Overcoming gene dosage barriers in mammalian development: An imprinting balancing act.

Liu, Zhengfeng; Bartolomei, Marisa S · Cell Stem Cell · 2025

basic_science · Level V

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Abstract

Genomic imprinting ensures parent-of-origin gene expression and prevents uniparental development. In this issue of Cell Stem Cell, Li et al.<sup>1</sup> extensively engineered androgenic haploid embryonic stem cells to overcome imprinting barriers, producing adult bi-paternal mice, albeit with low efficiency, and providing insights into roles of imprinted genes in development.

Medical subject headings