FIGURE 1.

Schematic representation of plant growth stages for A. alpina Pajares (Paj, wild type) and its perpetual flowering 1‐1 (pep1‐1) mutant derivative used in lipid analysis. (a) Plant growth and harvesting scheme. Solid black lines, long‐day conditions at 20°C; open line, short‐day conditions at 4°C (vernalization); four developmental stages for harvesting, I, II, III, and II′. (b) Schematic representation of Paj and pep1‐1 architecture of lateral stems at stages I, II, III, and II′. Lateral stems were harvested, subdivided into perennial (PZ), and annual (AZ) zones, as indicated (see also Sergeeva et al., 2020). In addition to lateral stems, entire root systems of single plants were harvested as one root sample. The schematic plant representation was partially adopted from Wang et al. (2009), Lazaro et al. (2018), and Vayssiѐres et al. (2020)