Evidence map›Paper›PMID 40300630›Full record

ArticleProceedings. Biological sciences2025

Ancestral complexity and constrained diversification of the ant olfactory system.

Simon Marty, Antoine Couto, Erika H Dawson, Neven Brard, Patrizia d'Ettorre, Stephen H Montgomery, Jean-Christophe Sandoz

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Cambrian Artiopoda Reveals a Constraint in Euarthropod Brain Evolution.bioRxiv : the preprint server for biology · 2026
    Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Simon Marty *IDEEV, Université Paris-Saclay, CNRS, IRD, Evolution Genomes Behaviour and Ecology, 91190 Gif-sur-Yvette, France.ORCID 0009-0009-4399-8978
Antoine Couto *IDEEV, Université Paris-Saclay, CNRS, IRD, Evolution Genomes Behaviour and Ecology, 91190 Gif-sur-Yvette, France.ORCID 0000-0002-5528-7331
Erika H DawsonLaboratory of Experimental and Comparative Ethology, Université Sorbonne Paris Nord, 93430 Villetaneuse, France.ORCID 0000-0002-1445-3575
Neven BrardLaboratory of Experimental and Comparative Ethology, Université Sorbonne Paris Nord, 93430 Villetaneuse, France.
Patrizia d'EttorreLaboratory of Experimental and Comparative Ethology, Université Sorbonne Paris Nord, 93430 Villetaneuse, France.ORCID 0000-0001-8712-5719
Stephen H Montgomery *School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK.ORCID 0000-0002-5474-5695
Jean-Christophe Sandoz *IDEEV, Université Paris-Saclay, CNRS, IRD, Evolution Genomes Behaviour and Ecology, 91190 Gif-sur-Yvette, France.ORCID 0000-0002-5423-9645

Funding

Agence Nationale de la RechercheLeverhulme Trust
6 · The paper itself

Abstract

Communication is a cornerstone of social living, allowing the exchange of information to align goals and synchronize behaviour. Ants, a group of highly successful social insects, have heightened olfactory abilities that are integral to their evolutionary success. Essential for colony cohesion and cooperation, a female-specific olfactory subsystem processes information about nestmate recognition cues (cuticular hydrocarbons), including basiconic sensilla on the antenna and a cluster of specific glomeruli in the antennal lobe. While it has often been linked to ants' social lifestyle, the evolutionary origins and phylogenetic distribution of this system remain unknown. We conducted a comparative exploration of the ant olfactory system across eight major subfamilies, integrating neuroanatomical, chemical and behavioural analyses. Our findings reveal that sophistication of the ant olfactory system has deep evolutionary roots. Moreover, antennal lobe investment is not associated with social traits such as colony size, polygyny or foraging strategies, but correlates with cuticular hydrocarbon profile complexity. Despite neuroanatomical differences, different ant species consistently excel in nestmate discrimination, indicating adaptation to chemical diversity while maintaining reliable social recognition. This suggests that cuticular hydrocarbon profile and neuronal investment in olfactory neuropil have co-evolved to sustain discrimination performance.

Indexed as

AntsBiological EvolutionSmellAnimalsArthropod AntennaeFemaleHydrocarbonsPhylogenySocial BehaviorHydrocarbonscuticular hydrocarbonevolutionFormicidaenestmate recognitionolfactionsocial insects

Identifiers

PMID40300630
PMCPMC12040470

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.