Abstract:1 Cyclin-dependent kinase 1 (CDK1) plays essential roles in cell cycle regulation. 2 However, due to the early embryonic lethality of mouse Cdk1 mutants, the in vivo 3 role of CDK1 in regulating cell cycle and embryonic development remains unclear. 4Here, by generating zebrafish cdk1 mutants using CRISPR/Cas9 system, we show 5 that cdk1 -/embryos exhibit severe microphthalmia accompanied with multiple 6 defects in polarized cell division, S phase entry and M phase progression, cell 7 apoptosis and cell differe… Show more
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