Figure 2.

Effect of S. indica colonisation on the expression of genes involved in the biosynthetic pathway of sterol precursors and glycoalkaloids in tomato leaves and roots. Changes in gene expression between tissues from inoculated plants and tissues from endophyte-free plants are represented as log₂ of the fold change in the form of a heatmap. Data derived from RNA sequencing of leaves and roots from S. indica-colonised and endophyte-free plants. Asterisks (*) indicate FDR-corrected p ≤ 0.05. HMGR1, 3-hydroxy-3-methylglutaryl-CoA reductase; SQS, squalene synthase; CAS, cycloartenol synthase; SSR2, sterol side-chain reductase 2; C5/SD, Δ(7)-sterol-C5-desaturase; TTS1, triterpenoid synthase 1; TTS2, triterpenoid synthase 2; SMT, sterol methyltransferase; adaptedfrom [46,47,48].