Fig. 1

FT activates the transcription of SWEET10 mRNA. a Quantification of SWEET10 mRNA levels in leaves of different FT-overexpressing plants (9 LDs at ZT16). b Comparison of SWEET10 mRNA levels in leaves and shoot apices of different FT-overexpressing plants (9 LDs at ZT16). c GUS expression levels in T3 pSWEET10:GUS (Col-0) independent transgenic lines #3 and #7 (left) and in T1 plants from the cross between pGAS1:FT and pSWEET10:GUS lines #3 and #7 (right) at 7 LDs. d GUS staining of pSWEET10:GUS transgenic lines #3 and #7 in Col-0 background (T3 generation) during a time-course in LDs. Pictures of (c) and (d) were taken at ZT8. Scale bar = 5 mm. Asterisks indicate young leaves. e Quantification of SWEET10 expression levels in shoot apices of Col-0 and ft tsf double mutants in a time-course under LDs. Shoot apices were sampled at ZT8. Errors bars in A, B and E indicate Standard Deviation