Figure 5From: RNA interference-based gene silencing of phytoene synthase impairs growth, carotenoids, and plastid phenotype in Oncidium hybrid orchidRelative transcript levels of carotenoid biosynthesis genes in transgenic Oncidium orchids. Transcript levels of the carotenoid biosynthesis genes. GGDS: GGPP synthase; PSY: phytoene synthase; PDS: phytoene desaturase; ZDS: zeaxanthin desaturase; LCY: lycopene cyclase. ZEP: zeaxanthin epoxidase. Gene transcript levels were measured by RT-qPCR. Transcript levels were calculated and normalized with respect to ubiquitin mRNA. The experiment was repeated three times.Back to article page