SR1 — Nicotiana attenuata

Summary

A4A49_13192 (SR1, CMTA4) in coyote tobacco (Nicotiana attenuata) encodes a calmodulin-binding transcription activator (CAMTA) family protein with DNA-binding and transcriptional co-regulator activity. The gene is associated with diverse biological processes including cellular response to aluminum, reactive oxygen species and hydrogen peroxide biosynthesis, cytokinin metabolism, anthocyanin anabolism and its regulation, pigmentation, defense response upregulation to insects, exocytosis, extracellular ATP signaling, pistil development, and responses to cold and freezing. It is linked to traits such as total soluble sugar content, fruit quality, seed size, flowering time, leaf senescence, root development, and responses to high and low temperature stress. Related genes in other species connect the family to pathogen resistance, salicylic acid pathway regulation, cold and salt tolerance, aluminum resistance, and anthocyanin accumulation.