PT - JOURNAL ARTICLE AU - Lloyd, AM AU - Walbot, V AU - Davis, RW TI - Arabidopsis and Nicotiana anthocyanin production activated by maize regulators R and C1 AID - 10.1126/science.1465611 DP - 1992 Dec 11 TA - Science PG - 1773--1775 VI - 258 IP - 5089 4099 - http://science.sciencemag.org/content/258/5089/1773.short 4100 - http://science.sciencemag.org/content/258/5089/1773.full SO - Science1992 Dec 11; 258 AB - Anthocyanin pathway-specific transcriptional activators R and C1 from the monocot maize were expressed in two dicots, Arabidopsis thaliana and Nicotiana tabacum. Expression of R caused augmented anthocyanin pigmentation in both plant species and augmented trichome (hair) production in Arabidopsis. Alone, C1 had no effect. Hybrid transgenic Arabidopsis expressing both C1 and R produced anthocyanins in root, petal, and stamen tissues that normally never express anthrocyanins. When R was expressed in the transparent testa glabrous (without anthocyanins and trichomes) mutant of Arabidopsis, the deficiency was complemented and both anthocyanins and trichomes were restored.