ArticleNature communications2024
Chromosome architecture and low cohesion bias acrocentric chromosomes towards aneuploidy during mammalian meiosis.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- The Meiotic Spindle, Mechanisms of Chromosome Segregation and Aneuploidy in Aging Human Oocytes: An Update Review.Medicina (Kaunas, Lithuania) · 2026Review
- NEMP1 organizes the meiotic telomere-LINC interface to control chromosome movement and telomere integrity.bioRxiv : the preprint server for biology · 2026Article
- Organization of replicated chromosomes by DNA loops and sister chromatid cohesion.Nature reviews. Molecular cell biology · 2026Review
- Morphogen Gradients as Drivers of Mosaicism During Early Human Development.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026Review
- Chromosome Architecture Defined by the Meiosis-Specific Cohesin in Mammalian Germ Cells.Advances in experimental medicine and biology · 2026Review
- Anaysis of the association between chromosomal abnormalities in early missed abortion embryos and maternal age and AMH levels based on CNV-Seq.BMC pregnancy and childbirth · 2025Article
- Protein-targeting reverse genetic approaches: the future of oocyte and preimplantation embryo research.Molecular human reproduction · 2025Review
- From the Understanding of Maternal Molecules and Mechanisms to Predicting Embryonic Development.Reproductive medicine and biologyReview
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aneuploidy in eggs is a leading cause of miscarriages or viable developmental syndromes. Aneuploidy rates differ between individual chromosomes. For instance, chromosome 21 frequently missegregates, resulting in Down Syndrome. What causes chromosome-specific aneuploidy in meiosis is unclear. Chromosome 21 belongs to the class of acrocentric chromosomes, whose centromeres are located close to the chromosome end, resulting in one long and one short chromosome arm. We demonstrate that acrocentric chromosomes are generally more often aneuploid than metacentric chromosomes in porcine eggs. Kinetochores of acrocentric chromosomes are often partially covered by the short chromosome arm during meiosis I in human and porcine oocytes and orient less efficiently toward the spindle poles. These partially covered kinetochores are more likely to be incorrectly attached to the spindle. Additionally, sister chromatids of acrocentric chromosomes are held together by lower levels of cohesin, making them more vulnerable to age-dependent cohesin loss. Chromosome architecture and low cohesion therefore bias acrocentric chromosomes toward aneuploidy during mammalian meiosis.
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Registered trials
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