PRR1 — Capsicum annuum

Summary

CaPRR1 (T459_00979) on pepper chromosome 1 encodes a protein with NmrA-like and NAD(P)-binding domains that exhibits lariciresinol reductase, pinoresinol reductase, and oxidoreductase activities, along with DNA-binding transcription factor activity. The gene is associated with lignan metabolism, including pinoresinol, lariciresinol, and secoisolariciresinol biosynthesis and breakdown, as well as phenol-containing compound and ether metabolism. CaPRR1 is associated with positive regulation of photomorphogenesis, heterochronic development, and filament development, and localizes to the nucleus, cytoplasm, plasmodesmata, and stress granules. Associations with traits include fruit color, carotenoid and anthocyanin content, flowering time, leaf and seed growth and development, plant growth, and responses to salt and arsenic. Studies of related genes in other species connect the family to pinoresinol reduction, lariciresinol biosynthesis, and circadian rhythm.