YUC — Arabidopsis thaliana

Summary

AT4G32540, also known as YUC1 or YUCCA, encodes a flavin-containing monooxygenase with indole-3-pyruvate monooxygenase activity (EC 1.14.13.168) that catalyzes a key step in auxin biosynthesis. In Arabidopsis thaliana, YUC1 is associated with root growth and the regulation of morphogenesis, including leaf shaping, metaxylem development, and meristem determinacy. The gene has been linked to numerous developmental processes such as flower and seed development, vascular tissue formation, phototropism, and shade avoidance. YUC1 is also connected to agronomically relevant traits including seed size, root length and thickness, leaf angle, photoperiod sensitivity, plant male sterility, disease tolerance, and callus induction. Additionally, it participates in IAA biosynthesis pathway I and hormone signaling, and its expression varies across natural accessions including Col-0, Ler, and Cvi.