Bacterial communities within Phengaris (Maculinea) alcon caterpillars are shifted following transition from solitary living to social parasitism of Myrmica ant colonies.

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License: CC BY 4.0
Serval ID
serval:BIB_DC22A357DABE
Type
Article: article from journal or magazin.
Collection
Publications
Title
Bacterial communities within Phengaris (Maculinea) alcon caterpillars are shifted following transition from solitary living to social parasitism of Myrmica ant colonies.
Journal
Ecology and evolution
Author(s)
Szenteczki M.A., Pitteloud C., Casacci L.P., Kešnerová L., Whitaker MRL, Engel P., Vila R., Alvarez N.
ISSN
2045-7758 (Print)
ISSN-L
2045-7758
Publication state
Published
Issued date
04/2019
Peer-reviewed
Oui
Volume
9
Number
8
Pages
4452-4464
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Bacterial symbionts are known to facilitate a wide range of physiological processes and ecological interactions for their hosts. In spite of this, caterpillars with highly diverse life histories appear to lack resident microbiota. Gut physiology, endogenous digestive enzymes, and limited social interactions may contribute to this pattern, but the consequences of shifts in social activity and diet on caterpillar microbiota are largely unknown. Phengaris alcon caterpillars undergo particularly dramatic social and dietary shifts when they parasitize Myrmica ant colonies, rapidly transitioning from solitary herbivory to ant tending (i.e., receiving protein-rich regurgitations through trophallaxis). This unique life history provides a model for studying interactions between social living, diet, and caterpillar microbiota. Here, we characterized and compared bacterial communities within P. alcon caterpillars before and after their association with ants, using 16S rRNA amplicon sequencing and quantitative PCR. After being adopted by ants, bacterial communities within P. alcon caterpillars shifted substantially, with a significant increase in alpha diversity and greater consistency in bacterial community composition in terms of beta dissimilarity. We also characterized the bacterial communities within their host ants (Myrmica schencki), food plant (Gentiana cruciata), and soil from ant nest chambers. These data indicated that the aforementioned patterns were influenced by bacteria derived from caterpillars' surrounding environments, rather than through transfers from ants. Thus, while bacterial communities are substantially reorganized over the life cycle of P. alcon caterpillars, it appears that they do not rely on transfers of bacteria from host ants to complete their development.
Keywords
16S amplicon sequencing, Lepidoptera, Lycaenidae, Spiroplasma, butterflies, myrmecophily
Pubmed
Web of science
Open Access
Yes
Create date
13/05/2019 8:26
Last modification date
20/08/2019 17:01
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