ETR — Camelina sativa

Summary

CsETR (CSA07G030380) on Camelina sativa chromosome 7 encodes an ethylene receptor with histidine kinase activity (EC 2.7.13.3), dual-specificity protein kinase activity, and ethene binding. The protein contains GAF, histidine kinase, and receiver domains characteristic of the ETR family. CsETR is associated with detection of ethylene stimulus, ethylene-mediated signaling, regulation of seedling and root development, stem cell renewal, calcium ion homeostasis, and jasmonic acid/ethylene-dependent systemic resistance. It is linked to agronomically important traits including seed yield, leaf shattering, photosynthetic ability, drought resistance, high temperature stress response, herbicide sensitivity, anthocyanin content, stomatal resistance, days to flowering, stem elongation, and responses to aphids, aluminum, and water stress. The gene is also connected to enhanced thermotolerance, ethylene-induced senescence, and root meristem development. Studies of related genes in other species link the family to ethylene signal transduction, iron acquisition, salinity tolerance, and disease resistance.