Fig. 2.

Days to flowering of transgenic Arabidopsis with overexpressed SiCOL1 and SiCOL2 under LD condition. a Flowering phenotype of T₂ transgenic Arabidopsis lines with overexpressed SiCOL1 and SiCOL2. Photo was taken at 7 d after flowering of the SiCOL1 transgenic line. b Days to flowering of T₂ transgenic Arabidopsis lines with overexpressed SiCOL1 and SiCOL2 under LD condition. The T₂ transgenic Arabidopsis lines containing empty vector were used as control. For each test of 35S::SiCOL1, 35S::SiCOL2 and empty vector, days to flowering of ten lines (each contained 10 plants) were counted (Additional file 1: Table S2). The bar indicates standard deviation