Multi-Level Bioinformatics Analysis Reveals Expression Divergence and Potential Transcriptional Regulation of the PSY Gene Family in Marigold
Marigold (Tagetes erecta L.) petals accumulate high levels of lutein and other carotenoids, making marigold an important plant source of natural lutein. Phytoene synthase (PSY) is a key rate-limiting enzyme in the carotenoid biosynthetic pathway, yet the expression divergence of the PSY family and its upstream transcri...