LEC1 — Arabidopsis thaliana

Summary

AT1G21970, known as LEC1 (LEAFY COTYLEDON 1) or NF-YB9, encodes a DNA-binding transcription activator specific to RNA polymerase II, a transcriptional co-regulator with chromatin binding and protein heterodimerization activity. In Arabidopsis thaliana, LEC1 is associated with embryogenesis, somatic embryogenesis, seed weight, seed oil content, fatty acid composition, and lipid content. It is linked to the regulation of seed maturation, fatty acid anabolism, flavonoid anabolism, photomorphogenesis, and desiccation tolerance acquisition. The gene has been connected to traits including seed size, seed protein content, oleic acid content, seed longevity, germination rate, flowering time, leaf shape, root morphology, and disease tolerance. LEC1 localizes to the nucleus, CCAAT-binding factor complex, and RNA polymerase complexes, and is associated with pathways in gravitropism and abiotic stress responses.