Centromere positioning orchestrates telomere bouquet formation and the initiation of meiotic differentiation.

ABSTRACT: Accurate gametogenesis requires the establishment of the telomere bouquet, an evolutionarily conserved, 3D chromosomal arrangement. In this spatial configuration, telomeres temporarily aggregate at the nuclear envelope during meiotic prophase, which facilitates chromosome pairing and recombination. The mechanisms governing the assembly of the telomere bouquet remain largely unexplored, primarily due to the challenges in visualizing and manipulating the bouquet. Here, using Schizosaccharomyces pombe as a model system to elucidate telomere bouquet function, we reveal that centromeres, traditionally perceived as playing a passive role in the chromosomal reorganization necessary for bouquet assembly, play a key role in the initiation of telomere bouquet formation. We demonstrate that centromer

SUBMITTER: Jimenez-Martin A 

PROVIDER: S-EPMC11747273 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature