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Sex-specific developmental gene expression atlas unveils dimorphic gene networks in C. elegans

Author

Listed:
  • Rizwanul Haque

    (Weizmann Institute of Science
    Weizmann Institute of Science)

  • Sonu Peedikayil Kurien

    (Weizmann Institute of Science
    Weizmann Institute of Science)

  • Hagar Setty

    (Weizmann Institute of Science
    Weizmann Institute of Science)

  • Yehuda Salzberg

    (Weizmann Institute of Science
    Weizmann Institute of Science)

  • Gil Stelzer

    (Weizmann Institute of Science)

  • Einav Litvak

    (Weizmann Institute of Science)

  • Hila Gingold

    (Tel Aviv University)

  • Oded Rechavi

    (Tel Aviv University)

  • Meital Oren-Suissa

    (Weizmann Institute of Science
    Weizmann Institute of Science)

Abstract

Sex-specific traits and behaviors emerge during development by the acquisition of unique properties in the nervous system of each sex. However, the genetic events responsible for introducing these sex-specific features remain poorly understood. In this study, we create a comprehensive gene expression atlas of pure populations of hermaphrodites and males of the nematode Caenorhabditis elegans across development. We discover numerous differentially expressed genes, including neuronal gene families like transcription factors, neuropeptides, and G protein-coupled receptors. We identify INS-39, an insulin-like peptide, as a prominent male-biased gene expressed specifically in ciliated sensory neurons. We show that INS-39 serves as an early-stage male marker, facilitating the effective isolation of males in high-throughput experiments. Through complex and sex-specific regulation, ins-39 plays pleiotropic sexually dimorphic roles in various behaviors, while also playing a shared, dimorphic role in early life stress. This study offers a comparative sexual and developmental gene expression database for C. elegans. Furthermore, it highlights conserved genes that may underlie the sexually dimorphic manifestation of different human diseases.

Suggested Citation

  • Rizwanul Haque & Sonu Peedikayil Kurien & Hagar Setty & Yehuda Salzberg & Gil Stelzer & Einav Litvak & Hila Gingold & Oded Rechavi & Meital Oren-Suissa, 2024. "Sex-specific developmental gene expression atlas unveils dimorphic gene networks in C. elegans," Nature Communications, Nature, vol. 15(1), pages 1-18, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48369-z
    DOI: 10.1038/s41467-024-48369-z
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