Original ResearchPublished 4 March 2026CRISPR/Cas9-mediated knockout of DFR alters pigmentation and shifts flavonoid accumulation in red leaf lettuce without detectable growth penaltiesAi Nagamine · Masaki Ono · Osuke Sato · Eiji Goto · Hiroshi EzuraFrontiers in Genome Editingdoi 10.3389/fgeed.2026.1755922