containing over 85,000 clones was constructed.

Mean YAC insert sizes ranged from 430 kb to 1,200 kb.

The library represents 13 haploid equivalents of the human genome.

Conclusions:

Optimized YAC construction enables the generation of large-insert clones essential for complex genome analysis.
The developed YAC library facilitates rapid screening for large-scale physical mapping of the human genome.