• Researchers used Pico-C to map 3D genome structure. • Found pre‑birth DNA scaffolding before embryo activation. • Technology provides unprecedented detail. • Genome not a blank slate; structure exists. • Findings published in Nature Genetics. • Advances understanding of early development.

Article Summaries:

  • Scientists have discovered that the genome of a freshly fertilized egg is not a featureless “blank slate” but already contains a complex 3D scaffold. In a study published in Nature Genetics, Professor Juanma Vaquerizas and colleagues used a novel technique called Pico‑C to map chromatin interactions at unprecedented resolution. The data reveal that structural organization of DNA is established before the embryo’s genes are activated, suggesting that early developmental cues may be guided by pre‑existing chromatin architecture rather than solely by transcriptional programs.

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