Figure legends
Figure 1. Mean trait values in response to different N
availability in Arabidopsis accessions. Screening of Arabidopsis
accessions for early rosette diameter (ERD, n = 176), final rosette
diameter (FRD, n = 155), flowering time (FT, n = 163), and yield (YIE, n
= 134) at optimal (Opt), intermediate (Int), and limiting (Lim) N
conditions. A. Boxplots showing the mean values for the complex
traits across accessions in each N condition. The line indicates the
median value. B. k -means clustering of the reaction
norms representing groups of accessions with similar profiles in
response to N availability for ERD (n = 142), FRD (n = 109), FT (n =
127), and YIE (n = 102) at optimal, intermediate or limiting N. For each
cluster, the profile is represented by a different color. The accessions
belonging to each cluster are given in Table S2. The optimal number, k,
of clusters for each trait was determined by silhouette index (see
Methods).
Figure 2. Plasticity of complex traits in response to N
availability in Arabidopsis accessions. A. Boxplots showing
the CV of the accessions for each trait across the three nitrogen
conditions (ERD, n = 142, FRD, n = 109, FT, n = 127, YIE, n = 102).B. Clustering of the accessions based on the CVs for the four
phenotypes (n=77, with the CVs for all phenotypes available).C. Spearman correlation between the CV of complex traits across
the three nitrogen conditions. Adjusted p-values were calculated using
Benjamini-Hochberg correction. Significant rscorrelations (FDR < 0.05) are represented as red, for
positive, and blue, for negative.