Recombination is an essential part of meiosis: in almost all organisms, including Saccharomyces cerevisiae, proper chromosome segregation and the viability of meiotic products is dependent upon normal levels of recombination. In this article we examine the kinetics of the meiotic divisions in four mutants defective in the initiation of recombination. We find that mutations in any of three Early Exchange genes (REC104, REC114 or REC102) confer a phenotype in which the reductional division occurs earlier than in an isogenic wild-type diploid. We also present data confirming previous reports that strains with a mutation in the Early Exchange gene. MEI4 undergo the first division at about the same time as wild-type cells. The rec104 mutation is epistatic to the mei4 mutation for the timing of the first division. These observations suggest a possible relationship between the initiation of recombination and the timing of the reductional division. These data also allow these four Early Exchange genes examined to be distinguished in terms of their role in coordinating recombination with the reductional division.
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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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