SPL7 — Arabidopsis thaliana

Summary

AT5G18830, also known as SPL7 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 7) in Arabidopsis thaliana, encodes a transcription factor belonging to the SPL family with an SBP domain that binds DNA, zinc, and proteins, and localizes to the nucleus and nuclear speckles. This gene is associated with copper ion homeostasis and the cellular response to copper starvation, as well as the regulation of secondary and developmental growth, dedifferentiation, and protein farnesylation. It has been linked to numerous traits including copper sensitivity and deficiency response, cadmium stress response, iron homeostasis, lignin content, pollen fertility, flower development, leaf senescence, chlorophyll content, vegetative growth time, root morphology, jasmonic acid and ethylene sensitivity, seed maturation, and oxidative stress response. Studies of related genes in other species connect the family to drought tolerance and anthocyanin accumulation.