Koch Lori B, Marston Adele L
Centre for Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, United Kingdom.
Centre for Cell Biology, University of Edinburgh, Edinburgh EH9 3BF, United Kingdom.
Curr Opin Cell Biol. 2025 Feb 26;94:102486. doi: 10.1016/j.ceb.2025.102486.
Meiosis generates gametes through a specialised cell cycle that reduces the genome by half. Homologous chromosomes are segregated in meiosis I and sister chromatids are segregated in meiosis II. Centromeres and kinetochores play central roles in instructing this specialised chromosome segregation pattern. Accordingly, kinetochores acquire meiosis-specific modifications. Here we contextualise recent highlights in our understanding of how centromeres and kinetochores direct the sorting of chromosomes into gametes via meiosis.
减数分裂通过一个特殊的细胞周期产生配子,该周期将基因组减半。同源染色体在减数分裂I中分离,姐妹染色单体在减数分裂II中分离。着丝粒和动粒在指导这种特殊的染色体分离模式中起着核心作用。因此,动粒会发生减数分裂特异性修饰。在这里,我们将近期关于着丝粒和动粒如何通过减数分裂将染色体分选到配子中的理解要点进行了梳理。