ArticleCommunications biology2021
Cuticular modified air sacs underlie white coloration in the olive fruit fly, Bactrocera oleae.
Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 8 citations in OpenAlex.
- Structural background of intraspecific color polymorphism and the driver of geographic patterns in a shining leaf chafer.Frontiers in zoology · 2025Article
- Sexual dimorphism in the structural colours of the wings of the black soldier fly (BSF) Hermetia illucens (Diptera: Stratiomyidae).Scientific reports · 2024Article
- A Novel Cuticular Protein-likeInternational journal of molecular sciences · 2023Article
- The origin of black and white coloration of the Asian tiger mosquitoBeilstein journal of nanotechnology · 2023Article
- Autofluorescent Biomolecules in Diptera: From Structure to Metabolism and Behavior.Molecules (Basel, Switzerland) · 2022Review
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Authors and funding
5 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Here, the ultrastructure and development of the white patches on thorax and head of Bactrocera oleae are analysed using scanning electron microscopy, transmission electron microscopy, and fluorescence microscopy. Based on these analyses and measurements of patch reflectance spectra, we infer that white patches are due to modified air sacs under transparent cuticle. These air sacs show internal arborisations with beads in an empty space, constituting a three-dimensional photonic solid responsible for light scattering. The white patches also show UV-induced blue autofluorescence due to the air sac resilin content. To the best of our knowledge, this research describes a specialized function for air sacs and the first observation of structural color produced by tracheal structures located under transparent cuticles in insects. Sexual dimorphism in the spectral emission also lays a structural basis for further investigations on the biological role of white patches in B. oleae.
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