Presence of Two Variants of Lycopene β-Cyclase Gene in Genomes of Citrus and its Relatives

Cloning and expression analysis of the phytoene synthase gene in ‘Granny Smith’ apple (Malus × domestica Borkh.)

“…In view of the importance of carotenoids for plants and human health, research on their metabolic mechanisms has become a hot topic in the study of plant secondary metabolism over the past two decades [4,5]. With the advent of molecular biology-related technologies, the biochemical pathway of plant carotenoid biosynthesis has been elucidated, and carotenogenic genes have been isolated from many plants [6,7]. Phytoene synthase (PSY) has been confirmed to act as the ratelimiting enzyme in the accumulation of carotenoids [7,8].…”