Promoter regions (1.6-2.0 kb upstream of ATG) of the type-A ARRs were amplified by PCR and cloned upstream of the b-glucuronidase (GUS) gene in the pCambia3301 binary vector, except for ARR5 which was cloned in to pBI101 (See primers used). Constructs were then transformed into WT Columbia plants.
Type-A promoter GUS fusions
Line: Stock Number
ARR3 CS25259
ARR4 CS25260
ARR5 CS25261 (Note: in WS)
ARR6 CS25262
ARR8 CS25263
ARR9 CS25264