期刊
GENETICS
卷 180, 期 4, 页码 1799-1808出版社
GENETICS SOCIETY AMERICA
DOI: 10.1534/genetics.108.087999
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资金
- NCI NIH HHS [R33 CA125520-02, CA125520, R33 CA125520] Funding Source: Medline
- NHGRI NIH HHS [HG01620, R01 HG001620, HG00193, F32 HG000193] Funding Source: Medline
- NIGMS NIH HHS [GM50237, GM39067, GM48624, R37 GM050237, R01 GM050237, R01 GM039067, GM57254, R01 GM048624] Funding Source: Medline
We have created a resource to rapidly map genetic traits to specific chromosomes in yeast. This mapping is done using a set of 16 yeast strains each containing a different chromosome with a conditionally functional centromere. Conditional centromere function is achieved by integration of a GAL1 promoter in cis to centromere sequences. We show that the 16 yeast chromosomes can be individually lost in diploid strains, which become hemizygous for the destabilized chromosome. Interestingly, most 2n - 1 strains endoduplicate and become 2n. We also demonstrate how chromosome loss in this set of strains can be used to map both recessive and dominant markets to specific chromosomes. In addition, we show that this method can be used to rapidly validate gene assignments from screens of strain libraries such as the yeast gene disruption collection.
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