CAR1 — Brassica oleracea var. botrytis

Summary

BoCAR1 on cauliflower chromosome 4 encodes a protein with a C2 domain and multiple regulatory activities, including kinase regulator, protein phosphatase inhibitor, GAP activity, and signaling receptor activity, along with phospholipid and metal binding. It is associated with activation of defence response to bacteria, upregulation of abscisic acid-mediated signaling and GTPase activity, jasmonic acid signaling, salinity response, and response to wounding. The protein localises to the tonoplast, plastid, mitochondria, cytosol, plasmalemma, and nucleus. BoCAR1 is linked to traits such as transpiration rate, stomatal resistance and closure, water use efficiency, seed yield, anthocyanin content, leaf senescence, root thickness, lateral root length, vegetative growth time, and tolerance to high and low temperature stress, osmotic stress, and disease. Related genes in other species are linked to abscisic acid signaling, drought response, seed dormancy, and virus resistance.