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Updated: Apr 18, 2026

Maintaining Biological Cultures and Measuring Gene Expression in Aphis nerii: A Non-model System for Plant-insect Interactions
Published on: August 31, 2018
Aggressive mimicry coexists with mutualism in an aphid
Adrián Salazar1, Benjamin Fürstenau2, Carmen Quero3
1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Apartado de Correos 22085, 46071 Valencia, Spain;
Aphids exhibit aggressive mimicry by altering their chemical profiles to be cared for as ant larvae. This unprecedented plastic behavior exploits ant resources, blurring the lines between cooperation and exploitation in insect interactions.
Area of Science:
- Evolutionary biology
- Chemical ecology
- Insect behavior
Background:
- Ant-aphid relationships span a spectrum from mutualism to antagonism.
- Understanding the evolution of exploitation and cooperation is a key challenge.
Purpose of the Study:
- To investigate an unprecedented case of aggressive mimicry in aphids.
- To explore the evolutionary dynamics of aphid-ant interactions.
Main Methods:
- Comparative analysis of two aphid morphs produced by Paracletus cimiciformis.
- Gas chromatography-mass spectrometry (GC-MS) to analyze cuticular hydrocarbon profiles.
- Observation of aphid-ant interactions and aphid feeding behavior.
Main Results:
- One aphid morph engages in conventional trophobiosis with Tetramorium ants.
- An alternative, genetically identical morph mimics ant larvae's chemical profiles.
- Mimic aphids are transported to ant brood chambers and feed on hemolymph.
Conclusions:
- Aphids can biosynthesize host cuticular chemicals for exploitation, a rare trait in arthropods.
- This study reveals a remarkable instance of plastic aggressive mimicry in aphids.
- The findings add a new dimension to aphid-ant interactions, highlighting the evolutionary interface of cooperation and exploitation.
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