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Elevated ozone disrupts mating boundaries in drosophilid flies

Author

Listed:
  • Nan-Ji Jiang

    (Max Planck Institute for Chemical Ecology
    Max Planck Institute for Chemical Ecology)

  • Xinqi Dong

    (Max Planck Institute for Chemical Ecology)

  • Daniel Veit

    (Max Planck Institute for Chemical Ecology)

  • Bill S. Hansson

    (Max Planck Institute for Chemical Ecology
    Max Planck Institute for Chemical Ecology)

  • Markus Knaden

    (Max Planck Institute for Chemical Ecology
    Max Planck Institute for Chemical Ecology)

Abstract

Animals employ different strategies to establish mating boundaries between closely related species, with sex pheromones often playing a crucial role in identifying conspecific mates. Many of these pheromones have carbon-carbon double bonds, making them vulnerable to oxidation by certain atmospheric oxidant pollutants, including ozone. Here, we investigate whether increased ozone compromises species boundaries in drosophilid flies. We show that short-term exposure to increased levels of ozone degrades pheromones of Drosophila melanogaster, D. simulans, D. mauritiana, as well as D. sechellia, and induces hybridization between some of these species. As many of the resulting hybrids are sterile, this could result in local population declines. However, hybridization between D. simulans and D. mauritiana as well as D. simulans and D. sechellia results in fertile hybrids, of which some female hybrids are even more attractive to the males of the parental species. Our experimental findings indicate that ozone pollution could potentially induce breakdown of species boundaries in insects.

Suggested Citation

  • Nan-Ji Jiang & Xinqi Dong & Daniel Veit & Bill S. Hansson & Markus Knaden, 2024. "Elevated ozone disrupts mating boundaries in drosophilid flies," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47117-7
    DOI: 10.1038/s41467-024-47117-7
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    References listed on IDEAS

    as
    1. Jean-Christophe Billeter & Jade Atallah & Joshua J. Krupp & Jocelyn G. Millar & Joel D. Levine, 2009. "Specialized cells tag sexual and species identity in Drosophila melanogaster," Nature, Nature, vol. 461(7266), pages 987-991, October.
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    3. Thomas O. Auer & Mohammed A. Khallaf & Ana F. Silbering & Giovanna Zappia & Kaitlyn Ellis & Raquel Álvarez-Ocaña & J. Roman Arguello & Bill S. Hansson & Gregory S. X. E. Jefferis & Sophie J. C. Caron , 2020. "Olfactory receptor and circuit evolution promote host specialization," Nature, Nature, vol. 579(7799), pages 402-408, March.
    4. Nan-Ji Jiang & Hetan Chang & Jerrit Weißflog & Franziska Eberl & Daniel Veit & Kerstin Weniger & Bill S. Hansson & Markus Knaden, 2023. "Ozone exposure disrupts insect sexual communication," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
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    6. Yun Ding & Augusto Berrocal & Tomoko Morita & Kit D. Longden & David L. Stern, 2016. "Natural courtship song variation caused by an intronic retroelement in an ion channel gene," Nature, Nature, vol. 536(7616), pages 329-332, August.
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