sGWAS and GWAS hits for 14 traits under three Mg conditions. The x-axis shows the chromosomal coordinates for Arabidopsis; the y-axis represents 14 traits. The GWAS hits observed in the saturated model (sGWAS), which was adjusted by the top five eigenvectors, are presented on the top; the hits observed in the naïve model (nGWAS) are represented in the bottom panel. GWAS hits are represented by black circles; and those hits shared by both nGWAS and sGWAS are filled with color. A total of 51, 74, and 81 GWAS hits were shared under low-, normal-, and high-Mg conditions, respectively. A GWAS hit was defined as in which the number of markers was 156,744. GWAS, genome-wide association studies; Mg, magnesium; nGWAS, naïve GWAS; sGWAS, saturated GWAS.