Policy and ethics statement

Link to policy and ethics statement here.

Note on post-experiment handling of genetic material:

Uncontrolled transplant experiments can lead to genetic contamination of local populations [1,2] and to species invasions [3]. Although A. thaliana is a cosmopolitan plant native or naturalized to all countries where GrENE-net experiments are carried out, we ask participants to grow their replicate populations in a controlled area, preferably an institution’s ground, free from natural A. thaliana populations. Furthermore, after the experiment all used soil and plant material will be incinerated and a treatment herbicide will be used in a secured perimeter to eliminate any trace of planted seeds, as has been done before in similar outdoor experiments [4,5].


[1] Rogers & Siemann (2004) Invasive ecotypes tolerate herbivory more effectively than native ecotypes of the Chinese tallow tree Sapium sebiferum. J Appl Ecol 41:561-570

[2] Saltonstall K (2002) Cryptic invasion by a non-native genotype of the common reed, Phragmites australis, into North America. Proc Nat Acad Sci 99:2445-2449

[3] Seebens et al. 2017. “No Saturation in the Accumulation of Alien Species Worldwide.” Nature Communications 8 (February): 14435.
[4] Exposito-Alonso et al. 2018. “Spatio-Temporal Variation in Fitness Responses to Contrasting Environments in Arabidopsis thaliana.” Evolution. https://doi.org/10.1111/evo.13508.
[5] Exposito-Alonso et al. 2017. “A Rainfall-Manipulation Experiment with 517 Arabidopsis thaliana Accessions.” bioRxiv. https://doi.org/10.1101/186767.