Mysteries in embryonic development: How can errors arise so frequently at the beginning of mammalian life?

Chromosome segregation errors occur frequently during female meiosis but also in the first mitoses of mammalian preimplantation development. Such errors can lead to aneuploidy, spontaneous abortions, and birth defects. Some of the mechanisms underlying these errors in meiosis have been deciphered bu...

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Hauptverfasser: Schneider, Isabell (VerfasserIn) , Ellenberg, Jan (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: March 6, 2019
In: PLoS biology
Year: 2019, Jahrgang: 17, Heft: 3
ISSN:1545-7885
DOI:10.1371/journal.pbio.3000173
Online-Zugang:Verlag, Volltext: https://doi.org/10.1371/journal.pbio.3000173
Verlag, Volltext: https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3000173
Volltext
Verfasserangaben:Isabell Schneider, Jan Ellenberg

MARC

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520 |a Chromosome segregation errors occur frequently during female meiosis but also in the first mitoses of mammalian preimplantation development. Such errors can lead to aneuploidy, spontaneous abortions, and birth defects. Some of the mechanisms underlying these errors in meiosis have been deciphered but which mechanisms could cause chromosome missegregation in the first embryonic cleavage divisions is mostly a “mystery”. In this article, we describe the starting conditions and challenges of these preimplantation divisions, which might impair faithful chromosome segregation. We also highlight the pending research to provide detailed insight into the mechanisms and regulation of preimplantation mitoses. 
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