Feedback Regulation of FLC by FLOWERING LOCUS T (FT) and FD through a 5'FLC Promoter Region in Arabidopsis

摘要

Dear Editor, Recently,it was reported that the florigenic FT protein bound to a 3'region of the potent floral repressor FLC (FLOWERING LOCUS C) to activate the expression of long noncoding antisense RNAs known as COOLAIR and consequently repress FLC expression to control flowering time and seed dormancy in Arabidopsis (Chen and Penfield,2018).Here,we show that FT represses FLC expression through a 5'promoter region,but not COOLAIR.