If genetically modified organisms (GMOs) are spread through the natural environment, it might affect the natural environment. To help prevent the spread of GMOs, we examined whether it is possible to introduce conditional lethality by excising centromeric DNA from a chromosome by site-specific recombination in Saccharomyces cerevisiae as model organism. First, we constructed haploid cells in which excision of the centromeric DNA from chromosome IV can occur due to recombinase induced by galactose. By this excision, cell death can occur. In diploid cells, cell death can also occur by excision from both homologous chromosomes IV. Furthermore, cell death can occur in the case of chromosome V. A small number of surviving cells appeared with excision of centromeric DNA, and the diploid showed greater viability than the haploid in both chromosomes IV and V. The surviving cells appeared mainly due to deletion of a recombination target site (RS) from the chromosome.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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