FL1 — Lactuca sativa

Summary

LsFL1, on lettuce chromosome 4, encodes a MADS-box transcription factor with a MEF2-like domain. It is associated with DNA-binding, transcription factor activity, and protein dimerization, and has been linked to the regulation of flowering time, particularly through photoperiod and vernalization responses. The gene is connected to floral organ development, including flower and inflorescence morphology, as well as traits such as seed protein content, leaf size, and water use efficiency. Associations also extend to stress responses, including high temperature, salt, and aluminum stress, and to processes like nitrate assimilation, salicylic acid metabolism, and stomatal development. Studies of related genes in other species link the family to flowering time, vernalization sensitivity, and plant growth traits.