Homologue pairing mediates both recombination and segregation of chromosomes at meiosis I. The recognition of nucleic-acid-sequence homology within the somatic nucleus has an impact on DNA repair and epigenetic control of gene expression. Here we investigate interchromosomal interactions using a non-invasive technique that allows tagging and visualization of DNA sequences in vegetative and meiotic live yeast cells. In non-meiotic cells, chromosomes are ordered in the nucleus, but preferential pairing between homologues is not observed. Association of tagged chromosomal domains occurs irrespective of their genomic location, with some preference for similar chromosomal positions. Here we describe a new phenomenon that promotes associations between sequence-identical ectopic tags with a tandem-repeat structure. These associations, termed interchromosome trans-associations, may underlie epigenetic phenomena.
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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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| Evidence ID | Analyze ID | File | Description |
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