FL1 — Lactuca sativa

Summary

LsFL1, encoded by the garden lettuce (Lactuca sativa) gene LSAT_V11C400197530 on chromosome 4, is a MADS-box transcription factor containing MADS-box and K-box domains. It is associated with the regulation of flowering time, including short-day photoperiodism and vernalization response, as well as floral organ development, carpel identity, and stamen formation. The gene is also linked to seed growth, nitrate assimilation, salicylic acid metabolism, and systemic acquired resistance. Associations extend to traits such as days to flowering, flower and leaf morphology, seed protein content, water use efficiency, and responses to light, temperature, aluminum, and copper. Studies of related genes in other species link the family to flowering transition, vernalization requirement, thermosensitive flowering, and plant growth.