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April 16, 2026Nucleic Acids ResearchOpen Access

Developmental stage dominates cell-type identity and reveals a chromatin regulatory function for Rad50 in Drosophila

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Authors

TBThomas BoutetRSRosy SakrMMMarta Marzullo

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Overview

High-throughput assays reveal stage-specific transcriptional signatures in Drosophila cell types, implying new insights into cell identity.

Key Points

  • The aim is to understand how developmental stage influences cell-type identity in Drosophila and to explore Rad50's chromatin regulatory role.
  • Used high-throughput assays to analyze transcriptional landscapes of Drosophila cell types
  • Compared cell-type transcription within different developmental stages (larval and embryonic)
  • Conducted transcriptomic and chromatin accessibility analyses after Rad50 loss
  • All cell types share a stronger stage-specific transcriptional signature than a cell-specific one
  • Larval stage shows enrichment for DNA repair genes, particularly the MRN complex
  • Loss of Rad50 disrupts histone modification patterns and triggers embryonic gene expression in larval CNS

Cite This Study

Boutet et al. (2026) studied this question.

synapsesocial.com/papers/69e07d732f7e8953b7cbe590https://doi.org/10.1093/nar/gkag294
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