Fig. 1 | Scientific Reports

Fig. 1

From: Integrative path modeling and QTL mapping identify maturity, stem strength, and cell wall composition driving lettuce resistance to Sclerotinia minor

Fig. 1

Principal component analysis (PCA) of variables evaluated in the 2002 (SP02, FA02) and 2017 (SU17) experiments. The arrows indicate the direction and strength of each variable’s contribution to the principal components, with longer arrows representing stronger contributions. Arrows pointing in the same direction for variables indicate a positive correlation, suggesting that as one variable increases, the other also tends to increase. Conversely, arrows pointing in opposite directions indicate a negative correlation, meaning that as one variable increases, the other tends to decrease. The grouping of data points shows the clustering of variables.

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