Fig. 1

Factors explaining variation in metabolite abundance across a maize diversity panel. A Estimated repeatability of measured metabolite abundance for each metabolite quantified in this study. Repeatability is defined as the proportion of total variance in metabolite abundance which can be explained by genotype in a dataset of 47 maize genotypes sampled and analyzed twice independently from different plants in the same field. B Proportion of total variance in each metabolite’s abundance explained by the factors genotype, batch, run order, and the remaining residual variance. Genetic variance in panel B is not equivalent to repeatability in panel A as a model with more factors was fit to explain variance in panel B