DNA double-strand breaks regulate the cleavage-independent release of Rec8-cohesin during yeast meiosis

The mitotic cohesin complex necessary for sister chromatid cohesion and chromatin loop formation shows local and global association to chromosomes in response to DNA double-strand breaks (DSBs). Here, by genome-wide binding analysis of the meiotic cohesin with Rec8 as a kleisin, we found that Rec8 shows dynamic localization from middle to late meiotic prophase I with cleavage-independent global dissociation along chromosomes, driven by meiotic DSB formation. Each Rec8 binding site on the chromosome axis follows distinct dynamics with dissociation and association. Centromeres also showed reduced Rec8 binding in late prophase I relative to mid-prophase I, implying chromosome remodeling of the regions. Rec8 dissociation profile per chromosome is largely correlated with meiotic DSB density. Indeed, the spo11 mutant deficient in meiotic DSB formation did not show the cleavage-independent dissociation of Rec8 in late meiotic prophase I. These suggest the presence of a regulatory pathway for global Rec8-cohesin dynamics in response to meiotic DSBs. Overall design: Chromatin immunoprecipitation DNA-sequencing (ChIP-seq) for meiotic cohesin Rec8 in budding yeast S. cerevisiae

Identifier
Source https://data.blue-cloud.org/search-details?step=~012FD3562721F636F9664DA78F45C874500FD5E38E7
Metadata Access https://data.blue-cloud.org/api/collections/FD3562721F636F9664DA78F45C874500FD5E38E7
Provenance
Instrument NextSeq 500; ILLUMINA
Publisher Blue-Cloud Data Discovery & Access service; ELIXIR-ENA
Contributor Osaka University
Publication Year 2024
OpenAccess true
Contact blue-cloud-support(at)maris.nl
Representation
Discipline Marine Science