A Gene encoding a DCN1 (Defective in Cullin Neddylation-1)-like protein regulates responses to the synthetic auxin 2,4-dichlorophenoxyacetic acid in arabidopsis roots

Ono, Yutaka; Biswas, K. K.*; Nakasone, Akari; Miyazaki, Yuji*; Kiyosue, Tomohiro*; Narumi, Issei

no journal, , 

We have successfully isolated a novel mutants (), which was resistant to synthetic auxin 2,4-dichlorophenoxyacetic acid as shown by a root growth assay. Positional cloning revealed that the AAR3 gene encodes a nuclear localized protein that shares homology with the Defective in Cullin Neddylation-1 (DCN1) protein through the PONY domain. The result suggested that the Arabidopsis DCN1-like protein (AAR3) regulates responses to 2,4-dichlorophenoxyacetic acid in roots.