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Centromere inheritance through the germline

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Abstract

The centromere directs chromosome segregation and genetic inheritance but is not itself heritable in a canonical, DNA-based manner. In most species, centromeres are epigenetically defined by the presence of a histone H3 variant centromere protein A (CENP-A), independent of underlying DNA sequence. Therefore, centromere inheritance depends on maintaining the CENP-A nucleosome mark across generations. Experiments in cycling somatic cells have led to a model in which centromere identity is maintained by a cell cycle-coupled CENP-A chromatin assembly pathway. However, the processes of animal gametogenesis pose unique challenges to centromere inheritance because of the extended cell cycle arrest and the massive genome reorganization in the female and male germline, respectively. Here, we review our current understanding of germline centromere inheritance and highlight outstanding questions.

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Acknowledgements

We acknowledge the members of the Black and Lampson labs and Richard M. Schultz for helpful comments on the manuscript. We thank R. Margolis (Sanford-Burnham Institute) for allowing us to reproduce data from published papers. We apologize to any authors whose work we were unable to cite.

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Correspondence to Michael A. Lampson or Ben E. Black.

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Writing of this review was supported by National Institutes of Health grant HD058730 (to M.A.L. and B.E.B.).

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The authors declare that they have no conflict of interest.

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All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

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Das, A., Smoak, E.M., Linares-Saldana, R. et al. Centromere inheritance through the germline. Chromosoma 126, 595–604 (2017). https://doi.org/10.1007/s00412-017-0640-y

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  • DOI: https://doi.org/10.1007/s00412-017-0640-y

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