Figure 2.—

Trait variance explained by accession or structure across GSL trait types. The fraction of total trait variance (R²) attributable to the three main factors, accession, population structure, and replicate error, are presented for both the 2007 and 2008 experiments. Aliph, average variance per factor across all individual methionine-derived GSL; indolic, average variance per factor across all individual tryptophan-derived GSL; and sum, average variance across the descriptive summation and ratio variables that were used for the analysis per GSL group (Wentzell et al. 2007).