Genotypic values of the 48 accessions in response to six competition treatments.

'Treatment': A,C, P, S, T and V stand for intraspecific competition, absence of competition and interspecific competition with four species frequently associated with A. thaliana in natural plant communities (i.e. Poa annua, Stellaria media, Trifolium repens and Veronica arvensis). 'Accession': name of the 48 TOU-A1 accessions used in this study. 'ecotype_id' stands for the identity of the 48 accessions for running GWA mapping (see Horton et al. Nature Genetics 2012). FITTOT, BT, INT, RP, FT_diam, H1S, HD, RAMBB, RAMPB_S and COMP have been described in the main text.