CO — Lactuca sativa

Summary

LsCO (LSAT_V11C500260090) on chromosome 5 of garden lettuce encodes a CONSTANS-like protein containing a CCT domain and zinc-finger B-box domains, and is annotated with numerous molecular functions including OGTase, peptide-O-fucosyltransferase, and various histone methylase activities. The gene is associated with regulation of phytochrome signaling, photoperiodic flowering, chlorophyll breakdown, and circadian clock entrainment. It is linked to a wide range of traits including photoperiod sensitivity, inflorescence branch arrangement, seed protein content, leaf morphology, stress responses, and vegetative vigor. Related genes in other species are associated with photoperiod-dependent flowering time, stress tolerance, root architecture, and tuberization.