RDR6 — Camelina sativa

Summary

CsRDR6 (CSA04G034960) on Camelina sativa chromosome 4 encodes a protein with RNA-dependent RNA polymerase domains, RdRP activity, RNA binding, and ubiquitin ligase binding functions. The gene is associated with posttranscriptional gene silencing by RNA, ta-siRNA and siRNA processing, antiviral response, heat acclimation, defence against bacteria, and vegetative phase change. It has been linked to pollen recognition, pistil and carpel development, wax anabolism, and maintenance of shoot apical meristem identity. The protein localises to the cytoplasm, nucleus, endoplasmic reticulum, stress granules, and the RNA-dependent RNA polymerase complex. Associations include leaf morphology and anthocyanin content traits, as well as phenotypes such as ta-siRNA biogenesis, antiviral defence, lateral root development, leaf polarity, fertility, seed dormancy, and abiotic stress tolerance. Studies of related genes in other species link the family to virus resistance, Sclerotinia sclerotiorum resistance, self-incompatibility, and narrow leaves.