Ectopic Expression of AtYUC8 Driven by GL2 and TT12 Promoters Affects the Vegetative Growth of Arabidopsis

Auxin plays an essential role in regulating Arabidopsis growth and development. YUCCA (YUC) family genes encode flavin monooxygenases, which are rate-limiting enzymes the auxin biosynthetic pathway. Previous studies showed that YUC8 overexpression (YUC8 OE), as well ectopic expression of driven by GL2 (GLABRA 2) TT12 (TRANSPARENT TESTA 12) promoters, specifically expressed epidermis inner seed integument, respectively, produced larger seeds compared to Col. However, impact these transgenic lines on vegetative remains unclear. Here, we show GL2pro:YUC8-GFP TT12pro:YUC8-GFP plants produce a moderate excessive accumulation phenotype OE. These two smaller rosette leaf, higher plant height, fewer branches, longer siliques. data will provide basis for study relationship between synthesis crop yield.