Additional file 3: Figure S1. Virus-induced gene silencing of P. sativum phytoene desaturase (PsPDS). (A) Leaves of a control plant inoculated with PEBV carrying a fragment of Bean yellow mosaic virus (pCAPE2-Con) remained green; (B) leaves of a plant inoculated with PEBV carrying a fragment of PsPDS (pCAPE2-PDS) showed a characteristic bleaching phenotype