Construction of yeast artificial chromosome libraries by pulsed-field gel electrophoresis.
- Yeast artificial chromosomes (YACs; 1) are rapidly becoming the major cloning system to study eukaryotic genomes by physical mapping and chromosome walking projects (1-6). The main advantages of YACs over prokaryotic-based cloning systems are their large insert capacity (100-1500 kb), and their ability to maintain sequences that are unstable or not well represented in bacteriophage or cosmid genomic libraries.
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