Fig. 2
From: Heterotic patterns of primary and secondary metabolites in the oilseed crop Brassica juncea

PCA loading plot of metabolites in B. juncea showing separation of hybrids (EH2 × V and V × EH2) from inbreds (EH2 and Varuna) in a flag leaf, b young leaf, and c mature leaf. Orange box represents metabolites and blue box represents lines (n = 5). The variability for each principal component is depicted in parenthesis and provided as supplementary Tables S14-16. The hybrids are grouped separately from their inbreds (marked as circles)