Centromeres are dismantled by foundational meiotic proteins Spo11 and Rec8

Haitong Hou*, Eftychia Kyriacou, Rahul Thadani, Michael Klutstein, Joseph H. Chapman, Julia Promisel Cooper*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Meiotic processes are potentially dangerous to genome stability and could be disastrous if activated in proliferative cells. Here we show that two key meiosis-defining proteins, the topoisomerase Spo11 (which forms double-strand breaks) and the meiotic cohesin Rec8, can dismantle centromeres. This dismantlement is normally observable only in mutant cells that lack the telomere bouquet, which provides a nuclear microdomain conducive to centromere reassembly1; however, overexpression of Spo11 or Rec8 leads to levels of centromere dismantlement that cannot be countered by the bouquet. Specific nucleosome remodelling factors mediate centromere dismantlement by Spo11 and Rec8. Ectopic expression of either protein in proliferating cells leads to the loss of mitotic kinetochores in both fission yeast and human cells. Hence, while centromeric chromatin has been characterized as extraordinarily stable, Spo11 and Rec8 challenge this stability and may jeopardize kinetochores in cancers that express meiotic proteins.

Original languageAmerican English
Pages (from-to)671-676
Number of pages6
Issue number7851
StatePublished - 25 Mar 2021

Bibliographical note

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© 2021, The Author(s), under exclusive licence to Springer Nature Limited.


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