Figure 7.

Expression profiles of genes in cucumber UVR8 signaling pathway in two near isogenic lines under LDUVB and UVB-free light conditions. Microscopic observation indicates primarily longitudinal cell growth during hypocotyl elongation in CC3 under UVB-free light (A1). Hypocotyl growth is inhibited by LDUVB in CC3 or SWCC8 under either condition due to lack of cell elongation (A2). The hypocotyl elongation in two near isogenic lines (NIL-LH and NIL-SH) under UVB-free light or its inhibition under LDUVB is not regulated by CsUVR8 (B1 and B2), CsCOP1 (C1 and C2), or CsCSH (E1 and E2) at the transcription level but is consistent with the alternated expression of CsHY5 and cell-elongated-related genes (F1 and F2). From B to F, the y axis is relative expression level of each gene. The left and right panels are for NIL-LH and NIL-SH, respectively.