CKR1 — Solanum lycopersicum

Summary

Tomato CKR1 (SlCKR1, also known as SlEIN2) encodes a protein with C2H4 receptor activity, histidine kinase activity, dual-specificity protein kinase activity, and manganese ion transmembrane transporter activity, and belongs to the NRAMP family. It is associated with ethylene production, lycopene biosynthesis, and disease resistance to Pseudomonas syringae pv. tomato DC3000 in tomato. The gene is linked to fruit ripening, fruit color and shape, leaf senescence, seed yield and dormancy, root elongation, gravitropism, cell expansion, and responses to abiotic stresses including aluminum, arsenic, ozone, and high temperature. It is also connected to aphid response, herbicide sensitivity, anthocyanin content, photosynthetic rate, and stomatal traits. Studies of related genes in other species link the family to ethylene signal transduction, iron acquisition, salinity and drought tolerance, and susceptibility to necrotrophic pathogens.