ArticleiScience2026
Exposure to non-nestmate odors changes the odorant receptor profile in
Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
Social insects recognize their nestmates by colony-specific olfactory labels stored as neural templates in the memory. The template is often considered a product of learning in higher brain centers. However, some evidence suggests that the template may be stored in the neural periphery, i.e., the antennae or antennal lobes. We investigated a potential mechanism for peripheral nestmate recognition templates: the composition and plasticity of the antennal odorant receptor (OR) profile. We found that OR gene expression in leaf-cutting ants is colony-specific, mirroring the colony-specific recognition labels. After exposure to non-nestmate odors, the ants exhibited reduced aggression toward the non-nestmate label, indicating habituation. When we exposed two different colonies to the same non-nestmate odor, their OR profiles converged. These results suggest that the olfactory system can adapt to the current nest-specific olfactory environment and may explain how habituation plays a role in nestmate recognition.
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