Abstract
AbstractPosition within the social group has consequences on individual lifespans in diverse taxa. This is especially obvious in eusocial insects, where workers differ in both the tasks they perform and their aging rates. However, in eusocial wasps, bees and ants, the performed task usually depends strongly on age. As such, untangling the effects of social role and age on worker physiology is a key step towards understanding the coevolution of sociality and aging. We performed an experimental protocol that allowed a separate analysis of these two factors using four groups of black garden ant (Lasius niger) workers: young foragers, old foragers, young nest workers, and old nest workers. We highlighted age-related differences in the proteome and metabolome of workers that were primarily related to worker subcaste and only secondarily to age. The relative abundance of proteins and metabolites suggests an improved xenobiotic detoxification, and a fuel metabolism based more on lipid use than carbohydrate use in young ants, regardless of their social role. Regardless of age, proteins related to the digestive function were more abundant in nest workers than in foragers. Old foragers were mostly characterized by weak abundances of molecules with an antibiotic activity or involved in chemical communication. Finally, our results suggest that even in tiny insects, extended lifespan may require to mitigate cancer risks. This is consistent with results found in eusocial rodents and thus opens up the discussion of shared mechanisms among distant taxa and the influence of sociality on life history traits such as longevity.
Funder
Université de Strasbourg
Agence Nationale de la Recherche
Publisher
Springer Science and Business Media LLC
Reference101 articles.
1. Sueur, C., Quque, M., Naud, A., Bergouignan, A. & Criscuolo, F. Social capital: An independent dimension of healthy ageing. PeerJ 1, 33 (2021).
2. Covas, R., du Plessis, M. A. & Doutrelant, C. Helpers in colonial cooperatively breeding sociable weavers Philetairus socius contribute to buffer the effects of adverse breeding conditions. Behav. Ecol. Sociobiol. 63, 103–112 (2008).
3. Aydinonat, D. et al. Social isolation shortens telomeres in African grey parrots (Psittacus erithacus erithacus). PLoS ONE 9, e93839 (2014).
4. Ruan, H. & Wu, C.-F. Social interaction-mediated lifespan extension of Drosophila Cu/Zn superoxide dismutase mutants. PNAS 105, 7506–7510 (2008).
5. Dawson, E. H. et al. Social environment mediates cancer progression in Drosophila. Nat. Commun. 9, 3574 (2018).
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