Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Transcriptomic basis of within- and trans-generational predator-induced plasticity in the freshwater snail Physa acuta

Abstract

Inducible defences in response to predation risk are a well-known example of adaptive phenotypic plasticity. Although inducible defences have been studied mainly within a generation (within-generational plasticity), there is now clear evidence that ancestral exposure to predation risk can influence the defences expressed by offspring, even if they have not been exposed themselves (transgenerational plasticity). The molecular mechanisms allowing the transmission of environmental information across generations are not well understood. In this study, we combined measures of antipredator responses (behavioural and morphological) with transcriptomic investigations across two generations in the freshwater snail Physa acuta. We hypothesised that both within- and transgenerational plasticity would induce phenotypic changes associated with differential gene expression. Our results confirmed within- and transgenerational plasticity: F1 snails respond to predator-cue exposure by increasing escape behaviour, reducing shell length, and developing thicker and slenderer shells, whereas F2 snails from exposed parents have longer and thicker shells with narrower apertures. Within- and transgenerational plasticity were accompanied by the differential expression of 112 genes (101 up- and 11 downregulated) and 23 differentially expressed genes (17 up- and 6 downregulated), respectively. Within- and transgenerational plasticity did not share common differentially expressed genes, but the associated molecular functions, involving metabolism and transcription regulation, were similar. These results suggest that predator-induced within-generational plasticity and transgenerational plasticity may result from different genomic pathways and may evolve independently.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Locations of the different landmarks (circle symbols) and pseudo-landmarks (positioned using a geometric method, square symbols) on P. acuta shell.
Fig. 2: Effects of developmental exposure to predator cues (WGP) on crawling-out behaviour, shell length and shell thickness in the F1 generation.
Fig. 3: Shape variation of nonexposed and exposed snails from the F1 generation (blue circle and red triangle symbols, respectively.
Fig. 4: Effects of parental exposure (TGP) on crawling-out behaviour, shell length and shell thickness in the F2 generation.
Fig. 5: Shape variation of F2 snails from nonexposed and exposed parents (blue circles and red triangles symbols, respectively).
Fig. 6: PCA plot of the 30 transcriptome samples of P. acuta snails showing the divergence in differential expression among the first 500 most differentially expressed genes (selected by greatest |LFC|).
Fig. 7: Overlap of differentially expressed genes between F1 and F2 generations.
Fig. 8: Proportions of classes of functions of DEGs in both generations.

Similar content being viewed by others

Data availability

RNA-seq data have been deposited in the European Nucleotide Archive (ENA) under the accession number [PRJEB87216]. The raw sequencing data are publicly available at. Additionally, scripts used for the analysis, along with the non-genomic data, have been made available on Zenodo. The repository can be accessed at https://doi.org/10.5281/zenodo.15043538.

References

Download references

Acknowledgements

We are grateful to Cyril Degletagne who helped in experimental works and to the Rhône-Alpes bioinformatic centre (PRABI) that has supported bioinformatics analyses. This work was financially supported by the BioEnviS research federation (FR3728) of Lyon University and the TEATIME (ANR-21-CE02-0005) grants from the French National Research Agency (ANR).

Funding

This work was financially supported by the TEATIME (ANR-21-CE02-0005) grants from the French National Research Agency (ANR).

Author information

Authors and Affiliations

Authors

Contributions

EL, SP and TL conceived the project. JT, SP and EL performed the experiments. LK performed RNA extractions and libraries. LD, JT and MH analysed phenotypic data. LD, NS and TL performed bioinformatic molecular analyses. L.D. wrote the first version of the manuscript. All authors revised the manuscript.

Corresponding author

Correspondence to Léo Dejeux.

Ethics declarations

Competing interests

The authors declare no competing interests.

Ethics

This work did not require ethical approval from a human subject or animal welfare committee.

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Associate editor: Sebastián Ramos-Onsins.

Supplementary information

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dejeux, L., Saclier, N., Tariel-Adam, J. et al. Transcriptomic basis of within- and trans-generational predator-induced plasticity in the freshwater snail Physa acuta. Heredity (2025). https://doi.org/10.1038/s41437-025-00775-9

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1038/s41437-025-00775-9

Search

Quick links