Fig. 5

The loading and score plot of 22 lettuce cultivars at mature stage (a) and bolting stage (b). The score plot was grouped using leaf color (green, green/red, and red). The numerals (1–22) correspond to the cultivars described in Table 2
The loading and score plot of 22 lettuce cultivars at mature stage (a) and bolting stage (b). The score plot was grouped using leaf color (green, green/red, and red). The numerals (1–22) correspond to the cultivars described in Table 2